HD74LS122

Rev.2.00, Feb.18.2005, page 2 of 7

Features

• Ordering Information

Part Name

Package Type

Package Code

(Previous Code)

Package

Abbreviation

Taping Abbreviation

(Quantity)

HD74LS122P

DILP-14 pin

PRDP0014AB-B

(DP-14AV)

P

—

HD74LS122FPEL

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)

Rext/Cext

NC

Cext

Rint

NC

GND

CLR

Q

Q

1

2

3

4

5

6

7

14

8

9

10

11

12

13

CLR

Q

Q

Function Table

Inputs

Outputs

Clear

Q

Q

L

X

X

X

X

L

H

X

H

H

X

X

L

H

X

X

X

L

X

L

H

X

X

X

X

L

L

H

H

L

X

↑

H

H

L

X

H

↑

H

X

L

↑

H

H

X

L

H

↑

H

H

↓

H

H

H

↓

↓

H

H

H

↓

H

H

H

↑

L

X

H

H

↑

X

L

H

H

Notes: H; high level, L; low level, X; irrelevant

↑; transition from low to high level

↓; transition from high to low level

; one high-level pulse

; one low-level pulse