74AHC_AHCT257_2 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 02 — 9 May 2008 14 of 16
NXP Semiconductors
74AHC257; 74AHCT257
Quad 2-input multiplexer; 3-state
13. Abbreviations
14. Revision history
Table 10. Abbreviations
Acronym Description
CDM Charged Device Model
CMOS Complementary Metal-Oxide Semiconductor
DUT Device Under Test
ESD ElectroStatic Discharge
HBM Human Body Model
LSTTL Low-power Schottky Transistor-Transistor Logic
MM Machine Model
Table 11. Revision history
Document ID Release date Data sheet status Change notice Supersedes
74AHC_AHCT257_2 20080509 Product data sheet - 74AHC_AHCT257_1
Modifications:
• The format of this data sheet has been redesigned to comply with the new identity
guidelines of NXP Semiconductors.
• Legal texts have been adapted to the new company name where appropriate.
• Table 6: the conditions for input leakage current have been changed.
74AHC_AHCT257_1 20000403 Product specification - -