Rev.2.00, Feb.18.2005, page 1 of 4

HD74LS21

Dual 4-input Positive AND Gates

REJ03D0401–0200

Rev.2.00

Feb.18.2005

Features

• Ordering Information

Part Name

Package Type

Package Code

(Previous Code)

Package

Abbreviation

Taping Abbreviation

(Quantity)

HD74LS21P

DILP-14 pin

PRDP0014AB-B

(DP-14AV)

P

—

HD74LS21FPEL

SOP-14 pin (JEITA)

PRSP0014DF-B

(FP-14DAV)

FP

EL (2,000 pcs/reel)

Note:

Please consult the sales office for the above package availability.

Pin Arrangement

(Top view)

2D

2C

NC

2A

2B

1A

GND

1B

NC

1C

1D

1Y

2Y

1

2

3

4

5

6

7

14

8

9

10

11

12

13

Circuit Schematic (1/2)

C

8k

20k

4.5k

GND

Y

Output

75

10k

3k

1.5k

D

A

Inputs

B