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74HC154

4-to-16 line decoder/demultiplexer

Philips Electronics 

Philips Semiconductors

4-to-16 line decoder/demultiplexer

Product specification

74HC/HCT154

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

An

En

UNIT LOAD COEFFICIENT

1.0

1.0

AC CHARACTERISTICS FOR 74HCT

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

Tamb (°C)

TEST CONDITIONS

SYMBOL PARAMETER

min.

+25

typ.

74HCT

−40 to +85

max. min. max.

−40 to +125

min. max.

UNIT VCC WAVEFORMS

(V)

tPHL/ tPLH

tPHL/ tPLH

tTHL/ tTLH

propagation delay

An to Yn

propagation delay

En to Yn

output transition time

16 35

44

53 ns 4.5 Fig.6

15 32

40

48 ns 4.5 Fig.7

7 15

19

22 ns 4.5 Figs 6 and 7

September 1993

6

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