24AA00/24LC00/24C00

128-Bit I2C™ Bus Serial EEPROM

Device Selection Table Package Types
Device VCC Range Temp Range 8-PIN PDIP/SOIC

24AA00 1.8-5.5 I NC 1 8 VCC

24LC00 2.5-5.5 I NC 2 7 NC
24C00 4.5-5.5 I,E NC 3 6 SCL
Vss 4 5 SDA
Features:
• Single Supply with Operation down to 1.8V for 8-PIN TSSOP
24AA00 Devices, 2.5V for 24LC00 Devices NC 1 8 VCC
• Low-Power CMOS Technology: NC 2 7 NC
- Read current 500 A, typical NC 3 6 SCL
VSS 4 5 SDA
- Standby current 100 nA, typical
• 2-Wire Serial Interface, I2C™ Compatible
5-PIN SOT-23 DFN/TDFN
• Schmitt Trigger Inputs for Noise Suppression
• Output Slope Control to Eliminate Ground Bounce SCL 1 5 VCC NC 1 8 VCC
• 100 kHz and 400 kHz Clock Compatibility NC 2 7 NC
VSS 2
• Page Write Time 3 ms, Typical NC 3 6 SCL
SDA VSS 4 5 SDA
• Self-Timed Erase/Write Cycle 3 4 NC
• ESD Protection >4000V
• More than 1 Million Erase/Write Cycles
Block Diagram
• Data Retention >200 Years
• Factory Programming Available HV Generator

• Packages include 8-lead PDIP, SOIC, TSSOP,

DFN, TDFN and 5-lead SOT-23 I/O Memory
Control Control
• Pb-Free and RoHS Compliant XDEC EEPROM
Logic Logic
Array
• Temperature Ranges Available:
- Industrial (I): -40C to +85C
SDA SCL
- Automotive (E): -40C to +125C YDEC

Description: VCC Sense AMP

VSS R/W Control
The Microchip Technology Inc. 24AA00/24LC00/
24C00 (24XX00*) is a 128-bit Electrically Erasable
PROM memory organized as 16 x 8 with a 2-wire
serial interface. Low-voltage design permits operation
down to 1.8 volts for the 24AA00 version, and every
version maintains a maximum standby current of only
1 A and typical active current of only 500 A. This
device was designed for where a small amount of
EEPROM is needed for the storage of calibration
values, ID numbers or manufacturing information, etc.
The 24XX00 is available in 8-pin PDIP, 8-pin SOIC *24XX00 is used in this document as a generic part number for
(3.90 mm), 8-pin TSSOP, 8-pin 2x3 DFN, TDFN and the 24AA00/24LC00/24C00 devices.
the 5-pin SOT-23 packages.
I2C is a trademark of Philips Corporation.

 1996-2011 Microchip Technology Inc. DS21178H-page 1

24AA00/24LC00/24C00
1.0 ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings(†)

VCC .............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ......................................................................................................... -0.6V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied ................................................................................................-40°C to +125°C
ESD protection on all pins ..........................................................................................................................................4 kV
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only and functional operation of the device at those or any other conditions
above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.

TABLE 1-1: DC CHARACTERISTICS

All Parameters apply across the

Industrial (I): TA = -40°C to +85°C, VCC = 1.8V to 5.5V
recommended operating ranges unless
Automotive (E) TA = -40°C to +125°C, VCC = 4.5V to 5.5V
otherwise noted
Parameter Symbol Min. Max. Units Conditions
SCL and SDA pins:
High-level input voltage VIH 0.7 VCC — V (Note)

Low-level input voltage VIL — 0.3 VCC V (Note)

Hysteresis of Schmitt Trigger VHYS .05 VCC — V VCC  2.5V (Note)
inputs
Low-level output voltage VOL — 0.4 V IOL = 3.0 mA, VCC = 4.5V
IOL = 2.1 mA, VCC = 2.5V
Input leakage current ILI — ±1 A VIN = VCC or VSS
Output leakage current ILO — ±1 A VOUT = VCC or VSS
Pin capacitance (all inputs/outputs) CIN, — 10 pF VCC = 5.0V (Note)
COUT TA = 25°C, FCLK = 1 MHz
Operating current ICC Write — 2 mA VCC = 5.5V, SCL = 400 kHz
ICC Read — 1 mA VCC = 5.5V, SCL = 400 kHz
Standby current ICCS — 1 A VCC = 5.5V, SDA = SCL = VCC
Note: This parameter is periodically sampled and not 100% tested.

