SN54AHCT595 Datasheet, PDF (1/16 Pages) Texas Instruments – 8-BIT SHIFT REGISTERS WITH 3-STATE OUTPUT REGISTERS

D Inputs Are TTL-Voltage Compatible
D 8-Bit Serial-In, Parallel-Out Shift
D Shift Register Has Direct Clear
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 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.
SN54AHCT595, SN74AHCT595
8ĆBIT SHIFT REGISTERS
WITH 3ĆSTATE OUTPUT REGISTERS
SCLS374L − MAY 1997 − REVISED FEBRUARY 2004
SN54AHCT595 . . . J OR W PACKAGE
SN74AHCT595 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
Q_{B 1}
Q_C 2
Q_D 3
Q_E 4
Q_F 5
Q_G 6
Q_H 7
GND 8
16 ^V_CC
15 Q_A
14 SER
13 OE
12 RCLK
11 SRCLK
10 SRCLR
9 Q_H′
SN54AHCT595 . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
Q_{D 4}
18 ^SER
Q_E 5
17 OE
NC 6
16 NC
Q_F 7
15 RCLK
Q_G
8
14
9 10 11 12 13
SRCLK
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube
SN74AHCT595N
SN74AHCT595N
SOIC − D
Tube
Tape and reel
SN74AHCT595D
SN74AHCT595DR
AHCT595
−40°C to 85°C
SOP − NS
SSOP − DB
Tape and reel
Tape and reel
SN74AHCT595NSR
SN74AHCT595DBR
AHCT595
HB595
TSSOP − PW
Tube
Tape and reel
SN74AHCT595PW
SN74AHCT595PWR
HB595
CDIP − J
Tube
SNJ54AHCT595J
SNJ54AHCT595J
−55°C to 125°C CFP − W
Tube
SNJ54AHCT595W
SNJ54AHCT595W
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.
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.
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.
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