© Koninklijke Philips Electronics N.V. 2004

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

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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 13808

Published in The Netherlands

Philips Semiconductors

74HC243

Quad bus transceiver; 3-state

19. 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 . . . . . . . . . . . . . . . . . . . . . . . . . 4

7

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

7.1

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

8

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5

9

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

10

Static characteristics. . . . . . . . . . . . . . . . . . . . . 6

11

Dynamic characteristics . . . . . . . . . . . . . . . . . . 8

12

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

13

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 12

14

Revision history . . . . . . . . . . . . . . . . . . . . . . . . 15

15

Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 16

16

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

17

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

18

Contact information . . . . . . . . . . . . . . . . . . . . 16