FIGURE 1-1: BUS TIMING DATA

THIGH
TF TR

SCL TSU:STA
TLOW THD:DAT TSU:DAT TSU:STO

SDA THD:STA
IN TSP
TBUF
TAA
SDA
OUT

DS21178H-page 2  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00
TABLE 1-2: AC CHARACTERISTICS

All Parameters apply across all

Industrial (I): TA = -40°C to +85°C, VCC = 1.8V to 5.5V
recommended operating ranges
Automotive (E): TA = -40°C to +125°C, VCC = 4.5V to 5.5V
unless otherwise noted
Parameter Symbol Min Max Units Conditions
Clock frequency FCLK — 100 kHz 4.5V Vcc  5.5V (E Temp range)
— 100 1.8V Vcc 4.5V
— 400 4.5V Vcc  5.5V
Clock high time THIGH 4000 — ns 4.5V Vcc  5.5V (E Temp range)
4000 — 1.8V Vcc 4.5V
600 — 4.5V Vcc  5.5V
Clock low time TLOW 4700 — ns 4.5V Vcc  5.5V (E Temp range)
4700 — 1.8V Vcc 4.5V
1300 — 4.5V Vcc  5.5V
SDA and SCL rise time TR — 1000 ns 4.5V Vcc  5.5V (E Temp range)
(Note 1) — 1000 1.8V Vcc 4.5V
— 300 4.5V Vcc  5.5V
SDA and SCL fall time TF — 300 ns (Note 1)
Start condition hold time THD:STA 4000 — ns 4.5V Vcc  5.5V (E Temp range)
4000 — 1.8V Vcc 4.5V
600 — 4.5V Vcc  5.5V
Start condition setup time TSU:STA 4700 — ns 4.5V Vcc  5.5V (E Temp range)
4700 — 1.8V Vcc 4.5V
600 — 4.5V Vcc  5.5V
Data input hold time THD:DAT 0 — ns (Note 2)
Data input setup time TSU:DAT 250 — ns 4.5V Vcc  5.5V (E Temp range)
250 — 1.8V Vcc 4.5V
100 — 4.5V Vcc  5.5V
Stop condition setup time TSU:STO 4000 — ns 4.5V Vcc  5.5V (E Temp range)
4000 — 1.8V Vcc 4.5V
600 — 4.5V Vcc  5.5V
Output valid from clock TAA — 3500 ns 4.5V Vcc  5.5V (E Temp range)
(Note 2) — 3500 1.8V Vcc 4.5V
— 900 4.5V Vcc  5.5V
Bus free time: Time the bus must TBUF 4700 — ns 4.5V Vcc  5.5V (E Temp range)
be free before a new transmis- 4700 — 1.8V Vcc 4.5V
sion can start 1300 — 4.5V Vcc  5.5V
Output fall time from VIH TOF 20+0.1 250 ns (Note 1), CB 100 pF
minimum to VIL maximum CB
Input filter spike suppression TSP — 50 ns (Notes 1, 3)
(SDA and SCL pins)
Write cycle time TWC — 4 ms
Endurance 1M — cycles (Note 4)
Note 1: Not 100% tested. CB = total capacitance of one bus line in pF.
2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions.
3: The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs which provide improved
noise spike suppression. This eliminates the need for a TI specification for standard operation.
4: This parameter is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance™ Model which can be obtained at www.microchip.com.

 1996-2011 Microchip Technology Inc. DS21178H-page 3

24AA00/24LC00/24C00
2.0 PIN DESCRIPTIONS
Pin Function Table
Name PDIP SOIC TSSOP DFN(1) TDFN(1) SOT-23 Description
NC 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 — Not Connected
VSS 4 4 4 4 4 2 Ground
SDA 5 5 5 5 5 3 Serial Address/Data I/O
SCL 6 6 6 6 6 1 Serial Clock
WP 7 7 7 7 7 5 Write-Protect Input
VCC 8 8 8 8 8 4 +1.8V to 5.5V Power Supply
Note 1: The exposed pad on the DFN/TDFN packages can be connected to VSS or left floating.

