Datasheet MC74HC157ADT, MC74HC157ADTR2, MC74HC157AF, MC74HC157AFEL, MC74HC157AFL1 Datasheet (MOTOROLA)

 Semiconductor Components Industries, LLC, 2000

March, 2000 – Rev. 8

1 Publication Order Number:

MC74HC157A/D

MC74HC157A

Quad 2-Input Data
Selectors / Multiplexers

High–Performance Silicon–Gate CMOS

The MC74HC157A is identical in pinout to the LS157. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.

This device routes 2 nibbles (A or B) to a single port (Y) as
determined by the Select input. The data is presented at the outputs in
noninverted form. A high level on the Output Enable input sets all four
Y outputs to a low level.

• Output Drive Capability: 10 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2.0 to 6.0 V

• Low Input Current: 1.0 µA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance with the Requirements Defined by JEDEC Standard

No. 7A

• Chip Complexity: 82 FETs or 20.5 Equivalent Gates

LOGIC DIAGRAM

2

5
11
14

3

6
10
13

4
7
9

12

1

15

A0
A1
A2
A3

B0
B1
B2
B3

Y0
Y1
Y2
Y3

SELECT
OUTPUT

ENABLE

DATA
OUTPUTS

NIBBLE

A INPUTS

NIBBLE

B INPUTS

PIN 16 = V

CC

PIN 8 = GND

FUNCTION TABLE

Inputs

Output Outputs
Enable Select Y0 – Y3

X = don’t care
A0 – A3, B0 – B3 = the levels of the
respective Data–Word Inputs.

H
L
L

X
L
H

L
A0–A3
B0–B3

SO–16

D SUFFIX

CASE 751B

http://onsemi.com

TSSOP–16
DT SUFFIX
CASE 948F

1

16

PDIP–16
N SUFFIX
CASE 648

1

16

1

16

MARKING

DIAGRAMS

1

16

MC74HC157AN

AWLYYWW

1

16

HC157A

AWLYWW

A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week

HC

157A

ALYW

1

16

Device Package Shipping

ORDERING INFORMATION

MC74HC157AN PDIP–16 2000 / Box
MC74HC157AD SOIC–16

48 / Rail
MC74HC157ADR2 SOIC–16 2500 / Reel
MC74HC157ADT TSSOP–16 96 / Rail
MC74HC157ADTR2 TSSOP–16

2500 / Reel

PIN ASSIGNMENT

13

14

15

16

9

10

11

125

4

3

2

1

8

7

6

SELECT

Y0

B0

A0

Y1

B1

A1

GND

Y3

B3

A3

OUTPUT
ENABLE

V

CC

B2

A2

Y2

MC74HC157A

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2

MAXIMUM RATINGS*

Symbol

Parameter

Value

Unit

V

CC

DC Supply Voltage (Referenced to GND)

– 0.5 to + 7.0

V

V

in

DC Input Voltage (Referenced to GND)

– 0.5 to VCC + 0.5

V

V

out

DC Output Voltage (Referenced to GND)

– 0.5 to VCC + 0.5

V

I

in

DC Input Current, per Pin

± 20

mA

I

out

DC Output Current, per Pin

± 25

mA

I

CC

DC Supply Current, VCC and GND Pins

± 50

mA

ÎÎ

Î

P

D

ОООООООООООО

Î

Power Dissipation in Still Air, Plastic DIP†

SOIC Package†

TSSOP Package†

ÎÎÎ

Î

750
500
450

Î

Î

mW

T

stg

Storage Temperature

– 65 to + 150

_

C

ÎÎ

Î

T

L

ОООООООООООО

Î

Lead Temperature, 1 mm from Case for 10 Seconds

(Plastic DIP, SOIC or TSSOP Package)

ÎÎÎ

Î

260

Î

Î

_

C

*Maximum Ratings are those values beyond which damage to the device may occur.

Functional operation should be restricted to the Recommended Operating Conditions.

