1.

General description

The 74HC21 is a dual 4-input AND gate. Inputs include clamp diodes. This enables the

use of current limiting resistors to interface inputs to voltages in excess of VCC.

2.

Features and benefits

 Low-power dissipation

 Complies with JEDEC standard no. 7A

 ESD protection:

 HBM JESD22-A114E exceeds 2000 V

 MM JESD22-A115-A exceeds 200 V

 Multiple package options

 Specified from

40 Cto+85 C and from 40 Cto+125 C.

3.

Ordering information

74HC21

Dual 4-input AND gate

Rev. 7 — 30 November 2015

Product data sheet

Table 1.

Ordering information

Type number

Package

Temperature range

Name

Description

Version

74HC21D

40 C to +125 C

SO14

plastic small outline package; 14 leads;

body width 3.9 mm

SOT108-1

74HC21DB

40 C to +125 C

SSOP14

plastic shrink small outline package; 14 leads;

body width 5.3 mm

SOT337-1

74HC21PW

40 C to +125 C

TSSOP14

plastic thin shrink small outline package; 14 leads;

body width 4.4 mm

SOT402-1

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