MC14514B, MC14515B

4-Bit Transparent
Latch/4-to-16 Line Decoder
The MC14514B and MC14515B are two output options of a 4 to 16
line decoder with latched inputs. The MC14514B (output active high
option) presents a logical “1” at the selected output, whereas the
MC14515B (output active low option) presents a logical “0” at the http://onsemi.com
selected output. The latches are R–S type flip–flops which hold the
last input data presented prior to the strobe transition from “1” to “0”.
These high and low options of a 4–bit latch/4 to 16 line decoder are
constructed with N–channel and P–channel enhancement mode
devices in a single monolithic structure. The latches are R–S type MARKING
flip–flops and data is admitted upon a signal incident at the strobe 24 DIAGRAMS
input, decoded, and presented at the output.
These complementary circuits find primary use in decoding PDIP–24
MC145xxBCP
applications where low power dissipation and/or high noise immunity P SUFFIX
AWLYYWW
CASE 709
is desired.
• Supply Voltage Range = 3.0 Vdc to 18 Vdc 1
• Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range

MAXIMUM RATINGS (Voltages Referenced to VSS) (Note 1.) 24

Symbol Parameter Value Unit SOIC–24 145xxB

VDD DC Supply Voltage Range –0.5 to +18.0 V DW SUFFIX AWLYYWW
CASE 751E
Vin, Vout Input or Output Voltage Range –0.5 to VDD + 0.5 V
(DC or Transient) 1

Iin, Iout Input or Output Current ±10 mA

(DC or Transient) per Pin xx = Specific Device Code
A = Assembly Location
PD Power Dissipation, 500 mW WL, L = Wafer Lot
per Package (Note 2.) YY, Y = Year
WW, W = Work Week
TA Ambient Temperature Range –55 to +125 °C
Tstg Storage Temperature Range –65 to +150 °C
TL Lead Temperature 260 °C ORDERING INFORMATION
(8–Second Soldering)
Device Package Shipping
1. Maximum Ratings are those values beyond which damage to the device
may occur. MC14514BCP PDIP–24 15/Rail
2. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/
C From 65
C To 125
C MC14514BDW SOIC–24 30/Rail

This device contains protection circuitry to guard against damage due to high MC14514BDWR2 SOIC–24 1000/Tape & Reel
static voltages or electric fields. However, precautions must be taken to avoid
applications of any voltage higher than maximum rated voltages to this MC14515BCP PDIP–24 15/Rail
high–impedance circuit. For proper operation, Vin and Vout should be constrained
MC14515BDW SOIC–24 30/Rail
to the range VSS
(Vin or Vout)
VDD.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., MC14515BDWR2 SOIC–24 1000/Tape & Reel
either VSS or VDD). Unused outputs must be left open.

 Semiconductor Components Industries, LLC, 2000 1 Publication Order Number:

August, 2000 – Rev. 4 MC14514B/D
 MC14514B, MC14515B

PIN ASSIGNMENT
ST 1 24 VDD
D1 2 23 INH
D2 3 22 D4
S7 4 21 D3
S6 5 20 S10
S5 6 19 S11
S4 7 18 S8
S3 8 17 S9
S1 9 16 S14
S2 10 15 S15
S0 11 14 S12
VSS 12 13 S13

DECODE TRUTH TABLE (Strobe = 1)*

Data Inputs Selected Output
MC14514 = Logic “1”
Inhibit D C B A MC14515 = Logic “0”
0 0 0 0 0 S0
0 0 0 0 1 S1
0 0 0 1 0 S2
0 0 0 1 1 S3
0 0 1 0 0 S4
0 0 1 0 1 S5
0 0 1 1 0 S6
0 0 1 1 1 S7
0 1 0 0 0 S8
0 1 0 0 1 S9
0 1 0 1 0 S10
0 1 0 1 1 S11
0 1 1 0 0 S12
0 1 1 0 1 S13
0 1 1 1 0 S14
0 1 1 1 1 S15
1 X X X X All Outputs = 0, MC14514
All Outputs = 1, MC14515
X = Don’t Care
*Strobe = 0, Data is latched

