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SCHS353 − JANUARY 2004
DW, E, M, NS, OR SM 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
Q
SER
OE
Low Power Consumption, 80-µA Max I
Typical t = 14 ns
pd
6-mA Output Drive at 5 V
CC
Q
E
Q
12 RCLK
F
11
10
9
Q
SRCLK
SRCLR
G
Low Input Current of 1 µA Max
Shift Register Has Direct Clear
Q
H
GND
Q
H′
description/ordering information
The CD74HC595 device contains 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 serial
output 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
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − E
Tube of 25
Tube of 40
Reel of 2000
Tube of 40
Reel of 2500
Reel of 250
Reel of 2000
Tube of 80
Reel of 2000
CD74HC595E
CD74HC595E
CD74HC595DW
CD74HC595DWR
CD74HC595M
SOIC − DW
HC595M
−55°C to 125°C
CD74HC595M96
CD74HC595MT
CD74HC595NSR
CD74HC595SM
CD74HC595SM96
SOIC − M
HC595M
SOP − NS
HC595M
HJ595
SSOP − SM
†
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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1
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