CDx4AC374, CDx4ACT374, CD74AC534 Octal D-Type Flip-Flops, 3-State Positive-

Edge Triggered

1 Features

• SCR-Latch-up-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 eight flip-flops of the ’AC374 devices are D-type

edge-triggered flip-flops. On the positive transition of

the clock (CLK) input, the Q outputs are set to the

logic levels set up at the data (D) inputs.

Device Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

BODY SIZE(3)

CDx4AC/ACT374,

CD74AC534

DW (SOIC, 20)

12.80mm × 10.3mm

12.80mm × 7.50mm

N (PDIP, 20)

24.33mm × 9.4mm

24.33mm × 6.35mm

(1)

For more information, 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.

Logic Diagram (Positive Logic)

* FAST is a Registered Trademark of Fairchild Semiconductor Corp.

CD74AC374, CD54AC374, CD54ACT374, CD74ACT374, CD74AC534

SCHS290A – DECEMBER 1998 – REVISED MARCH 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.