2.1 SDA Serial Data

This is a bidirectional pin used to transfer addresses
and data into and data out of the device. It is an open
drain terminal, therefore the SDA bus requires a pull-up
resistor to VCC (typical 10 k for 100 kHz, 2 k for
400 kHz).
For normal data transfer SDA is allowed to change only
during SCL low. Changes during SCL high are
reserved for indicating the Start and Stop conditions.

2.2 SCL Serial Clock

This input is used to synchronize the data transfer from
and to the device.

2.3 Noise Protection

The SCL and SDA inputs have Schmitt Trigger and
filter circuits which suppress noise spikes to assure
proper device operation even on a noisy bus.

DS21178H-page 4  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00
3.0 FUNCTIONAL DESCRIPTION 4.0 BUS CHARACTERISTICS
The 24XX00 supports a bidirectional 2-wire bus and The following bus protocol has been defined:
data transmission protocol. A device that sends data • Data transfer may be initiated only when the bus
onto the bus is defined as a transmitter, and a device is not busy.
receiving data as a receiver. The bus has to be
• During data transfer, the data line must remain
controlled by a master device which generates the
stable whenever the clock line is high. Changes in
Serial Clock (SCL), controls the bus access, and
the data line while the clock line is high will be
generates the Start and Stop conditions, while the
interpreted as a Start or Stop condition.
24XX00 works as slave. Both master and slave can
operate as transmitter or receiver, but the master Accordingly, the following bus conditions have been
device determines which mode is activated. defined (Figure 4-1).

4.1 Bus Not Busy (A)

Both data and clock lines remain high.

4.2 Start Data Transfer (B)

A high-to-low transition of the SDA line while the clock
(SCL) is high determines a Start condition. All
commands must be preceded by a Start condition.

4.3 Stop Data Transfer (C)

A low-to-high transition of the SDA line while the clock
(SCL) is high determines a Stop condition. All
operations must be ended with a Stop condition.

4.4 Data Valid (D)

The state of the data line represents valid data when,
after a Start condition, the data line is stable for the
duration of the high period of the clock signal.
The data on the line must be changed during the low
period of the clock signal. There is one bit of data per
clock pulse.
Each data transfer is initiated with a Start condition and
terminated with a Stop condition. The number of the
data bytes transferred between the Start and Stop
conditions is determined by the master device and is
theoretically unlimited.

 1996-2011 Microchip Technology Inc. DS21178H-page 5

24AA00/24LC00/24C00
4.5 Acknowledge The device that acknowledges has to pull down the
SDA line during the Acknowledge clock pulse in such a
Each receiving device, when addressed, is obliged to way that the SDA line is stable low during the high
generate an acknowledge after the reception of each period of the acknowledge related clock pulse. Of
byte. The master device must generate an extra clock course, setup and hold times must be taken into
pulse which is associated with this Acknowledge bit. account. A master must signal an end of data to the
Note: The 24XX00 does not generate any slave by not generating an Acknowledge bit on the last
Acknowledge bits if an internal program- byte that has been clocked out of the slave. In this
ming cycle is in progress. case, the slave must leave the data line high to enable
the master to generate the Stop condition (Figure 4-2).

FIGURE 4-1: DATA TRANSFER SEQUENCE ON THE SERIAL BUS

(A) (B) (C) (D) (C) (A)

SCL

SDA

Start Address or Data Stop

Condition Acknowledge Allowed Condition
Valid to Change

FIGURE 4-2: ACKNOWLEDGE TIMING

Acknowledge
Bit

SCL 1 2 3 4 5 6 7 8 9 1 2 3

SDA Data from transmitter Data from transmitter

Transmitter must release the SDA line at this point Receiver must release the SDA line at this point
allowing the Receiver to pull the SDA line low to so the Transmitter can continue sending data.
acknowledge the previous eight bits of data.