BLOCK DIAGRAM 11
S0 ABCD
9
S1 ABCD
VDD = PIN 24 S2 10 ABCD
VSS = PIN 12 S3 8 ABCD
S4 7 ABCD
2 A 6
DATA 1 S5 ABCD
5
S6 ABCD
3 B 4
DATA 2 S7 ABCD
TRANSPARENT 4 TO 16 18
21 LATCH C DECODER S8 ABCD
DATA 3 17
S9 ABCD
22 D 20
DATA 4 S10 ABCD
19
S11 ABCD
S12 14 ABCD
1
STROBE 13
S13 ABCD
S14 16 ABCD
15
S15 ABCD

23
INHIBIT

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 MC14514B, MC14515B

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS)

VDD
Vdc Min
– 55
C
Max Min
25
C
Typ (3.) Max Min
125
C
Max
Characteristic Symbol Unit
Output Voltage “0” Level VOL 5.0 — 0.05 — 0 0.05 — 0.05 Vdc
Vin = VDD or 0 10 — 0.05 — 0 0.05 — 0.05
15 — 0.05 — 0 0.05 — 0.05
“1” Level VOH 5.0 4.95 — 4.95 5.0 — 4.95 — Vdc
Vin = 0 or VDD 10 9.95 — 9.95 10 — 9.95 —
15 14.95 — 14.95 15 — 14.95 —
Input Voltage “0” Level VIL Vdc
(VO = 4.5 or 0.5 Vdc) 5.0 — 1.5 — 2.25 1.5 — 1.5
(VO = 9.0 or 1.0 Vdc) 10 — 3.0 — 4.50 3.0 — 3.0
(VO = 13.5 or 1.5 Vdc) 15 — 4.0 — 6.75 4.0 — 4.0
“1” Level VIH Vdc
(VO = 0.5 or 4.5 Vdc) 5.0 3.5 — 3.5 2.75 — 3.5 —
(VO = 1.0 or 9.0 Vdc) 10 7.0 — 7.0 5.50 — 7.0 —
(VO = 1.5 or 13.5 Vdc) 15 11 — 11 8.25 — 11 —
Output Drive Current IOH mAdc
(VOH = 2.5 Vdc) Source 5.0 – 1.2 — – 1.0 – 1.7 — – 0.7 —
(VOH = 4.6 Vdc) 5.0 – 0.25 — – 0.2 – 0.36 — – 0.14 —
(VOH = 9.5 Vdc) 10 – 0.62 — – 0.5 – 0.9 — – 0.35 —
(VOH = 13.5 Vdc) 15 – 1.8 — – 1.5 – 3.5 — – 1.1 —
(VOL = 0.4 Vdc) Sink IOL 5.0 0.64 — 0.51 0.88 — 0.36 — mAdc
(VOL = 0.5 Vdc) 10 1.6 — 1.3 2.25 — 0.9 —
(VOL = 1.5 Vdc) 15 4.2 — 3.4 8.8 — 2.4 —
Input Current Iin 15 — ± 0.1 — ±0.00001 ± 0.1 — ± 1.0 µAdc
Input Capacitance Cin — — — — 5.0 7.5 — — pF
(Vin = 0)
Quiescent Current IDD 5.0 — 5.0 — 0.005 5.0 — 150 µAdc
(Per Package) 10 — 10 — 0.010 10 — 300
15 — 20 — 0.015 20 — 600
Total Supply Current (4.) (5.) ITL 5.0 IT = (1.35 µA/kHz) f + IDD µAdc
(Dynamic plus Quiescent, 10 IT = (2.70 µA/kHz) f + IDD
Per Package) 15 IT = (4.05 µA/kHz) f + IDD
(CL = 50 pF on all outputs, all
buffers switching)
3. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
4. The formulas given are for the typical characteristics only at 25
C.
5. To calculate total supply current at loads other than 50 pF:
IT(CL) = IT(50 pF) + (CL – 50) Vfk
where: IT is in µA (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.002.

