SN74AC596-Q1 Automotive 8-Bit Shift Register With Open-Drain Output Registers

1 Features

• AEC-Q100 qualified for automotive applications:

– Device temperature grade 1: -40°C to +125°C

– Device HBM ESD classification level 2

– Device CDM ESD classification level C4B

• Available in wettable flank QFN package

• Wide operating range of 1.5V to 6V

• Inputs accept voltages up to 6V

• Continuous ±24mA output drive at 5V

• Supports up to ±75mA output drive at 5V

in short bursts

• Drives 50Ω transmission lines

• Maximum tpd of 11.4ns at 5V, 50pF load

2 Applications

• Increase the number of outputs on a

microcontroller

• Store up to 8 bits of data temporarily

3 Description

The SN74AC596-Q1 device contains an 8-bit, serial-

in, parallel-out shift register that feeds an 8-bit D-type

storage register. The storage register has parallel

open-drain outputs. Separate clocks are provided

for both the shift and storage register. The shift

register has a direct overriding clear (SRCLR) input,

serial (SER) input, and a serial output (QH') for

cascading. When the output-enable (OE) input is high,

the outputs are in a high-impedance state. Internal

register data is not impacted by the operation of the

OE input.

Device Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

BODY SIZE(3)

SN74AC596-Q1

BQB (WQFN, 16)

3.5mm × 2.5mm

3.5mm × 2.5mm

PW (TSSOP , 16)

5mm x 6.4mm

5mm x 4.4mm

(1)

For more information, see Section 11.

(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.

RCLK

OE

SRCLR

SRCLK

SER

13

12

10

11

14

D

R

15

1

Q

A

Q

B

Q

C

Q

D

R

Q

D

Q

D

Q

2

Q

D

3

Q

E

4

Q

F

5

Q

G

6

D

R

7

9

Q

H’

Q

D

Q

Q

H

Functional Diagram

SN74AC596-Q1

SCASE43 – NOVEMBER 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.