DS21178H-page 6  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00
5.0 DEVICE ADDRESSING
After generating a Start condition, the bus master
transmits a control byte consisting of a slave address
and a Read/Write bit that indicates what type of
operation is to be performed. The slave address for the
24XX00 consists of a 4-bit device code ‘1010’ followed
by three “don’t care” bits.
The last bit of the control byte determines the operation
to be performed. When set to a one a read operation is
selected, and when set to a zero a write operation is
selected (Figure 5-1). The 24XX00 monitors the bus for
its corresponding slave address all the time. It
generates an Acknowledge bit if the slave address was
true and it is not in a programming mode.

FIGURE 5-1: CONTROL BYTE FORMAT

Read/Write Bit

Device Select Don’t Care

Bits Bits

S 1 0 1 0 x x x R/W ACK

Slave Address

Start Bit Acknowledge Bit

 1996-2011 Microchip Technology Inc. DS21178H-page 7

24AA00/24LC00/24C00
6.0 WRITE OPERATIONS condition. This initiates the internal write cycle, and
during this time the 24XX00 will not generate Acknowl-
edge signals (Figure 6-1). After a byte Write command,
6.1 Byte Write
the internal address counter will not be incremented
Following the Start signal from the master, the device and will point to the same address location that was just
code (4 bits), the “don’t care” bits (3 bits), and the R/W written. If a Stop bit is transmitted to the device at any
bit (which is a logic low) are placed onto the bus by the point in the Write command sequence before the entire
master transmitter. This indicates to the addressed sequence is complete, then the command will abort
slave receiver that a byte with a word address will and no data will be written. If more than 8 data bits are
follow after it has generated an Acknowledge bit during transmitted before the Stop bit is sent, then the device
the ninth clock cycle. Therefore, the next byte transmit- will clear the previously loaded byte and begin loading
ted by the master is the word address and will be the data buffer again. If more than one data byte is
written into the Address Pointer of the 24XX00. Only transmitted to the device and a Stop bit is sent before a
the lower four address bits are used by the device, and full eight data bits have been transmitted, then the
the upper four bits are “don’t cares.” The 24XX00 will Write command will abort and no data will be written.
acknowledge the address byte and the master device The 24XX00 employs a VCC threshold detector circuit
will then transmit the data word to be written into the which disables the internal erase/write logic if the VCC
addressed memory location. The 24XX00 acknowl- is below 1.5V (24AA00 and 24LC00) or 3.8V (24C00)
edges again and the master generates a Stop at nominal conditions.

FIGURE 6-1: BYTE WRITE

S
S
T
BUS ACTIVITY Control Word T
MASTER A
Byte Address Data O
R
P
T
SDA LINE S 1 0 1 0 x x x 0 x x x x P

A A A
BUS ACTIVITY C C C
K K K
x = “don’t care” bit

DS21178H-page 8  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00
7.0 ACKNOWLEDGE POLLING FIGURE 7-1: ACKNOWLEDGE
POLLING FLOW
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
Send
complete (this feature can be used to maximize bus
throughput). Once the Stop condition for a Write Write Command
command has been issued from the master, the device
initiates the internally timed write cycle. ACK polling
can be initiated immediately. This involves the master Send Stop
sending a Start condition followed by the control byte Condition to
for a Write command (R/W = 0). If the device is still Initiate Write Cycle
busy with the write cycle, then no ACK will be returned.
If no ACK is returned, then the Start bit and control byte
must be re-sent. If the cycle is complete, then the Send Start
device will return the ACK and the master can then
proceed with the next Read or Write command. See
Figure 7-1 for flow diagram.
Send Control Byte
with R/W = 0

Did Device No
Acknowledge
(ACK = 0)?

