Features

• Low-voltage and Standard-voltage Operation

– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
• Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K),
1024 x 8 (8K) or 2048 x 8 (16K)
• 2-wire Serial Interface
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• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bi-directional Data Transfer Protocol
• 100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Compatibility
• Write Protect Pin for Hardware Data Protection
• 8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write Modes
2-wire
• Partial Page Writes are Allowed
• Self-timed Write Cycle (10 ms max)
Serial EEPROM
• High-reliability
– Endurance: 1 Million Write Cycles 1K (128 x 8)
– Data Retention: 100 Years
• Automotive Grade, Extended Temperature and Lead-Free Devices Available 2K (256 x 8)
• 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP and 8-lead TSSOP Packages
4K (512 x 8)
Description 8K (1024 x 8)
The AT24C01A/02/04/08/16 provides 1024/2048/4096/8192/16384 bits of serial elec-
trically erasable and programmable read-only memory (EEPROM) organized as 16K (2048 x 8)
128/256/512/1024/2048 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low-power and low-voltage operation
are essential. The AT24C01A/02/04/08/16 is available in space-saving 8-lead PDIP,
8-lead JEDEC SOIC, 8-lead MAP and 8-lead TSSOP packages and is accessed via a
AT24C01A
2-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V)
and 1.8V (1.8V to 5.5V) versions.
AT24C02
AT24C04
Pin Configurations 8-lead TSSOP

Pin Name Function

AT24C08
A0 1 8 VCC
A0 - A2 Address Inputs A1 2 7 WP AT24C16
A2 3 6 SCL
SDA Serial Data GND 4 5 SDA
SCL Serial Clock Input
WP Write Protect 8-lead MAP
NC No Connect VCC 8 1 A0
WP 7 2 A1
SCL 6 3 A2
SDA 5 4 GND

Bottom View

8-lead PDIP 8-lead SOIC

A0 1 8 VCC A0 1 8 VCC
A1 2 7 WP A1 2 7 WP
A2 3 6 SCL A2 3 6 SCL
GND 4 5 SDA GND 4 5 SDA

Rev. 0180K–SEEPR–01/03

1
 Absolute Maximum Ratings
Operating Temperature.................................. -55°C to +125°C *NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
Storage Temperature ..................................... -65°C to +150°C age to the device. This is a stress rating only and
functional operation of the device at these or any
Voltage on Any Pin
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other conditions beyond those indicated in the
with Respect to Ground .....................................-1.0V to +7.0V operational sections of this specification is not
implied. Exposure to absolute maximum rating
Maximum Operating Voltage .......................................... 6.25V conditions for extended periods may affect
device reliability.
DC Output Current........................................................ 5.0 mA

Block Diagram

2 AT24C01A/02/04/08/16
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 AT24C01A/02/04/08/16

Pin Description SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into each
EEPROM device and negative edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bi-directional for serial data transfer. This pin is
open-drain driven and may be wire-ORed with any number of other open-drain or open-
collector devices.
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DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1 and A0 pins are device
address inputs that are hard wired for the AT24C01A and the AT24C02. As many as
eight 1K/2K devices may be addressed on a single bus system (device addressing is
discussed in detail under the Device Addressing section).
The AT24C04 uses the A2 and A1 inputs for hard wire addressing and a total of four 4K
devices may be addressed on a single bus system. The A0 pin is a no connect.
The AT24C08 only uses the A2 input for hardwire addressing and a total of two 8K
devices may be addressed on a single bus system. The A0 and A1 pins are no
connects.
The AT24C16 does not use the device address pins, which limits the number of devices
on a single bus to one. The A0, A1 and A2 pins are no connects.
WRITE PROTECT (WP): The AT24C01A/02/04/16 has a Write Protect pin that provides
hardware data protection. The Write Protect pin allows normal read/write operations
when connected to ground (GND). When the Write Protect pin is connected to VCC, the
write protection feature is enabled and operates as shown in the following table.

