NXP Semiconductors

74HC138; 74HCT138

3-to-8 line decoder/demultiplexer; inverting

© NXP B.V. 2012.

All rights reserved.

For more information, please visit: http://www.nxp.com

For sales office addresses, please send an email to: salesaddresses@nxp.com

Date of release: 27 June 2012

Document identifier: 74HC_HCT138

Please be aware that important notices concerning this document and the product(s)

described herein, have been included in section ‘Legal information’.

17. Contents

1

General description . . . . . . . . . . . . . . . . . . . . . . 1

2

Features and benefits . . . . . . . . . . . . . . . . . . . . 1

3

Ordering information . . . . . . . . . . . . . . . . . . . . . 2

4

Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2

5

Pinning information . . . . . . . . . . . . . . . . . . . . . . 3

5.1

Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

5.2

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4

6

Functional description . . . . . . . . . . . . . . . . . . . 4

7

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4

8

Recommended operating conditions. . . . . . . . 5

9

Static characteristics . . . . . . . . . . . . . . . . . . . . . 5

10

Dynamic characteristics . . . . . . . . . . . . . . . . . . 7

11

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

12

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 11

13

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 16

14

Revision history . . . . . . . . . . . . . . . . . . . . . . . . 16

15

Legal information. . . . . . . . . . . . . . . . . . . . . . . 17

15.1

Data sheet status . . . . . . . . . . . . . . . . . . . . . . 17

15.2

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

15.3

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

15.4

Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 18

16

Contact information. . . . . . . . . . . . . . . . . . . . . 18

17

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19