Yes

Next
Operation

 1996-2011 Microchip Technology Inc. DS21178H-page 9

24AA00/24LC00/24C00
8.0 READ OPERATIONS After the word address is sent, the master generates a
Start condition following the acknowledge. This termi-
Read operations are initiated in the same way as write nates the write operation, but not before the internal
operations with the exception that the R/W bit of the Address Pointer is set. Then the master issues the
slave address is set to one. There are three basic types control byte again, but with the R/W bit set to a one.
of read operations: current address read, random read The 24XX00 will then issue an acknowledge and trans-
and sequential read. mits the eight bit data word. The master will not
acknowledge the transfer, but does generate a Stop
8.1 Current Address Read condition and the device discontinues transmission
(Figure 8-2). After this command, the internal address
The 24XX00 contains an address counter that main- counter will point to the address location following the
tains the address of the last word accessed, internally one that was just read.
incremented by one. Therefore, if the previous read
access was to address n, the next current address read
operation would access data from address n + 1. Upon
8.3 Sequential Read
receipt of the slave address with the R/W bit set to one, Sequential reads are initiated in the same way as a
the device issues an acknowledge and transmits the random read except that after the device transmits the
eight-bit data word. The master will not acknowledge first data byte, the master issues an acknowledge as
the transfer, but does generate a Stop condition and the opposed to a Stop condition in a random read. This
device discontinues transmission (Figure 8-1). directs the device to transmit the next sequentially
addressed 8-bit word (Figure 8-3).
8.2 Random Read To provide sequential reads the 24XX00 contains an
Random read operations allow the master to access internal Address Pointer which is incremented by one
any memory location in a random manner. To perform at the completion of each read operation. This Address
this type of read operation, first the word address must Pointer allows the entire memory contents to be serially
be set. This is done by sending the word address to the read during one operation.
device as part of a write operation.

FIGURE 8-1: CURRENT ADDRESS READ

S
T S
BUS ACTIVITY A Control T
MASTER R Byte Data O
T P
SDA LINE S 10 10 xxx 1 P
A N
BUS ACTIVITY C O
K
A
C
x = “don’t care” bit K

DS21178H-page 10  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00
FIGURE 8-2: RANDOM READ
S S
T T S
BUS ACTIVITY A Control Word A Control T
MASTER R Byte Address(n) R Byte Data (n) O
T T P
S 10 10xxx 0 x xxx S 10 10xxx 1 P
SDA LINE
A A A N
C C C O
K K K
BUS ACTIVITY A
C
x = “don’t care” bit K

FIGURE 8-3: SEQUENTIAL READ

S
BUS ACTIVITY Control T
MASTER Byte Data n Data n + 1 Data n + 2 Data n + x O
P
SDA LINE P
A A A A N
BUS ACTIVITY C C C C O
K K K K
A
C
K

 1996-2011 Microchip Technology Inc. DS21178H-page 11

24AA00/24LC00/24C00
9.0 PACKAGING INFORMATION

9.1 Package Marking Information

8-Lead PDIP (300 mil) Example:

XXXXXXXX 24LC00
T/XXXNNN I/P e3 13F
YYWW
0527

8-Lead SOIC (3.90 mm) Example:

XXXXXXXT 24LC00I
XXXXYYWW SN e3 0527
NNN 13F

8-Lead TSSOP Example:

XXXX 4L00
TYWW I527
NNN 13F

8-Lead 2x3 DFN Example:

XXX 204
YWW 527
NN 13

8-Lead 2x3 TDFN Example:

XXX A04
YWW 527
NN 13

5-Lead SOT-23 Example:

XXNN M03F

DS21178H-page 12  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00

1st Line Marking Codes

Part Number SOT-23 DFN TDFN

TSSOP
I Temp. E Temp. I Temp. E Temp. I Temp. E Temp.
24AA00 4A00 B0NN — 201 — A01 —
24LC00 4L00 M0NN — 204 — A04 —
24C00 4C00 D0NN E0NN 207 — A07 A08
Note: NN = Alphanumeric traceability code

Legend: XX...X Part number or part number code

T Temperature (I, E)
Y Year code (last digit of calendar year)
YY Year code (last 2 digits of calendar year)
WW Week code (week of January 1 is week ‘01’)
NNN Alphanumeric traceability code (2 characters for small packages)
e3 Pb-free JEDEC designator for Matte Tin (Sn)

Note: For very small packages with no room for the Pb-free JEDEC designator
e3 , the marking will only appear on the outer carton or reel label.

Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.

Note: Please visit www.microchip.com/Pbfree for the latest information on Pb-free conversion.