Part of the Array Protected

WP Pin
Status 24C01A 24C02 24C04 24C08 24C16

Normal Upper
Full (1K) Full (2K) Full (4K) Read/ Half
At VCC
Array Array Array Write (8K)
Operation Array

At GND Normal Read/Write Operations

Memory Organization AT24C01A, 1K SERIAL EEPROM: Internally organized with 16 pages of 8 bytes each,
the 1K requires a 7-bit data word address for random word addressing.
AT24C02, 2K SERIAL EEPROM: Internally organized with 32 pages of 8 bytes each,
the 2K requires an 8-bit data word address for random word addressing.
AT24C04, 4K SERIAL EEPROM: Internally organized with 32 pages of 16 bytes each,
the 4K requires a 9-bit data word address for random word addressing.
AT24C08, 8K SERIAL EEPROM: Internally organized with 64 pages of 16 bytes each,
the 8K requires a 10-bit data word address for random word addressing.
AT24C16, 16K SERIAL EEPROM: Internally organized with 128 pages of 16 bytes
each, the 16K requires an 11-bit data word address for random word addressing.

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0180K–SEEPR–01/03
 Pin Capacitance(1)
Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +1.8V.
Symbol Test Condition Max Units Conditions
CI/O Input/Output Capacitance (SDA) 8 pF VI/O = 0V
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CIN Input Capacitance (A0, A1, A2, SCL) 6 pF VIN = 0V
Note: 1. This parameter is characterized and is not 100% tested.

DC Characteristics
Applicable over recommended operating range from: TAI = -40°C to +85°C, VCC = +1.8V to +5.5V, TAE = -40°C to +125°C,
VCC = +1.8V to +5.5V (unless otherwise noted).
Symbol Parameter Test Condition Min Typ Max Units
VCC1 Supply Voltage 1.8 5.5 V
VCC2 Supply Voltage 2.5 5.5 V
VCC3 Supply Voltage 2.7 5.5 V
VCC4 Supply Voltage 4.5 5.5 V
ICC Supply Current VCC = 5.0V READ at 100 kHz 0.4 1.0 mA
ICC Supply Current VCC = 5.0V WRITE at 100 kHz 2.0 3.0 mA
ISB1 Standby Current VCC = 1.8V VIN = VCC or VSS 0.6 3.0 µA
ISB2 Standby Current VCC = 2.5V VIN = VCC or VSS 1.4 4.0 µA
ISB3 Standby Current VCC = 2.7V VIN = VCC or VSS 1.6 4.0 µA
ISB4 Standby Current VCC = 5.0V VIN = VCC or VSS 8.0 18.0 µA
ILI Input Leakage Current VIN = VCC or VSS 0.10 3.0 µA
ILO Output Leakage Current VOUT = VCC or VSS 0.05 3.0 µA
(1)
VIL Input Low Level -0.6 VCC x 0.3 V
VIH Input High Level(1) VCC x 0.7 VCC + 0.5 V
VOL2 Output Low Level VCC = 3.0V IOL = 2.1 mA 0.4 V
VOL1 Output Low Level VCC = 1.8V IOL = 0.15 mA 0.2 V
Note: 1. VIL min and VIH max are reference only and are not tested.

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 AT24C01A/02/04/08/16

AC Characteristics
Applicable over recommended operating range from TAI = -40°C to +85°C, TAE = -40°C to +125°C, VCC = +1.8V to +5.5V,
CL = 1 TTL Gate and 100 pF (unless otherwise noted).
2.7-, 2.5-, 1.8-volt 5.0-volt
Symbol
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Parameter Min Max Min Max Units
fSCL Clock Frequency, SCL 100 400 kHz
tLOW Clock Pulse Width Low 4.7 1.2 µs
tHIGH Clock Pulse Width High 4.0 0.6 µs
tI Noise Suppression Time(1) 100 50 ns
tAA Clock Low to Data Out Valid 0.1 4.5 0.1 0.9 µs
tBUF Time the bus must be free before 4.7 1.2 µs
a new transmission can start(1)
tHD.STA Start Hold Time 4.0 0.6 µs
tSU.STA Start Setup Time 4.7 0.6 µs
tHD.DAT Data In Hold Time 0 0 µs
tSU.DAT Data In Setup Time 200 100 ns
(1)
tR Inputs Rise Time 1.0 0.3 µs
tF Inputs Fall Time(1) 300 300 ns
tSU.STO Stop Setup Time 4.7 0.6 µs
tDH Data Out Hold Time 100 50 ns
tWR Write Cycle Time 10 10 ms
Endurance(1) 5.0V, 25°C, Byte Mode 1M 1M Write
Cycles
Note: 1. This parameter is characterized and is not 100% tested.

