Datasheet
NXP Semiconductors
74HC7540; 74HCT7540
Octal Schmitt trigger buffer/line driver; 3-state; 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: 31 December 2012
Document identifier: 74HC_HCT7540
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
19. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Ordering information. . . . . . . . . . . . . . . . . . . . . 1
4 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
5 Pinning information. . . . . . . . . . . . . . . . . . . . . . 2
5.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Functional description . . . . . . . . . . . . . . . . . . . 3
7 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3
8 Recommended operating conditions. . . . . . . . 4
9 Static characteristics. . . . . . . . . . . . . . . . . . . . . 4
10 Dynamic characteristics . . . . . . . . . . . . . . . . . . 5
11 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
12 Transfer characteristics . . . . . . . . . . . . . . . . . . 9
13 Transfer characteristics waveforms. . . . . . . . . 9
14 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 10
15 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 13
16 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 13
17 Legal information. . . . . . . . . . . . . . . . . . . . . . . 14
17.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 14
17.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
17.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
17.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
18 Contact information. . . . . . . . . . . . . . . . . . . . . 15
19 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16