C0083C0078C0053C0052C0072C0067C0053C0057C0053C0044 C0083C0078C0055C0052C0072C0067C0053C0057C0053
C0056C0262C0066C0073C0084 C0083C0072C0073C0070C0084 C0082C0069C0071C0073C0083C0084C0069C0082C0083
C0087C0073C0084C0072 C0051C0262C0083C0084C0065C0084C0069 C0079C0085C0084C0080C0085C0084 C0082C0069C0071C0073C0083C0084C0069C0082C0083
SCLS041G − DECEMBER 1982 − REVISED FEBRUARY 2004
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
C0068 8-Bit Serial-In, Parallel-Out Shift
C0068 Wide Operating Voltage Range of 2 V to 6 V
C0068 High-Current 3-State Outputs Can Drive Up
To 15 LSTTL Loads
C0068 Low Power Consumption, 80-µA Max I
CC
C0068 Typical t
pd
= 13 ns
C0068 ±6-mA Output Drive at 5 V
C0068 Low Input Current of 1 µA Max
C0068 Shift Register Has Direct Clear

description/ordering information
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.
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
T
A
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N Tube of 25 SN74HC595N SN74HC595N
Tube of 40 SN74HC595D
SOIC − D
Reel of 2500 SN74HC595DR
HC595
−40°C to 85°C
Reel of 250 SN74HC595DT
SOIC − DW
Tube of 40 SN74HC595DW
HC595
Reel of 2000 SN74HC595DWR
SOP − NS Reel of 2000 SN74HC595NSR HC595
SSOP − DB Reel of 2000 SN74HC595DBR HC595
CDIP − J Tube of 25 SNJ54HC595J SNJ54HC595J
−55°C to 125°C CFP − W Tube of 150 SNJ54HC595W SNJ54HC595W
LCCC − FK Tube of 55 SNJ54HC595FK SNJ54HC595FK
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Copyright  2004, Texas Instruments IncorporatedC0080C0082C0079C0068C0085C0067C0084C0073C0079C0078 C0068C0065C0084C0065 C0105C0110C0102C0111C0114C0109C0097C0116C0105C0111C0110 C0105C0115 C0099C0117C0114C0114C0101C0110C0116 C0097C0115 C0111C0102 C0112C0117C0098C0108C0105C0099C0097C0116C0105C0111C0110 C0100C0097C0116C0101C0046
C0080C0114C0111C0100C0117C0099C0116C0115 C0099C0111C0110C0102C0111C0114C0109 C0116C0111 C0115C0112C0101C0099C0105C0102C0105C0099C0097C0116C0105C0111C0110C0115 C0112C0101C0114 C0116C0104C0101 C0116C0101C0114C0109C0115 C0111C0102 C0084C0101C0120C0097C0115 C0073C0110C0115C0116C0114C0117C0109C0101C0110C0116C0115
C0115C0116C0097C0110C0100C0097C0114C0100 C0119C0097C0114C0114C0097C0110C0116C0121C0046 C0080C0114C0111C0100C0117C0099C0116C0105C0111C0110 C0112C0114C0111C0099C0101C0115C0115C0105C0110C0103 C0100C0111C0101C0115 C0110C0111C0116 C0110C0101C0099C0101C0115C0115C0097C0114C0105C0108C0121 C0105C0110C0099C0108C0117C0100C0101
C0116C0101C0115C0116C0105C0110C0103 C0111C0102 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115C0046
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.
SN54HC595 ...J OR W PACKAGE
SN74HC595 . . . D, DB, DW, N, OR NS PACKAGE
(TOP VIEW)
SN54HC595 . . . FK PACKAGE
(TOP VIEW)
NC − No internal connection
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Q
B
Q
C
Q
D
Q
E
Q
F
Q
G
Q
H
GND
V
CC
Q
A
SER
OE
RCLK
SRCLK
SRCLR
Q
H′
3212019
91011 1213
4
5
6
7
8
18
17
16
15
14
SER
OE
NC
RCLK
SRCLK
Q
D
Q
E
NC
Q
F
Q
G
Q NC
SRCLR
H
GND
NC
C
Q
B
V
CC
Q
A
Q
H
Q
′
C0079C0110 C0112C0114C0111C0100C0117C0099C0116C0115 C0099C0111C0109C0112C0108C0105C0097C0110C0116 C0116C0111 C0077C0073C0076C0262C0080C0082C0070C0262C0051C0056C0053C0051C0053C0044 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115 C0097C0114C0101 C0116C0101C0115C0116C0101C0100
C0117C0110C0108C0101C0115C0115 C0111C0116C0104C0101C0114C0119C0105C0115C0101 C0110C0111C0116C0101C0100C0046 C0079C0110 C0097C0108C0108 C0111C0116C0104C0101C0114 C0112C0114C0111C0100C0117C0099C0116C0115C0044 C0112C0114C0111C0100C0117C0099C0116C0105C0111C0110
C0112C0114C0111C0099C0101C0115C0115C0105C0110C0103 C0100C0111C0101C0115 C0110C0111C0116 C0110C0101C0099C0101C0115C0115C0097C0114C0105C0108C0121 C0105C0110C0099C0108C0117C0100C0101 C0116C0101C0115C0116C0105C0110C0103 C0111C0102 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115C0046