SN54HC595 Datasheet, PDF (1/9 Pages) Texas Instruments – 8-BIT SHIFT REGISTERS WITH 3-STATE OUTPUT REGISTERS

D 8-Bit Serial-In, Parallel-Out Shift
D High-Current 3-State Outputs Can Drive up
to 15 LSTTL Loads
D Shift Register Has Direct Clear
D Package Options Include Plastic
Small-Outline (D) and Ceramic Flat (W)
Packages, Ceramic Chip Carriers (FK), and
Standard Plastic (N) and Ceramic (J)
300-mil DIPs
description
The ’HC595 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 register. The shift register has a
direct overriding clear (SRCLR) input, serial
(SER) input, and serial outputs for cascading.
Both the shift register clock (RCLK) and storage
register clock (SRCLK) are positive-edge trig-
gered. If both clocks are connected together, the
shift register is always one clock pulse ahead of
the storage register.
The SN54HC595 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74HC595 is characterized for
operation from –40°C to 85°C.
SN54HC595, SN74HC595
8-BIT SHIFT REGISTERS
WITH 3-STATE OUTPUT REGISTERS
SCLS041B – DECEMBER 1982 – REVISED MAY 1997
SN54HC595 . . . J OR W PACKAGE
SN74HC595 . . . D OR N 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′
SN54HC595 . . . 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
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is 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 © 1997, Texas Instruments Incorporated
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