1.

General description

The 74HC21 is a high-speed Si-gate CMOS device and is pin compatible with low-power

Schottky TTL (LSTTL).

The 74HC21 provide the 4-input AND function.

2.

Features

3.

Ordering information

74HC21

Dual 4-input AND gate

Rev. 05 — 7 May 2009

Product data sheet

Table 1.

Ordering information

Type number

Package

Temperature range

Name

Description

Version

74HC21N

−40 °C to +125 °C

DIP14

plastic dual in-line package; 14 leads (300 mil)

SOT27-1

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