†Derating — Plastic DIP: – 10 mW/_C from 65_ to 125_C

SOIC Package: – 7 mW/_C from 65_ to 125_C
TSSOP Package: – 6.1 mW/_C from 65_ to 125_C

For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor High–Speed CMOS Data Book (DL129/D).

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Min

ÎÎ

Max

Unit

V

CC

DC Supply Voltage (Referenced to GND)

2.0

ÎÎ

6.0

V

Vin, V

out

DC Input Voltage, Output Voltage
(Referenced to GND)

0

ÎÎ

V

CC

V

T

A

Operating Temperature, All Package Types

– 55

ÎÎ

+ 125

_

C

ÎÎ

Î

ÎÎ

Î

tr, t

f

ООООООООООООО

Î

ООООООООООООО

Î

Input Rise and Fall Time VCC = 2.0 V

(Figure 1) VCC = 4.5 V

VCC = 6.0 V

Î

Î

Î

Î

0
0
0

ÎÎ

ÎÎ

ÎÎ

1000

500
400

Î

Î

Î

Î

ns

DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)

Guaranteed Limit

ÎÎ

Î

Symbol

ООООООО

Î

Parameter

ООООООО

Î

Test Conditions

ÎÎ

Î

V

CC
V

ÎÎ

Î

– 55 to

25_C

ÎÎÎ

Î

Î

Î

v

85_C

ÎÎ

Î

v

125_C

Î

Î

Unit

ÎÎ

Î

V

IH

ООООООО

Î

Minimum High–Level Input
Voltage

ООООООО

Î

V

out

= VCC – 0.1 V

|I

out

| v 20 µA

ÎÎ

Î

2.0

3.0

4.5

6.0

ÎÎ

Î

1.5

2.1

3.15

4.2

ÎÎÎ

Î

Î

Î

1.5

2.1

3.15

4.2

ÎÎ

Î

1.5

2.1

3.15

4.2

Î

Î

V

ÎÎ

Î

ÎÎ

Î

V

IL

ООООООО

Î

ООООООО

Î

Maximum Low–Level Input
Voltage

ООООООО

Î

ООООООО

Î

V

out

= 0.1 V

|I

out

| v 20 µA

ÎÎ

Î

ÎÎ

Î

2.0

3.0

4.5

6.0

ÎÎ

Î

ÎÎ

Î

0.5

0.9

1.35

1.8

ÎÎÎ

Î

Î

Î

Î

Î

Î

0.5

0.9

1.35

1.8

ÎÎ

Î

ÎÎ

Î

0.5

0.9

1.35

1.8

Î

Î

Î

Î

V

ÎÎ

Î

V

OH

ООООООО

Î

Minimum High–Level Output
Voltage

ООООООО

Î

Vin = V

IH

|I

out

| v 20 µA

ÎÎ

Î

2.0

4.5

6.0

ÎÎ

Î

1.9

4.4

5.9

ÎÎÎ

Î

Î

Î

1.9

4.4

5.9

ÎÎ

Î

1.9

4.4

5.9

Î

Î

V

ÎÎ

Î

ÎÎ

Î

ООООООО

Î

ООООООО

Î

ООООООО

Î

ООООООО

Î

Vin = V

IH

|I

out

| v 2.4 mA

|I

out

| v 6.0 mA

|I

out

| v 7.8 mA

ÎÎ

Î

ÎÎ

Î

3.0

4.5

6.0

ÎÎ

Î

ÎÎ

Î

2.48

3.98

5.48

ÎÎÎ

Î

Î

Î

Î

Î

Î

2.34

3.84

5.34

ÎÎ

Î

ÎÎ

Î

2.2

3.7

5.2

Î

Î

Î

Î

ÎÎ

Î

V

OL

ООООООО

Î

Maximum Low–Level Output
Voltage

ООООООО

Î

Vin = V

IL

|I

out

| v 20 µA

ÎÎ

Î

2.0

4.5

6.0

ÎÎ

Î

0.1

0.1

0.1

ÎÎÎ

Î

Î

Î

0.1

0.1

0.1

ÎÎ

Î

0.1

0.1

0.1

Î

Î

V

ÎÎÎОООООООÎООООООО

Î

Vin = V