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0180K–SEEPR–01/03
 Device Operation CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an exter-
nal device. Data on the SDA pin may change only during SCL low time periods (refer to
Data Validity timing diagram). Data changes during SCL high periods will indicate a start
or stop condition as defined below.
START CONDITION: A high-to-low transition of SDA with SCL high is a start condition
www.datasheet4u.com which must precede any other command (refer to Start and Stop Definition timing
diagram).
STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition.
After a read sequence, the stop command will place the EEPROM in a standby power
mode (refer to Start and Stop Definition timing diagram).
ACKNOWLEDGE: All addresses and data words are serially transmitted to and from
the EEPROM in 8-bit words. The EEPROM sends a zero to acknowledge that it has
received each word. This happens during the ninth clock cycle.
STANDBY MODE: The AT24C01A/02/04/08/16 features a low-power standby mode
which is enabled: (a) upon power-up and (b) after the receipt of the STOP bit and the
completion of any internal operations.
MEMORY RESET: After an interruption in protocol, power loss or system reset, any 2-
wire part can be reset by following these steps:
1. Clock up to 9 cycles.
2. Look for SDA high in each cycle while SCL is high.
3. Create a start condition.

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 AT24C01A/02/04/08/16

Bus Timing

SCL: Serial Clock, SDA: Serial Data I/O

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Write Cycle Timing

SCL: Serial Clock, SDA: Serial Data I/O

tWR(1)

Note: 1. The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the internal clear/write cycle.

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0180K–SEEPR–01/03
 Data Validity

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Start and Stop Definition

Output Acknowledge

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 AT24C01A/02/04/08/16

Device Addressing The 1K, 2K, 4K, 8K and 16K EEPROM devices all require an 8-bit device address word
following a start condition to enable the chip for a read or write operation (refer to Figure
1).
The device address word consists of a mandatory one, zero sequence for the first four
most significant bits as shown. This is common to all the EEPROM devices.
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The next 3 bits are the A2, A1 and A0 device address bits for the 1K/2K EEPROM.
These 3 bits must compare to their corresponding hard-wired input pins.
The 4K EEPROM only uses the A2 and A1 device address bits with the third bit being a
memory page address bit. The two device address bits must compare to their corre-
sponding hard-wired input pins. The A0 pin is no connect.
The 8K EEPROM only uses the A2 device address bit with the next 2 bits being for
memory page addressing. The A2 bit must compare to its corresponding hard-wired
input pin. The A1 and A0 pins are no connect.
The 16K does not use any device address bits but instead the 3 bits are used for mem-
ory page addressing. These page addressing bits on the 4K, 8K and 16K devices
should be considered the most significant bits of the data word address which follows.
The A0, A1 and A2 pins are no connect.
The eighth bit of the device address is the read/write operation select bit. A read opera-
tion is initiated if this bit is high and a write operation is initiated if this bit is low.
Upon a compare of the device address, the EEPROM will output a zero. If a compare is
not made, the chip will return to a standby state.

Write Operations BYTE WRITE: A write operation requires an 8-bit data word address following the
device address word and acknowledgment. Upon receipt of this address, the EEPROM
will again respond with a zero and then clock in the first 8-bit data word. Following
receipt of the 8-bit data word, the EEPROM will output a zero and the addressing
device, such as a microcontroller, must terminate the write sequence with a stop condi-
tion. At this time the EEPROM enters an internally timed write cycle, t WR , to the
nonvolatile memory. All inputs are disabled during this write cycle and the EEPROM will
not respond until the write is complete (refer to Figure 2).
PAGE WRITE: The 1K/2K EEPROM is capable of an 8-byte page write, and the 4K, 8K
and 16K devices are capable of 16-byte page writes.
A page write is initiated the same as a byte write, but the microcontroller does not send
a stop condition after the first data word is clocked in. Instead, after the EEPROM
acknowledges receipt of the first data word, the microcontroller can transmit up to seven
(1K/2K) or fifteen (4K, 8K, 16K) more data words. The EEPROM will respond with a zero
after each data word received. The microcontroller must terminate the page write
sequence with a stop condition (refer to Figure 3).
The data word address lower three (1K/2K) or four (4K, 8K, 16K) bits are internally
incremented following the receipt of each data word. The higher data word address bits
are not incremented, retaining the memory page row location. When the word address,
internally generated, reaches the page boundary, the following byte is placed at the
beginning of the same page. If more than eight (1K/2K) or sixteen (4K, 8K, 16K) data
words are transmitted to the EEPROM, the data word address will “roll over” and previ-
ous data will be overwritten.

