74AHC138D,112 查看數據表（PDF） - NXP Semiconductors.

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74AHC138D,112

3-to-8 line decoder/demultiplexer; inverting

NXP Semiconductors. 

Nexperia

74AHC138; 74AHCT138

3-to-8 line decoder/demultiplexer; inverting

10. Dynamic characteristics

Table 7. Dynamic characteristics

GND = 0 V; For test circuit see Figure 8.

Symbol Parameter Conditions

25 C

40 C to +85 C 40 C to +125 C Unit

Min Typ[1] Max Min

Max

Min

Max

For type 74AHC138

tpd

propagation An to Yn; see Figure 6

[2]

delay

VCC = 3.0 V to 3.6 V

CL = 15 pF

- 6.0 11.4 1.0

13.0

1.0

14.5 ns

CL = 50 pF

- 8.6 15.8 1.0

18.0

1.0

20.0 ns

VCC = 4.5 V to 5.5 V

CL = 15 pF

- 4.4 8.1 1.0

9.5

1.0

10.5 ns

CL = 50 pF

-

6.3 10.1 1.0

11.5

1.0

13.0 ns

E3 to Yn; see Figure 6

[2]

VCC = 3.0 V to 3.6 V

CL = 15 pF

- 5.8 12.8 1.0

15.0

1.0

16.0 ns

CL = 50 pF

- 8.2 16.3 1.0

18.5

1.0

20.5 ns

VCC = 4.5 V to 5.5 V

CL = 15 pF

- 4.2 8.1 1.0

9.5

1.0

10.5 ns

CL = 50 pF

-

6.0 10.1 1.0

11.5

1.0

13.0 ns

E1, E2 to Yn; see Figure 7 [2]

VCC = 3.0 V to 3.6 V

CL = 15 pF

- 5.7 11.4 1.0

13.5

1.0

14.5 ns

CL = 50 pF

- 8.2 14.9 1.0

17.0

1.0

19.0 ns

VCC = 4.5 V to 5.5 V

CL = 15 pF

- 4.2 8.1 1.0

9.5

1.0

10.5 ns

CL = 50 pF

-

6.0 10.1 1.0

11.5

1.0

13.0 ns

CPD

power

CL = 50 pF; fi = 1 MHz;

[4] - 18.0 -

-

-

-

-

pF

dissipation VI = GND to VCC

capacitance

74AHC_AHCT138

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 4 — 2 April 2014

© Nexperia B.V. 2017. All rights reserved

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