CDx4AC574, CDx4ACT574 Octal D-Type Flip-Flop, 3-State Positive-Edge-Triggered

1 Features

• SCR-latchup-resistant CMOS process and circuit

design

• Speed of bipolar FAST*/AS/S with significantly

reduced power consumption

• Balanced propagation delays

• AC types feature 1.5V to 5.5V operation and

balanced noise immunity at 30% of the supply

• ± 24mA output drive current

– Fanout to 15 FAST* ICs

– Drives 50ohm transmission lines

2 Description

The CDx4AC574 and the CDx4ACT574 octal D-type,

3-state, positive-edge-triggered flip-flops use the RCA

ADVANCED CMOS technology.

Device Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

BODY SIZE(3)

CDx4AC/ACT574

DW (SOIC, 20)

12.80mm × 10.3mm 12.80mm × 7.50mm

N (PDIP, 20)

24.33mm × 9.4mm

24.33mm × 6.35mm

(1)

For all available packages, see Section 10.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

(3)

The body size (length × width) is a nominal value and does

not include pins.

Functional Block Diagram

*FAST is a Registered Trademark of Fairchild Semiconductor Corp.

CD54AC574, CD74AC574, CD54ACT574, CD74ACT574

SCHS292A – DECEMBER 1998 – REVISED MAY 2024

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.