© Koninklijke Philips Electronics N.V. 2004

All rights are reserved. Reproduction in whole or in part is prohibited without the prior

written consent of the copyright owner. The information presented in this document does

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be changed without notice. No liability will be accepted by the publisher for any

consequence of its use. Publication thereof does not convey nor imply any license under

patent- or other industrial or intellectual property rights.

Date of release: 12 November 2004

Document number: 9397 750 13807

Published in The Netherlands

Philips Semiconductors

74HC237

3-to-8 line decoder, demultiplexer with address latches

20. Contents

1

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

2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3

Quick reference data . . . . . . . . . . . . . . . . . . . . . 2

4

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

5

Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3

6

Pinning information . . . . . . . . . . . . . . . . . . . . . . 4

6.1

Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

6.2

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5

7

Functional description . . . . . . . . . . . . . . . . . . . 5

7.1

Function table . . . . . . . . . . . . . . . . . . . . . . . . . . 5

8

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 6

9

Recommended operating conditions. . . . . . . . 6

10

Static characteristics. . . . . . . . . . . . . . . . . . . . . 7

11

Dynamic characteristics . . . . . . . . . . . . . . . . . . 9

12

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

13

Application information. . . . . . . . . . . . . . . . . . 13

14

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 14

15

Revision history . . . . . . . . . . . . . . . . . . . . . . . . 17

16

Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 18

17

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

18

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

19

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