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0180K–SEEPR–01/03
 ACKNOWLEDGE POLLING: Once the internally timed write cycle has started and the
EEPROM inputs are disabled, acknowledge polling can be initiated. This involves sending a
start condition followed by the device address word. The read/write bit is representative of the
operation desired. Only if the internal write cycle has completed will the EEPROM respond
with a zero allowing the read or write sequence to continue.

www.datasheet4u.com
Read Read operations are initiated the same way as write operations with the exception that the
read/write select bit in the device address word is set to one. There are three read operations:
Operations
current address read, random address read and sequential read.
CURRENT ADDRESS READ: The internal data word address counter maintains the last
address accessed during the last read or write operation, incremented by one. This address
stays valid between operations as long as the chip power is maintained. The address “roll
over” during read is from the last byte of the last memory page to the first byte of the first page.
The address “roll over” during write is from the last byte of the current page to the first byte of
the same page.
Once the device address with the read/write select bit set to one is clocked in and acknowl-
edged by the EEPROM, the current address data word is serially clocked out. The
microcontroller does not respond with an input zero but does generate a following stop condi-
tion (refer to Figure 4).
RANDOM READ: A random read requires a “dummy” byte write sequence to load in the data
word address. Once the device address word and data word address are clocked in and
acknowledged by the EEPROM, the microcontroller must generate another start condition.
The microcontroller now initiates a current address read by sending a device address with the
read/write select bit high. The EEPROM acknowledges the device address and serially clocks
out the data word. The microcontroller does not respond with a zero but does generate a fol-
lowing stop condition (refer to Figure 5).
SEQUENTIAL READ: Sequential reads are initiated by either a current address read or a ran-
dom address read. After the microcontroller receives a data word, it responds with an
acknowledge. As long as the EEPROM receives an acknowledge, it will continue to increment
the data word address and serially clock out sequential data words. When the memory
address limit is reached, the data word address will “roll over” and the sequential read will con-
tinue. The sequential read operation is terminated when the microcontroller does not respond
with a zero but does generate a following stop condition (refer to Figure 6).

10 AT24C01A/02/04/08/16
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 AT24C01A/02/04/08/16

Figure 1. Device Address

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Figure 2. Byte Write

Figure 3. Page Write

(* = DON’T CARE bit for 1K)

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0180K–SEEPR–01/03
 Figure 4. Current Address Read

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Figure 5. Random Read

(* = DON’T CARE bit for 1K)

Figure 6. Sequential Read

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 AT24C01A/02/04/08/16

AT24C01A Ordering Information

Ordering Code Package Operation Range
AT24C01A-10PI-2.7 8P3 Industrial
AT24C01A-10SI-2.7 8S1 (-40°C to 85°C)
AT24C01A-10TI-2.7 8A2
AT24C01AY1-10YI-2.7
www.datasheet4u.com 8Y1
AT24C01A-10PI-1.8 8P3 Industrial
AT24C01A-10SI-1.8 8S1 (-40°C to 85°C)
AT24C01A-10TI-1.8 8A2
AT24C01AY1-10YI-1.8 8Y1
AT24C01A-10SJ-2.7 8S1 Lead-Free/Industrial Temperature
AT24C01A-10SJ-1.8 8S1 (-40°C to 85°C)
AT24C01A-10SE-2.7 8S1 High Grade/Extended Temp
(-40°C to 125°C)
Note: For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristics table.

Package Type
8P3 8-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8A2 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
8Y1 8-lead, 4.90 mm x 3.00 mm Body, Dual Footprint, Non-leaded, Miniature Array Package (MAP)
Options
-2.7 Low-voltage (2.7V to 5.5V)
-1.8 Low-voltage (1.8V to 5.5V)

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0180K–SEEPR–01/03
 AT24C02 Ordering Information
Ordering Code Package Operation Range
AT24C02-10PI-2.7 8P3 Industrial
AT24C02N-10SI-2.7 8S1 (-40°C to 85°C)
AT24C02-10TI-2.7
www.datasheet4u.com 8A2
AT24C02Y1-10YI-2.7 8Y1
AT24C02-10PI-1.8 8P3 Industrial
AT24C02N-10SI-1.8 8S1 (-40°C to 85°C)
AT24C02-10TI-1.8 8A2
AT24C02Y1-10YI-1.8 8Y1
AT24C02N-10SJ-2.7 8S1 Lead-Free/Industrial Temperature
AT24C02N-10SJ-1.8 8S1 (-40°C to 85°C)
AT24C02N-10SE-2.7 8S1 High Grade/Extended Temp
(-40°C to 125°C)
Note: For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristics table.