*Standard OTP marking consists of Microchip part number, year code, week code, and traceability code.

 1996-2011 Microchip Technology Inc. DS21178H-page 13

24AA00/24LC00/24C00

        

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DS21178H-page 14  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00

Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging

 1996-2011 Microchip Technology Inc. DS21178H-page 15

24AA00/24LC00/24C00

Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging

DS21178H-page 16  1996-2011 Microchip Technology Inc.

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 1996-2011 Microchip Technology Inc. DS21178H-page 17

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DS21178H-page 18  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00

Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging

 1996-2011 Microchip Technology Inc. DS21178H-page 19

24AA00/24LC00/24C00

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.32 % '! ("!"*& "&&  (% % '&  " !! 
        * ,-,

DS21178H-page 20  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00

Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging

 1996-2011 Microchip Technology Inc. DS21178H-page 21

24AA00/24LC00/24C00

Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging

DS21178H-page 22  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00

Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging

 1996-2011 Microchip Technology Inc. DS21178H-page 23

24AA00/24LC00/24C00

   ,  $ *-./00%12(,

  3 & ' !&" & 4# *!( !!&    4 %&  &#&
&& 255***'    '5 4

DS21178H-page 24  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00

2    ! (" "!( !(/

  3 & ' !&" & 4# *!( !!&    4 %&  &#&
&& 255***'    '5 4

b
N

E1

1 2 3
e

e1
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A A2 c φ

A1 L

L1

6&! 99. .

'! 9'&! 7 7: ;
7"')  %! 7 
9#&  1,
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:  8 &   = 
 ##4 4!!  < = -
&# %%   = 
:  >#& .  = -
 ##4>#& . - = <
:  9&   = -
3 &9& 9  = ?
3 & & 9 - = <
3 &  R = -R
9# 4!!  < = ?
9#>#& )  = 
  
 '! !#.#  &"#' #%!   & "! ! #%!   & "! !!  &$#''  !#
 '! #&    .0
1,2 1!'!   &$& "! **& "&&  !
        * ,1

 1996-2011 Microchip Technology Inc. DS21178H-page 25

24AA00/24LC00/24C00

Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging

DS21178H-page 26  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00
APPENDIX A: REVISION HISTORY

Revision E
Added DFN package.

Revision F (02/2007)
Revised Device Selection Table; Features Section;
Changed 1.8V to 1.7V; Revised Tables 1-1, 1-2;
Revised Product ID System; Replaced Package
Drawings; Replaced On-line Support page.

Revision G (03/2007)
Replaced Package Drawings (Rev. AM).

Revision H (11/2011)
Added TDFN Package.

 1996-2011 Microchip Technology Inc. DS21178H-page 27

24AA00/24LC00/24C00
NOTES:

DS21178H-page 28  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00
THE MICROCHIP WEB SITE CUSTOMER SUPPORT
Microchip provides online support via our WWW site at Users of Microchip products can receive assistance
www.microchip.com. This web site is used as a means through several channels:
to make files and information easily available to • Distributor or Representative
customers. Accessible by using your favorite Internet
• Local Sales Office
browser, the web site contains the following
information: • Field Application Engineer (FAE)
• Technical Support
• Product Support – Data sheets and errata,
application notes and sample programs, design • Development Systems Information Line
resources, user’s guides and hardware support Customers should contact their distributor,
documents, latest software releases and archived representative or field application engineer (FAE) for
software support. Local sales offices are also available to help
• General Technical Support – Frequently Asked customers. A listing of sales offices and locations is
Questions (FAQ), technical support requests, included in the back of this document.
online discussion groups, Microchip consultant Technical support is available through the web site
program member listing at: http://microchip.com/support
• Business of Microchip – Product selector and
ordering guides, latest Microchip press releases,
listing of seminars and events, listings of
Microchip sales offices, distributors and factory
representatives

CUSTOMER CHANGE NOTIFICATION

SERVICE
Microchip’s customer notification service helps keep
customers current on Microchip products. Subscribers
will receive e-mail notification whenever there are
changes, updates, revisions or errata related to a
specified product family or development tool of interest.
To register, access the Microchip web site at
www.microchip.com. Under “Support”, click on
“Customer Change Notification” and follow the
registration instructions.