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 MC14514B, MC14515B

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
SWITCHING CHARACTERISTICS (6.) (CL = 50 pF, TA = 25
C)

Min
All Types
Typ (7.) Max
Characteristic Symbol VDD Unit
Output Rise Time tTLH ns
tTLH = (3.0 ns/pF) CL + 30 ns 5.0 — 180 360
tTLH = (1.5 ns/pF) CL + 15 ns 10 — 90 180
tTLH = (1.1 ns/pF) CL + 10 ns 15 — 65 130
Output Fall Time tTHL ns
tTHL = (1.5 ns/pF) CL + 25 ns 5.0 — 100 200
tTHL = (0.75 ns/pF) CL + 12.5 ns 10 — 50 100
tTHL = (0.55 ns/pF) CL + 9.5 ns 15 — 40 80
Propagation Delay Time; Data, Strobe to S tPLH, ns
tPLH, tPHL = (1.7 ns/pF) CL + 465 ns tPHL 5.0 — 550 1100
tPLH, tPHL = (0.86 ns/pF) CL + 192 ns 10 — 225 450
tPLH, tPHL = (0.5 ns/pF) CL + 125 ns 15 — 150 300
Inhibit Propagation Delay Times tPLH, ns
tPLH, tPHL = (1.7 ns/pF) CL + 315 ns tPHL 5.0 — 400 800
tPLH, tPHL = (0.66 ns/pF) CL + 117 ns 10 — 150 300
tPLH, tPHL = (0.5 ns/pF) CL + 75 ns 15 — 100 200
Setup Time tsu ns
Data to Strobe 5.0 250 125 —
10 100 50 —
15 75 38 —
Hold Time th 5.0 – 20 – 100 — ns
Strobe to Data 10 0 – 40 —
15 10 – 30 —
Strobe Pulse Width tWH ns
5.0 350 175 —
10 100 50 —
15 75 38 —
6. The formulas given are for the typical characteristics only at 25
C.
7. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.

VDD

VDS
S0
STROBE S1
S2 For MC14515B
S3 1. For P–channel: Inhibit = VDD
INHIBIT S4 2. For N–channel: Inhibit = VSS
For MC14514B S5 2. and D1–D4 constitute binary
1. For P–channel: Inhibit = VSS D1 S6 2. code for “output under test.”
1. and D1–D4 constitute S7
S8
1. binary code for “output D2 S9
1. under test.” ID
S10
2. For N–channel: Inhibit = VDD D3 S11
S12
S13 EXTERNAL
D4 S14 POWER SUPPLY
S15

VSS

Figure 1. Drain Characteristics Test Circuit

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 MC14514B, MC14515B

VDD

0.01 µF
ID
500 CERAMIC
µF
24 VDD
20 ns 20 ns
PULSE VDD
D1 S0 90%
GENERATOR
D2 CL Vin
D3 10% VSS
D4
STROBE
INHIBIT S15

12 CL
VSS

Figure 2. Dynamic Power Dissipation Test Circuit and Waveform

VDD

STROBE OUTPUT S0
S0
S1 OUTPUT S1 tTLH tTHL
INHIBIT 20 ns
CL CL
VDD
90%
PROGRAMMABLE D1 INPUT 50%
10%
PULSE VSS
GENERATOR tPLH tPHL
D2
VDD
OUTPUT
90%
50%
D3 10% VSS

S15 OUTPUT S15

D4 tTLH tTHL
VSS CL

Figure 3. Switching Time Test Circuit and Waveforms

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 LOGIC DIAGRAM

AB CD
11 S0

AB CD
9 S1

AB CD
10 S2

AB CD
DATA 1 2 A 8 S3
S Q
AB CD
7 S4

R Q AB CD
6 S5

MC14514B, MC14515B
DATA 2 3 B
S Q AB CD
5 S6
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AB CD
4 S7
R Q
6

