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SCLS041G − DECEMBER 1982 − REVISED FEBRUARY 2004
SN54HC595 . . . J OR W PACKAGE
SN74HC595 . . . D, DB, DW, N, OR NS PACKAGE
(TOP VIEW)
D
D
D
D
D
D
D
D
8-Bit Serial-In, Parallel-Out Shift
Wide Operating Voltage Range of 2 V to 6 V
High-Current 3-State Outputs Can Drive Up
To 15 LSTTL Loads
Q
Q
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
B
Q
C
D
A
Low Power Consumption, 80-µA Max I
Typical t = 13 ns
pd
6-mA Output Drive at 5 V
CC
Q
SER
OE
Q
E
Q
12 RCLK
F
Low Input Current of 1 µA Max
Shift Register Has Direct Clear
11
10
9
Q
SRCLK
SRCLR
G
Q
H
GND
Q
H′
description/ordering information
SN54HC595 . . . FK PACKAGE
(TOP VIEW)
The ’HC595 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 register. 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.
3
2
1
20 19
18
SER
OE
Q
4
5
6
7
8
D
Q
17
16
E
NC
NC
15 RCLK
14
9 10 11 12 13
Q
F
SRCLK
Q
G
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.
NC − No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
SOIC − D
Tube of 25
Tube of 40
Reel of 2500
Reel of 250
Tube of 40
Reel of 2000
Reel of 2000
Reel of 2000
Tube of 25
Tube of 150
Tube of 55
SN74HC595N
SN74HC595N
SN74HC595D
SN74HC595DR
SN74HC595DT
SN74HC595DW
SN74HC595DWR
SN74HC595NSR
SN74HC595DBR
SNJ54HC595J
SNJ54HC595W
SNJ54HC595FK
HC595
−40°C to 85°C
SOIC − DW
HC595
SOP − NS
SSOP − DB
CDIP − J
HC595
HC595
SNJ54HC595J
SNJ54HC595W
SNJ54HC595FK
−55°C to 125°C
CFP − W
LCCC − FK
†
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.
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Copyright 2004, Texas Instruments Incorporated
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