IL

|I

out

| v 2.4 mA

|I

out

| v 6.0 mA

|I

out

| v 7.8 mA

ÎÎ

Î

3.0

4.5

6.0

ÎÎ

Î

0.26

0.26

0.26

ÎÎÎ

Î

Î

Î

0.33

0.33

0.33

ÎÎ

Î

0.4

0.4

0.4

Î

Î

This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high–impedance cir­cuit. For proper operation, Vin and
V

out

should be constrained to the

range GND v (Vin or V

out

) v VCC.

Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.

MC74HC157A

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3

DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)

Guaranteed Limit

Unit

v

125_C

ÎÎÎ

v

85_C

– 55 to

25_C

V

CC

V

Test Conditions

Parameter

Symbol

ÎÎ

Î

I

in

ООООООО

Î

Maximum Input Leakage
Current

ООООООО

Î

Vin = VCC or GND

ÎÎ

Î

6.0

ÎÎ

Î

± 0.1

ÎÎÎ

Î

Î

Î

± 1.0

ÎÎ

Î

± 1.0

Î

Î

µA

ÎÎ

Î

I

OZ

ООООООО

Î

Maximum Three–State
Leakage Current

ООООООО

Î

Output in High–Impedance State
Vin = VIL or V

IH

V

out

= VCC or GND

ÎÎ

Î

6.0

ÎÎ

Î

± 0.5

ÎÎÎ

Î

Î

Î

± 5.0

ÎÎ

Î

± 10

Î

Î

µA

ÎÎ

Î

I

CC

ООООООО

Î

Maximum Quiescent Supply
Current (per Package)

ООООООО

Î

Vin = VCC or GND
I

out

= 0 µA

ÎÎ

Î

6.0

ÎÎ

Î

4.0

ÎÎÎ

Î

Î

Î

40

ÎÎ

Î

160

Î

Î

µA

NOTE: Information on typical parametric values can be found in Chapter 2 of the ON Semiconductor High–Speed CMOS Data Book

(DL129/D).

AC ELECTRICAL CHARACTERISTICS (C

L

= 50 pF, Input tr = tf = 6.0 ns)

Guaranteed Limit

Symbol

Parameter

V

CC
V

– 55 to

25_C

ÎÎÎ

v

85_Cv 125_C

Unit

ÎÎÎ

Î

ÎÎÎ

Î

t

PLH

,

t

PHL

ОООООООООООООО

Î

ОООООООООООООО

Î

Maximum Propagation Delay, Input A or B to Output Y

(Figures 1 and 4)

ÎÎ

Î

ÎÎ

Î

2.0

3.0

4.5

6.0

ÎÎ

Î

ÎÎ

Î

105

65
21
18

ÎÎÎ

Î

Î

Î

Î

Î

Î

130

85
26
22

ÎÎ

Î

ÎÎ

Î

160
115

32
27

Î

Î

Î

Î

ns

ÎÎÎ

Î

ÎÎÎ

Î

t

PLH

,

t

PHL

ОООООООООООООО

Î

ОООООООООООООО

Î

Maximum Propagation Delay, Select to Output Y

(Figures 2 and 4)

ÎÎ

Î

ÎÎ

Î

2.0

3.0

4.5

6.0

ÎÎ

Î

ÎÎ

Î

110

70
22
19

ÎÎÎ

Î

Î

Î

Î

Î

Î

140

90
28
24

ÎÎ

Î

ÎÎ

Î

165
115

33
28

Î

Î

Î

Î

ns

ÎÎÎ

Î

ÎÎÎ

Î

t

PLH

,

t

PHL

ОООООООООООООО

Î

ОООООООООООООО

Î

Maximum Propagation Delay, Output Enable to Output Y

(Figures 3 and 4)

