SN74HC594DR Datasheet, PDF (1/18 Pages) Texas Instruments – 8-BIT SHIFT REGISTERS WITH OUTPUT REGISTERS

D Wide Operating Voltage Range of 2 V to 6 V
D High-Current Outputs Can Drive Up To
15 LSTTL Loads
D Low Power Consumption, 80-µA Max I_CC
D Typical t_pd = 15 ns
D ±6-mA Output Drive at 5 V
SN54HC594 . . . J OR W PACKAGE
SN74HC594 . . . D, DW, 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 RCLR
12 RCLK
11 _SRCLK
10 _SRCLR
9 _QH′
SN54HC594, SN74HC594
8ĆBIT SHIFT REGISTERS
WITH OUTPUT REGISTERS
SCLS040F − DECEMBER 1982 − REVISED OCTOBER 2003
D Low Input Current of 1 µA Max
D 8-Bit Serial-In, Parallel-Out Shift Registers
With Storage
D Independent Direct Overriding Clears on
Shift and Storage Registers
D Independent Clocks for Both Shift and
Storage Registers
SN54HC594 . . . FK PACKAGE
(TOP VIEW)
Q_D
3 2 1 20 19
4
18
SER
Q_E 5
17 ^RCLR
NC 6
16 NC
Q_F 7
15 RCLK
Q_G
8
14 SRCLK
9 10 11 12 13
description/ordering information
NC − No internal connection
The ’HC594 devices contain an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage
register. Separate clocks and direct overriding clear (RCLR, SRCLR) inputs are provided on both the shift and
storage registers. A serial (Q_H′) output is provided for cascading purposes.
Both the shift register (SRCLK) and storage register (RCLK) clocks are positive edge triggered. If both clocks
are connected together, the shift register always is one count pulse ahead of the storage register.
The parallel (Q_A−Q_H) outputs have high-current capability. Q_H′ is a standard output.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube of 25
SN74HC594N
SN74HC594N
Tube of 40
SN74HC594D
−40°C to 85°C
SOIC − D
Reel of 2500
Reel of 250
SN74HC594DR
SN74HC594DT
HC594
SOIC − DW
Tube of 40
Reel of 2000
SN74HC594DW
SN74HC594DWR
HC594
CDIP − J
Tube of 25
SNJ54HC594J
SNJ54HC594J
−55°C to 125°C CFP − W
Tube of 150
SNJ54HC594W
SNJ54HC594W
LCCC − FK
Tube of 55
SNJ54HC594FK
SNJ54HC594FK
† _{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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