CDx4AC164, CDx4ACT164 8-Bit Serial-In/Parallel-Out Shift Register

1 Features

• Buffered inputs

• Typical propagation delay

– 6ns at VCC = 5V, T A = 25°C, CL = 50pF

• 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 50Ω transmission lines

2 Description

The ’AC164 and ’ACT164 are 8-bit serial-in/parallel-

out shift registers with asynchronous reset that utilize

Advanced CMOS Logic technology.

Device Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

BODY SIZE(3)

CDx4AC(T)164

BQA (WQFN, 14)

3mm × 2.5mm

3mm × 2.5mm

D (SOIC, 14)

8.65mm × 6mm

8.65mm × 3.9mm

N (PDIP, 14)

19.3mm x 9.4mm

19.3mm x 6.35mm

PW (TSSOP, 14)

5mm x 6.4mm

5mm x 4.4mm

(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.

CLR

A

CLK

D

R

Q

5 Additional

Shift Register

Stages

B

D

R

Q

QH

QG

QF

QE

QD

QC

QB

QA

D

R

Q

Functional Diagram

CD54AC164, CD74AC164, CD54ACT164, CD74ACT164

SCHS240D – NOVEMBER 1998 – REVISED OCTOBER 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.