ÎÎ

Î

ÎÎ

Î

2.0

3.0

4.5

6.0

ÎÎ

Î

ÎÎ

Î

100

60
20
17

ÎÎÎ

Î

Î

Î

Î

Î

Î

125

80
25
21

ÎÎ

Î

ÎÎ

Î

150
110

30
26

Î

Î

Î

Î

ns

ÎÎÎ

Î

ÎÎÎ

Î

t

TLH

,

t

THL

ОООООООООООООО

Î

ОООООООООООООО

Î

Maximum Output Transition Time, Any Output

(Figures 1 and 4)

ÎÎ

Î

ÎÎ

Î

2.0

3.0

4.5

6.0

ÎÎ

Î

ÎÎ

Î

75
27
15
13

ÎÎÎ

Î

Î

Î

Î

Î

Î

95
32
19
16

ÎÎ

Î

ÎÎ

Î

110

36
22
19

Î

Î

Î

Î

ns

C

in

Maximum Input Capacitance

—

10

ÎÎÎ

10

10

pF

NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the ON

Semiconductor High–Speed CMOS Data Book (DL129/D).

Typical @ 25°C, VCC = 5.0 V

C

PD

Power Dissipation Capacitance (Per Package)*

33

pF

*Used to determine the no–load dynamic power consumption: PD = CPD V

CC

2

f + ICC VCC. For load considerations, see Chapter 2 of the

ON Semiconductor High–Speed CMOS Data Book (DL129/D).

MC74HC157A

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4

PIN DESCRIPTIONS

INPUTS
A0, A1, A2, A3 (Pins 2, 5, 11, 14)

Nibble A inputs. The data present on these pins is
transferred to the outputs when the Select input is at a low
level and the Output Enable input is at a low level. The data
is presented to the outputs in noninverted form.

B0, B1, B2, B3 (Pins 3, 6, 10, 13)

Nibble B inputs. The data present on these pins is
transferred to the outputs when the Select input is at a high
level and the Output Enable input is at a low level. The data
is presented to the outputs in noninverted form.

OUTPUTS
Y0, Y1, Y2, Y3 (Pins 4, 7, 9, 12)

Data outputs. The selected input Nibble is presented at
these outputs when the Output Enable input is at a low level.

The data present on these pins is in its noninverted form. For
the Output Enable input at a high level, the outputs are at a
low level.

CONTROL INPUTS
Select (Pin 1)

Nibble select. This input determines the data word to be
transferred to the outputs. A low level on this input selects
the A inputs and a high level selects the B inputs.

Output Enable (Pin 15)

Output Enable input. A low level on this input allows the
selected input data to be presented at the outputs. A high
level on this input sets all outputs to a low level.

