SN54AHC595 Datasheet, PDF (1/17 Pages) Texas Instruments – 8-BIT SHIFT REGISTERS WITH 3-STATE OUTPUT REGISTERS

SN54AHC595, SN74AHC595
8ĆBIT SHIFT REGISTERS
WITH 3ĆSTATE OUTPUT REGISTERS
SCLS373I − MAY 1997 − REVISED JUNE 2004
D Operating Range 2-V to 5.5-V V_CC
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
SN54AHC595 . . . J OR W PACKAGE
SN74AHC595 . . . 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′
The ’AHC595 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
both the shift and storage registers. The shift
register has a direct overriding clear (SRCLR)
input, serial (SER) input, and a serial output for
cascading. When the output-enable (OE) input is
high, all outputs, except Q_H′, 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.
SN54AHC595 . . . FK PACKAGE
(TOP VIEW)
Q_D
3 2 1 20 19
4
18
SER
Q_E 5
17 OE
NC 6
16 NC
Q_F 7
15 RCLK
Q_G 8
14 SRCLK
9 10 11 12 13
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube
SN74AHC595N
SN74AHC595N
SOIC − D
Tube
Tape and reel
SN74AHC595D
SN74AHC595DR
AHC595
−40°C to 85°C
SOP − NS
Tape and reel SN74AHC595NSR
AHC595
SSOP − DB
Tape and reel SN74AHC595DBR
HA595
TSSOP − PW
Tube
Tape and reel
SN74AHC595PW
SN74AHC595PWR
HA595
CDIP − J
Tube
SNJ54AHC959J
SNJ54AHC595J
−55°C to 125°C CFP − W
Tube
SNJ54AHC595W
SNJ54AHC595W
LCCC − FK
Tube
SNJ54AHC595FK
SNJ54AHC595FK
† _{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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Copyright  2004, Texas Instruments Incorporated
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