 1996-2011 Microchip Technology Inc. DS21178H-page 29

24AA00/24LC00/24C00
READER RESPONSE
It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip
product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our
documentation can better serve you, please FAX your comments to the Technical Publications Manager at
(480) 792-4150.
Please list the following information, and use this outline to provide us with your comments about this document.

TO: Technical Publications Manager Total Pages Sent ________

RE: Reader Response

From: Name
Company
Address
City / State / ZIP / Country
Telephone: (_______) _________ - _________ FAX: (______) _________ - _________
Application (optional):
Would you like a reply? Y N

Device: 24AA00/24LC00/24C00 Literature Number: DS21178H

Questions:

1. What are the best features of this document?

2. How does this document meet your hardware and software development needs?

3. Do you find the organization of this document easy to follow? If not, why?

4. What additions to the document do you think would enhance the structure and subject?

5. What deletions from the document could be made without affecting the overall usefulness?

6. Is there any incorrect or misleading information (what and where)?

7. How would you improve this document?

DS21178H-page 30  1996-2011 Microchip Technology Inc.

 24AA00/24LC00/24C00
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.

PART NO. X /XX

Examples:
Device Temperature Package a) 24AA00-I/P: Industrial Temperature,1.8V
Range PDIP package
b) 24AA00-I/SN: Industrial Temperature,
Device: 24AA00: = 1.8V, 128 bit I2C™ Serial EEPROM 1.8V, SOIC package
24AA00T: = 1.8V, 128 bit I2C Serial EEPROM c) 24AA00T-I/OT: Industrial Temperature,
(Tape and Reel) 1.8V, SOT-23 package, tape and reel
24LC00: = 2.5V, 128 bit I2C Serial EEPROM d) 24LC00-I/P: Industrial Temperature,
24LC00T: = 2.5V, 128 bit I2C Serial EEPROM 2.5V, PDIP package
(Tape and Reel) e) 24C00-E/SN: Extended Temperature,
24C00: = 5V, 128 bit I2C™ Serial EEPROM 5V, SOIC package
24C00T: = 5V, 128 bit I2C™ Serial EEPROM
f) 24LC00T-I/OT: Industrial Temperature,
(Tape and Reel)
2.5V, SOT-23 package, tape and reel
g) 24C00T-I/MNY: Industrial Temperature,
Temperature I = -40°C to +85°C 5V, TDFN pacakge
Range: E = -40°C to +125°C

Package: P = Plastic DIP (300 mil body), 8-lead

SN = Plastic SOIC (3.90 mm body), 8-lead
ST = Plastic TSSOP (4.4 mm), 8-lead
OT = Plastic SOT-23, 5-lead (Tape and Reel only)
MC = Plastic DFN (2x3x0.9 mm body), 8-lead
MNY(1) = Plastic TDFN, (2x3x0.75 mm body), 8-lead
(Tape and Reel only)

Note 1: "Y" indicates a Nickel Palladium Gold (NiPdAu) finish.

 1996-2011 Microchip Technology Inc. DS21178H-page31

24AA00/24LC00/24C00
NOTES:

DS21178H-page 32  1996-2011 Microchip Technology Inc.

Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device Trademarks

applications and the like is provided only for your convenience
The Microchip name and logo, the Microchip logo, dsPIC,
and may be superseded by updates. It is your responsibility to
KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
ensure that your application meets with your specifications.
PIC32 logo, rfPIC and UNI/O are registered trademarks of
MICROCHIP MAKES NO REPRESENTATIONS OR
Microchip Technology Incorporated in the U.S.A. and other
WARRANTIES OF ANY KIND WHETHER EXPRESS OR countries.
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION, FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
INCLUDING BUT NOT LIMITED TO ITS CONDITION, MXDEV, MXLAB, SEEVAL and The Embedded Control
QUALITY, PERFORMANCE, MERCHANTABILITY OR Solutions Company are registered trademarks of Microchip
FITNESS FOR PURPOSE. Microchip disclaims all liability Technology Incorporated in the U.S.A.
arising from this information and its use. Use of Microchip Analog-for-the-Digital Age, Application Maestro, chipKIT,
devices in life support and/or safety applications is entirely at chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,
the buyer’s risk, and the buyer agrees to defend, indemnify and dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,
hold harmless Microchip from any and all damages, claims, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,
suits, or expenses resulting from such use. No licenses are Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,
conveyed, implicitly or otherwise, under any Microchip MPLINK, mTouch, Omniscient Code Generation, PICC,
intellectual property rights. PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE,
rfLAB, Select Mode, Total Endurance, TSHARC,
UniWinDriver, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 1996-2011, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
Printed on recycled paper.

