74HC_HCT157

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© NXP Semiconductors N.V. 2015. All rights reserved.

Product data sheet

Rev. 8 — 28 December 2015

4 of 18

NXP Semiconductors

74HC157; 74HCT157

Quad 2-input multiplexer

5.2 Pin description

6.

Functional description

[1]

H = HIGH voltage level; L = LOW voltage level; X = don’t care.

7.

Limiting values

[1]

Ptot derates linearly with 8 mW/K above 70 C.

[2]

Ptot derates linearly with 5.5 mW/K above 60 C.

[3]

Ptot derates linearly with 4.5 mW/K above 60 C.

Table 2.

Pin description

Symbol

Pin

Description

S

1

common data select input

1I0 to 4I0

2, 5, 11, 14

data inputs from source 0

1I1 to 4I1

3, 6, 10, 13

data inputs from source 1

1Y to 4Y

4, 7, 9, 12

multiplexer outputs

GND

8

ground (0 V)

E

15

enable input (active LOW)

VCC

16

supply voltage

Table 3.

Function table[1]

Input

Output

E

S

nI0

nI1

nY

H

XXXL

LLLX

L

LLH

X

H

LH

X

LL

LH

X

H

H

Table 4.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).

Symbol

Parameter

Conditions

Min

Max

Unit

VCC

supply voltage

0.5

+7

V

IIK

input clamping current

VI < 0.5 V or VI >VCC +0.5 V

-

20

mA

IOK

output clamping current

VO < 0.5 V or VO >VCC +0.5 V

-

20

mA

IO

output current

VO = 0.5 V to (VCC +0.5 V)

-

25

mA

ICC

supply current

-

+50

mA

IGND

ground current

50

-

mA

Tstg

storage temperature

65

+150

C

Ptot

total power dissipation

Tamb = 40 C to +125 C

SO16 package

[1]

-

500

mW

(T)SSOP16 package

[2]

-

500

mW

DHVQFN16 package

[3]

-

500

mW