Package Type
8P3 8-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8A2 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
8Y1 8-lead, 4.90 mm x 3.00 mm Body, Dual Footprint, Non-leaded, Miniature Array Package (MAP)
Options
-2.7 Low-voltage (2.7V to 5.5V)
-1.8 Low-voltage (1.8V to 5.5V)

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 AT24C01A/02/04/08/16

AT24C04 Ordering Information

Ordering Code Package Operation Range
AT24C04-10PI-2.7 8P3 Industrial
AT24C04N-10SI-2.7 8S1 (-40°C to 85°C)
AT24C04-10TI-2.7
www.datasheet4u.com 8A2
AT24C04Y1-10YI-2.7 8Y1
AT24C04-10PI-1.8 8P3 Industrial
AT24C04N-10SI-1.8 8S1 (-40°C to 85°C)
AT24C04-10TI-1.8 8A2
AT24C04Y1-10YI-1.8 8Y1
AT24C04N-10SJ-2.7 8S1 Lead-Free/Industrial Temperature
AT24C04N-10SJ-1.8 8S1 (-40°C to 85°C)
AT24C04N-10SE-2.7 8S1 High Grade/Extended Temp
(-40°C to 125°C)
Note: For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristics table.

Package Type
8P3 8-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8A2 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
8Y1 8-lead, 4.90 mm x 3.00 mm Body, Dual Footprint, Non-leaded, Miniature Array Package (MAP)
Options
-2.7 Low-voltage (2.7V to 5.5V)
-1.8 Low-voltage (1.8V to 5.5V)

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0180K–SEEPR–01/03
 AT24C08 Ordering Information
Ordering Code Package Operation Range
AT24C08-10PI-2.7 8P3 Industrial
AT24C08N-10SI-2.7 8S1 (-40°C to 85°C)
AT24C08-10TI-2.7
www.datasheet4u.com 8A2
AT24C08-10PI-1.8 8P3 Industrial
AT24C08N-10SI-1.8 8S1 (-40°C to 85°C)
AT24C08-10TI-1.8 8A2
Note: For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristics table.

Package Type
8P3 8-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8A2 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
Options
-2.7 Low-voltage (2.7V to 5.5V)
-1.8 Low-voltage (1.8V to 5.5V)

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 AT24C01A/02/04/08/16

AT24C16 Ordering Information

Ordering Code Package Operation Range
AT24C16-10PI-2.7 8P3 Industrial
AT24C16N-10SI-2.7 8S1 (-40°C to 85°C)
AT24C16-10TI-2.7
www.datasheet4u.com 8A2
AT24C16-10PI-1.8 8P3 Industrial
AT24C16N-10SI-1.8 8S1 (-40°C to 85°C)
AT24C16-10TI-1.8 8A2
Note: For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristics table.

Package Type
8P3 8-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8A2 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
Options
-2.7 Low-voltage (2.7V to 5.5V)
-1.8 Low-voltage (1.8V to 5.5V)

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0180K–SEEPR–01/03
 Packaging Information

8P3 – PDIP

www.datasheet4u.com
1
E

E1

Top View c
eA

End View

COMMON DIMENSIONS
D (Unit of Measure = inches)
e
D1 SYMBOL MIN NOM MAX NOTE
A2 A
A 0.210 2
A2 0.115 0.130 0.195
b 0.014 0.018 0.022 5
b2 0.045 0.060 0.070 6
b3 0.030 0.039 0.045 6
c 0.008 0.010 0.014
D 0.355 0.365 0.400 3
b2 L D1 0.005 3
b3 E 0.300 0.310 0.325 4
4 PLCS b E1 0.240 0.250 0.280 3
e 0.100 BSC
Side View
eA 0.300 BSC 4
L 0.115 0.130 0.150 2

