© 2005 Fairchild Semiconductor Corporation

DS011511

www.fairchildsemi.com

November 1992

Revised March 2005

74ABT574

Octal D-Type Flip-Flop with 3-STATE Outputs

General Description

The ABT574 is an octal flip-flop with a buffered common

Clock (CP) and a buffered common Output Enable (OE).

The information presented to the D inputs is stored in the

flip-flops on the LOW-to-HIGH Clock (CP) transition.

The device is functionally identical to the ABT374 but has

broadside pinouts.

Features

s Inputs and outputs on opposite sides of package

allowing easy interface with microprocessors

s Useful as input or output port for microprocessors

s Functionally identical to ABT374

s 3-STATE outputs for bus-oriented applications

s Output sink capability of 64 mA, source capability

of 32 mA

s Guaranteed output skew

s Guaranteed multiple output switching specifications

s Output switching specified for both 50 pF and

250 pF loads

s Guaranteed simultaneous switching, noise level and

dynamic threshold performance

s Guaranteed latchup protection

s High impedance glitch free bus loading during entire

power up and power down cycle

s Non-destructive hot insertion capability

Ordering Code:

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

Pb-Free package per JEDEC J-STD-020B.

Connection Diagram

Pin Descriptions

Order Number

Package Number

Package Description

74ABT574CSC

M20B

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

74ABT574CSJ

M20D

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

74ABT574CMSA

MSA20

20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide

74ABT574CMTC

MTC20

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Pin Names

Description

Data Inputs

CP

Clock Pulse Input (Active Rising Edge)

OE

3-STATE Output Enable Input (Active LOW)

3-STATE Outputs