SN54AHCT595, SN74AHCT595

8BIT SHIFT REGISTERS

WITH 3STATE OUTPUT REGISTERS

SCLS374L − MAY 1997 − REVISED FEBRUARY 2004

1

POST OFFICE BOX 655303

JESD 78, Class II

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

− 1000-V Charged-Device Model (C101)

description/ordering information

The ’AHCT595 devices contain an 8-bit serial-in,

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

storage register. The storage register has parallel

3-state outputs. Separate clocks are provided for

the shift and storage registers. The shift register

has a direct overriding clear (SRCLR) input, serial

(SER) input, and serial outputs for cascading.

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

outputs are in the high-impedance state.

Both the shift register clock (SRCLK) and storage

register clock (RCLK) are positive-edge triggered.

If both clocks are connected together, the shift

register always is one clock pulse ahead of the

storage register.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP − N

Tube

SN74AHCT595N

SN74AHCT595N

SOIC − D

Tube

SN74AHCT595D

AHCT595

SOIC − D

Tape and reel

SN74AHCT595DR

AHCT595

−40

°C to 85°C

SOP − NS

Tape and reel

SN74AHCT595NSR

AHCT595

−40 C to 85 C

SSOP − DB

Tape and reel

SN74AHCT595DBR

HB595

TSSOP − PW

Tube

SN74AHCT595PW

HB595

TSSOP − PW

Tape and reel

SN74AHCT595PWR

HB595

CDIP − J

Tube

SNJ54AHCT595J

SNJ54AHCT595J

−55

°C to 125°C

CFP − W

Tube

SNJ54AHCT595W

SNJ54AHCT595W

−55 C to 125 C

LCCC − FK

Tube

SNJ54AHCT595FK

SNJ54AHCT595FK

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines

are available at www.ti.com/sc/package.

Copyright

 2004, Texas Instruments Incorporated

UNLESS OTHERWISE NOTED this document contains PRODUCTION

DATA information current as of publication date. Products conform to

specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all

parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

SN54AHCT595 ...J OR W PACKAGE

SN74AHCT595 . . . D, DB, N, NS, OR PW PACKAGE

(TOP VIEW)

SN54AHCT595 . . . FK PACKAGE

(TOP VIEW)

NC − No internal connection

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

GND

SER

OE

RCLK

SRCLK

SRCLR

4

5

6

7

8

18

17

16

15

14

SER

OE

NC

RCLK

SRCLK

NC

910 11 12 13

3

2

1 20 19