ISBN: 978-1-61341-767-6

Microchip received ISO/TS-16949:2009 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.

 1996-2011 Microchip Technology Inc. DS21178H-page 33

 Worldwide Sales and Service
AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE
Corporate Office Asia Pacific Office India - Bangalore Austria - Wels
2355 West Chandler Blvd. Suites 3707-14, 37th Floor Tel: 91-80-3090-4444 Tel: 43-7242-2244-39
Chandler, AZ 85224-6199 Tower 6, The Gateway Fax: 91-80-3090-4123 Fax: 43-7242-2244-393
Tel: 480-792-7200 Harbour City, Kowloon Denmark - Copenhagen
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Fax: 480-792-7277 Hong Kong Tel: 45-4450-2828
Tel: 91-11-4160-8631
Technical Support: Tel: 852-2401-1200 Fax: 45-4485-2829
Fax: 91-11-4160-8632
http://www.microchip.com/ Fax: 852-2401-3431
India - Pune France - Paris
support
Australia - Sydney Tel: 91-20-2566-1512 Tel: 33-1-69-53-63-20
Web Address:
Tel: 61-2-9868-6733 Fax: 91-20-2566-1513 Fax: 33-1-69-30-90-79
www.microchip.com
Fax: 61-2-9868-6755 Germany - Munich
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China - Beijing Tel: 49-89-627-144-0
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Tel: 86-10-8569-7000 Fax: 49-89-627-144-44
Tel: 678-957-9614 Fax: 81-45-471-6122
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Tel: 86-28-8665-5511 Fax: 39-0331-466781
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Tel: 774-760-0087 Korea - Seoul
Fax: 774-760-0088 China - Chongqing Tel: 82-2-554-7200 Tel: 31-416-690399
Tel: 86-23-8980-9588 Fax: 82-2-558-5932 or Fax: 31-416-690340
Chicago
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Cleveland Fax: 86-571-2819-3189 Fax: 60-3-6201-9859 UK - Wokingham
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Malaysia - Penang
Tel: 216-447-0464 Tel: 852-2401-1200 Fax: 44-118-921-5820
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Detroit Tel: 86-532-8502-7355 Tel: 65-6334-8870
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Tel: 248-538-2250
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Tel: 86-21-5407-5533 Tel: 886-3-5778-366
Indianapolis Fax: 86-21-5407-5066 Fax: 886-3-5770-955
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Tel: 317-773-8323 China - Shenyang Taiwan - Kaohsiung
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Fax: 86-24-2334-2393 Fax: 886-7-330-9305
Los Angeles
Mission Viejo, CA China - Shenzhen Taiwan - Taipei
Tel: 949-462-9523 Tel: 86-755-8203-2660 Tel: 886-2-2500-6610
Fax: 949-462-9608 Fax: 86-755-8203-1760 Fax: 886-2-2508-0102

Santa Clara China - Wuhan Thailand - Bangkok

Santa Clara, CA Tel: 86-27-5980-5300 Tel: 66-2-694-1351
Tel: 408-961-6444 Fax: 86-27-5980-5118 Fax: 66-2-694-1350
Fax: 408-961-6445 China - Xian
Toronto Tel: 86-29-8833-7252
Mississauga, Ontario, Fax: 86-29-8833-7256
Canada China - Xiamen
Tel: 905-673-0699 Tel: 86-592-2388138
Fax: 905-673-6509 Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
08/02/11
Fax: 86-756-3210049

DS21178H-page 34  1996-2011 Microchip Technology Inc.