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74HCT158U

Quad 2-input multiplexer; inverting

Philips Electronics 

Philips Semiconductors

Quad 2-input multiplexer; inverting

Product specification

74HC/HCT158

DC CHARACTERISTICS FOR 74HCT

For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: standard

ICC category: MSI

Note to HCT types

The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications. To

determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.

INPUT

nI0

nI1

S

E

UNIT LOAD COEFFICIENT

0.40

0.40

2.80

0.60

AC CHARACTERISTICS FOR 74HCT

GND = 0 V; tr = tf = 6 ns; CL = 50 pF

Tamb (°C)

TEST CONDITIONS

SYMBOL PARAMETER

74HCT

+25

−40 to +85

min. typ. max. min. max.

−40 to +125

min. max.

UNIT

VCC

(V)

WAVEFORMS

tPHL/ tPLH propagation delay

16 30

38

45

ns

4.5 Fig.7

nI0, nI1 to nY

tPHL/ tPLH propagation delay

19 35

44

53

ns

4.5 Fig.6

E to nY

tPHL/ tPLH propagation delay

19 35

44

53

ns

4.5 Fig.7

S to nY

tTHL/ tTLH output transition

7 15

19

22

ns

4.5 Figs 6 and 7

time

December 1990

6

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