SWITCHING W AVEFORMS

INPUT A OR B

Figure 1. HC157A Figure 2. Y versus Select, Noninverted

OUTPUT
ENABLE

t

PLH

t

PHL

t

r

t

f

V

CC

GND

t

THL

t

TLH

10%

50%

90%

10%

50%

90%

Figure 3. HC157A

OUTPUT Y

*Includes all probe and jig capacitance

CL*

TEST POINT

DEVICE
UNDER

TEST

OUTPUT

Figure 4. Test Circuit

t

r

t

f

V

CC

GND

OUTPUT Y

t

PHL

t

PLH

10%

50%

90%

10%

50%

90%

t

TLH

t

THL

t

r

t

f

V

CC

GND

SELECT

OUTPUT Y

t

PHL

t

PLH

t

TLH

t

THL

10%

50%

90%

10%

50%

90%

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5

EXPANDED LOGIC DIAGRAM

4

7

9

12

2

3

5

6

11

10

14

13
15

1

A0

B0

A1

B1

A2

B2

A3

B3

Y0

Y1

Y2

Y3

OUTPUT ENABLE

SELECT

DATA
OUTPUTS

NIBBLE

OUTPUTS

MC74HC157A

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6

P ACKAGE DIMENSIONS

PDIP–16

N SUFFIX

CASE 648–08

ISSUE R

MIN MINMAX MAX

INCHES MILLIMETERS

DIM

A
B
C
D
F
G
H

J
K
L
M
S

18.80

6.35

3.69

0.39

1.02

0.21

2.80

7.50
0°

0.51

19.55

6.85

4.44

0.53

1.77

0.38

3.30

7.74
10°

1.01

0.740

0.250

0.145

0.015

0.040

0.008

0.110

0.295
0°

0.020

0.770

0.270

0.175

0.021

0.070

0.015

0.130

0.305
10°

0.040

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.

4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.

5. ROUNDED CORNERS OPTIONAL.

2.54 BSC

1.27 BSC

0.100 BSC

0.050 BSC

–A

–

B

18

916

F

H

G

D

16 PL

S

C

–T

–

SEATING
PLANE

K

J

M

L

TA0.25 (0.010)

M M

0.25 (0.010) T B A

M

S S

MIN MINMAX MAX

MILLIMETERS INCHES

DIM

A
B
C
D
F
G
J
K
M
P
R

9.80

3.80

1.35

0.35

0.40

0.19

0.10
0°

5.80

0.25

10.00

4.00

1.75

0.49

1.25

0.25

0.25
7°

6.20

0.50

0.386

0.150

0.054

0.014

0.016

0.008

0.004
0°

0.229

0.010

0.393

0.157

0.068

0.019

0.049

0.009

0.009
7°

0.244

0.019

1.27 BSC 0.050 BSC

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.

5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.

1

8

916

–A

–

–B

–

D

16 PL

K

C

G

–T

–

SEATING

PLANE

R X 45°

M

J

F

P 8 PL

0.25 (0.010) B

M M

SOIC–16

D SUFFIX

CASE 751B–05

ISSUE J

MC74HC157A

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7

P ACKAGE DIMENSIONS

TSSOP–16

DT SUFFIX

CASE 948F–01

ISSUE O

DIM MIN MAX MIN MAX

INCHESMILLIMETERS

A 4.90 5.10 0.193 0.200
B 4.30 4.50 0.169 0.177
C ––– 1.20 ––– 0.047
D 0.05 0.15 0.002 0.006
F 0.50 0.75 0.020 0.030
G 0.65 BSC 0.026 BSC
H 0.18 0.28 0.007 0.011
J 0.09 0.20 0.004 0.008

J1 0.09 0.16 0.004 0.006

K 0.19 0.30 0.007 0.012

K1 0.19 0.25 0.007 0.010

L 6.40 BSC 0.252 BSC

M 0 8 0 8

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSION A DOES NOT INCLUDE MOLD FLASH.
PROTRUSIONS OR GATE BURRS. MOLD FLASH OR
GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER
SIDE.

4. DIMENSION B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED

0.25 (0.010) PER SIDE.

5. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR PROTRUSION
SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K
DIMENSION AT MAXIMUM MATERIAL CONDITION.

6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.

7. DIMENSION A AND B ARE TO BE DETERMINED AT
DATUM PLANE –W–.

____

SECTION N–N

SEATING
PLANE

IDENT.

PIN 1

1

8

16

9

DETAIL E

J

J1

B

C

D

A

K

K1

H

G

DETAIL E

F

M

L

2X L/2

–U–

S

U0.15 (0.006) T

S

U0.15 (0.006) T

S

U

M

0.10 (0.004) V

S

T

0.10 (0.004)

–T–

–V–

–W–

0.25 (0.010)

16X REFK

N

N

MC74HC157A

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without further notice to any products herein. SCILLC makes no warranty , representation or guarantee regarding the suitability of its products for any particular
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MC74HC157A/D

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