AB CD
DATA 3 21 C 18 S8
S Q
AB CD
17 S9

R Q AB CD
20 S10
DATA 4 22 D AB CD
S Q 19 S11

AB CD
14 S12
R Q
STROBE 1 AB CD
13 S13

AB CD
16 S14
INHIBIT 23
AB CD
15 S15

IN MC14515B ONLY
 MC14514B, MC14515B

COMPLEX DATA ROUTING

Two MC14512 eight–channel data selectors are used here times faster then the shift frequency of the input registers,
with the MC14514B four–bit latch/decoder to effect a the most significant bit (MSB) from each register could be
complex data routing system. A total of 16 inputs from data selected for transfer to the data bus. Therefore, all of the
registers are selected and transferred via a 3–state data bus most significant bits from all of the registers can be
to a data distributor for rearrangement and entry into 16 transferred to the data bus before the next most significant
output registers. In this way sequential data can be re–routed bit is presented for transfer by the input registers.
or intermixed according to patterns determined by data Information from the 3–state bus is redistributed by the
select and distribution inputs. MC14514B four–bit latch/decoder. Using the four–bit
Data is placed into the routing scheme via the eight inputs address, D1 thru D4, the information on the inhibit line can
on both MC14512 data selectors. One register is assigned to be transferred to the addressed output line to the desired
each input. The signals on A0, A1, and A2 choose one of output registers, A thru P. This distribution of data bits to the
eight inputs for transfer out to the 3–state data bus. A fourth output registers can be made in many complex patterns. For
signal, labelled Dis, disables one of the MC14512 selectors, example, all of the most significant bits from the input
assuring transfer of data from only one register. registers can be routed into output register A, all of the next
In addition to a choice of input registers, 1 thru 16, the rate most significant bits into register B, etc. In this way
of transfer of the sequential information can also be varied. horizontal, vertical, or other methods of data slicing can be
That is, if the MC14512 were addressed at a rate that is eight implemented.

DATA ROUTING SYSTEM

INPUT DATA 3-STATE DATA OUTPUT

REGISTERS TRANSFER DATA BUS DISTRIBUTION REGISTERS

DIS
REGISTER 1 D0 Q
D1
D2
D1 D2 D3 D4
MC14512

D3
S0 REGISTER A
D4
STROBE S1
D5
S2
D6
S3
REGISTER 8 D7 S4
A0 A1 A2
S5
S6
MC14514B

DATA S7
SELECT S8
S9
S10
A0 A1 A2
D0 Q S11
REGISTER 9
D1 S12
D2 S13
INHIBIT
MC14512

D3 S14
D4 S15 REGISTER P
D5
D6
REGISTER 16 D7
DIS

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 MC14514B, MC14515B

PACKAGE DIMENSIONS

PDIP–24
P SUFFIX
PLASTIC DIP PACKAGE
CASE 709–02
ISSUE C

NOTES:
J 1. POSITIONAL TOLERANCE OF LEADS (D),
SHALL BE WITHIN 0.25 (0.010) AT MAXIMUM
MATERIAL CONDITION, IN RELATION TO
24 13 SEATING PLANE AND EACH OTHER.
2. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
B L 3. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
1 12 4. CONTROLLING DIMENSION: INCH.

INCHES MILLIMETERS
A DIM MIN MAX MIN MAX
M
A 1.235 1.265 31.37 32.13
N B 0.540 0.560 13.72 14.22
C C 0.155 0.200 3.94 5.08
D 0.014 0.022 0.36 0.56
F 0.040 0.060 1.02 1.52
K G 0.100 BSC 2.54 BSC
H 0.065 0.080 1.65 2.03
H F J 0.008 0.015 0.20 0.38
SEATING K 0.115 0.135 2.92 3.43
PLANE
G D L 0.600 BSC 15.24 BSC
M 0
15
0
15

N 0.020 0.040 0.51 1.02

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 MC14514B, MC14515B

PACKAGE DIMENSIONS

SOIC–24
DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751E–04
ISSUE E

–A–

24 13 NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
–B– 12X P MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
0.010 (0.25) M B M
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
1 12 PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN
EXCESS OF D DIMENSION AT MAXIMUM
MATERIAL CONDITION.
24X D J
MILLIMETERS INCHES
0.010 (0.25) M T A S B S
DIM MIN MAX MIN MAX
A 15.25 15.54 0.601 0.612
F B 7.40 7.60 0.292 0.299
C 2.35 2.65 0.093 0.104
R X 45
D 0.35 0.49 0.014 0.019
F 0.41 0.90 0.016 0.035
G 1.27 BSC 0.050 BSC
C J 0.23 0.32 0.009 0.013
K 0.13 0.29 0.005 0.011
–T– M 0
8
0
8

SEATING M P 10.05 10.55 0.395 0.415
PLANE 22X G K R 0.25 0.75 0.010 0.029

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 MC14514B, MC14515B

Notes

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 MC14514B, MC14515B

Notes

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 MC14514B, MC14515B

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