Nexperia

74HC154; 74HCT154

4-to-16 line decoder/demultiplexer

10. Dynamic characteristics

Table 8. Dynamic characteristics

GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit, see Fig. 9.

25 °C

-40 °C to +85 °C -40 °C to +125 °C

Symbol Parameter

Conditions

Min Typ Max

Min

Max

Min

Max

Unit

74HC154

An to Yn; see Fig. 7

[1]

VCC = 2.0 V

-

36

150

-

190

-

225

ns

VCC = 4.5 V

-

13

30

-

38

-

45

ns

VCC = 5 V; CL = 15 pF

-

11

-

-

-

-

-

ns

VCC = 6.0 V

-

10

26

-

33

-

38

ns

En to Yn; see Fig. 8

VCC = 2.0 V

-

39

150

-

190

-

225

ns

VCC = 4.5 V

-

14

30

-

38

-

45

ns

VCC = 5 V; CL = 15 pF

-

11

-

-

-

-

-

ns

tpd

propagation

delay

VCC = 6.0 V

-

11

26

-

33

-

38

ns

see Fig. 7 and Fig. 8

[2]

VCC = 2.0 V

-

19

75

-

95

-

110

ns

VCC = 4.5 V

-

7

15

-

19

-

22

ns

tt

transition time

VCC = 6.0 V

-

6

13

-

16

-

19

ns

CPD

power

dissipation

capacitance

per gate; VI = GND to VCC [3]

-

60

-

-

-

-

-

pF

74HCT154

An to Yn; see Fig. 7

[1]

VCC = 4.5 V

-

16

35

-

44

-

53

ns

VCC = 5 V; CL = 15 pF

-

13

-

-

-

-

-

ns

En to Yn; see Fig. 8

VCC = 4.5 V

-

15

32

-

40

-

48

ns

tpd

propagation

delay

VCC = 5 V; CL = 15 pF

-

13

-

-

-

-

-

ns

see Fig. 7 and Fig. 8

[2]

tt

transition time

VCC = 4.5 V

-

7

15

-

19

-

22

ns

CPD

power

dissipation

capacitance

per gate;

VI = GND to (VCC - 1.5 V)

[3]

-

60

-

-

-

-

-

pF

[1] tpd is the same as tPLH and tPHL

[2] tt is the same as tTLH and tTHL

[3] CPD is used to determine the dynamic power dissipation (PD in μW).

PD = CPD × VCC 2 × fi × N + Σ(CL × VCC 2 × fo) where:

fi = input frequency in MHz;

fo = output frequency in MHz;

CL = output load capacitance in pF;

VCC = supply voltage in V;

N = number of load switching outputs;

Σ(CL × VCC 2 × fo) = sum of the outputs.

74HC_HCT154

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 9 — 19 August 2021

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