© 1999 Fairchild Semiconductor Corporation

DS010931

www.fairchildsemi.com

June 1991

Revised August 1999

74FR2244

Octal Buffer/Line Driver

with 25

Ω Series Resistors in the Outputs

General Description

The

74FR2244 is a non-inverting octal buffer and line driver

designed to drive capacitive inputs of MOS memory

devices, address and clock lines or act as a low under-

shoot general purpose bus driver.

Features

s 3-STATE outputs drive bus lines or buffer memory

address registers

s Outputs sink 12 mA and source 15 mA

s 25

Ω series resistors in outputs eliminate the need for

external resistors

s Designed to drive the capacitive inputs of MOS devices

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Pin Descriptions

Truth Tables

H

= HIGH Voltage Level

L

= LOW Voltage Level

X

= Immaterial

Z

= High Impedance

Order Number

Package Number

Package Description

74FR2244SC

M20B

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

74FR2244SJ

M20D

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

74FR2244PC

N20A

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Pin Names

Description

Output Enable Input (Active-LOW)

Inputs

Outputs

Inputs

Outputs

(Pins 12, 14, 16, 18)

LL

L

LH

H

HX

Z

Inputs

Outputs

(Pins 3, 5, 7, 9)

LL

L

LH

H

HX

Z