Notes: 1. This drawing is for general information only; refer to JEDEC Drawing MS-001, Variation BA for additional information.
2. Dimensions A and L are measured with the package seated in JEDEC seating plane Gauge GS-3.
3. D, D1 and E1 dimensions do not include mold Flash or protrusions. Mold Flash or protrusions shall not exceed 0.010 inch.
4. E and eA measured with the leads constrained to be perpendicular to datum.
5. Pointed or rounded lead tips are preferred to ease insertion.
6. b2 and b3 maximum dimensions do not include Dambar protrusions. Dambar protrusions shall not exceed 0.010 (0.25 mm).
01/09/02
TITLE DRAWING NO. REV.
2325 Orchard Parkway 8P3, 8-lead, 0.300" Wide Body, Plastic Dual
8P3 B
R San Jose, CA 95131 In-line Package (PDIP)

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 AT24C01A/02/04/08/16

8S1 – JEDEC SOIC

3 2 1

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Top View

e B
A

D COMMON DIMENSIONS
(Unit of Measure = mm)
Side View
SYMBOL MIN NOM MAX NOTE
A – – 1.75
A2 B – – 0.51

C C – – 0.25
D – – 5.00
E – – 4.00
L e 1.27 BSC
E H – – 6.20

End View L – – 1.27

Note: This drawing is for general information only. Refer to JEDEC Drawing MS-012 for proper dimensions, tolerances, datums, etc.

10/10/01
TITLE DRAWING NO. REV.
2325 Orchard Parkway 8S1, 8-lead (0.150" Wide Body), Plastic Gull Wing
8S1 A
R San Jose, CA 95131 Small Outline (JEDEC SOIC)

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0180K–SEEPR–01/03
 8A2 – TSSOP

3 2 1

www.datasheet4u.com

Pin 1 indicator
this corner

E1 E

L1

N
L
Top View End View
COMMON DIMENSIONS
(Unit of Measure = mm)

SYMBOL MIN NOM MAX NOTE

A D 2.90 3.00 3.10 2, 5

b E 6.40 BSC
E1 4.30 4.40 4.50 3, 5
A – – 1.20

e A2 A2 0.80 1.00 1.05

b 0.19 – 0.30 4
D
e 0.65 BSC
Side View L 0.45 0.60 0.75
L1 1.00 REF

Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing MO-153, Variation AA, for proper dimensions, tolerances,
datums, etc.
2. Dimension D does not include mold Flash, protrusions or gate burrs. Mold Flash, protrusions and gate burrs shall not exceed
0.15 mm (0.006 in) per side.
3. Dimension E1 does not include inter-lead Flash or protrusions. Inter-lead Flash and protrusions shall not exceed 0.25 mm
(0.010 in) per side.
4. Dimension b does not include Dambar protrusion. Allowable Dambar protrusion shall be 0.08 mm total in excess of the
b dimension at maximum material condition. Dambar cannot be located on the lower radius of the foot. Minimum space between
protrusion and adjacent lead is 0.07 mm.
5. Dimension D and E1 to be determined at Datum Plane H. 5/30/02
TITLE DRAWING NO. REV.
2325 Orchard Parkway 8A2, 8-lead, 4.4 mm Body, Plastic
8A2 B
R San Jose, CA 95131 Thin Shrink Small Outline Package (TSSOP)

20 AT24C01A/02/04/08/16
0180K–SEEPR–01/03
 AT24C01A/02/04/08/16

8Y1 – MAP

PIN 1 INDEX AREA

www.datasheet4u.com
A

1 2 3 4

PIN 1 INDEX AREA

E1

D D1

8 7 6 5

A1 b e
E

A
COMMON DIMENSIONS
(Unit of Measure = mm)

SYMBOL MIN NOM MAX NOTE

A – – 0.90
A1 0.00 – 0.05
D 4.70 4.90 5.10
E 2.80 3.00 3.20
D1 0.85 1.00 1.15
E1 0.85 1.00 1.15
b 0.25 0.30 0.35
e 0.65 TYP
L 0.50 0.60 0.70

7/25/02
TITLE DRAWING NO. REV.
2325 Orchard Parkway 8Y1, 8-lead (4.90 x 3.00 mm Body) MSOP Array Package
San Jose, CA 95131 8Y1 B
R
(MAP) Y1

21
0180K–SEEPR–01/03
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