English
Language : 

74HC21 Datasheet, PDF (12/14 Pages) NXP Semiconductors – Dual 4-input AND gate
NXP Semiconductors
74HC21
Dual 4-input AND gate
13. Abbreviations
Table 10. Abbreviations
Acronym
Description
CMOS
Complementary Metal Oxide Semiconductor
DUT
Device Under Test
ESD
ElectroStatic Discharge
HBM
Human Body Model
MM
Machine Model
TTL
Transistor-Transistor Logic
14. Revision history
Table 11. Revision history
Document ID
Release date Data sheet status
Change notice
Supersedes
74HC21_5
20090507
Product data sheet
-
74HC21_4
Modifications:
Table 1: Type number 74HCT21PW changed to 74HC21PW.
74HC21_4
Modifications:
20090407
Product data sheet
-
74HC21_3
• 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.
• Added type number 74HC21PW (TSSOP14 package).
74HC21_3
20041112
Product data sheet
-
74HC_HCT21_CNV_2
74HC_HCT21_CNV_2 19970828
Product specification
-
74HC_HCT21_1
74HC_HCT21_1
19901201
Product specification
-
-
74HC21_5
Product data sheet
Rev. 05 — 7 May 2009
© NXP B.V. 2009. All rights reserved.
12 of 14