SN54HC594_15 Datasheet, PDF (1/26 Pages) Texas Instruments – 8-Bit Shift Registers With Output Registers

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SN54HC594, SN74HC594
SCLS040G – DECEMBER 1982 – REVISED MARCH 2015
SNx4HC594 8-Bit Shift Registers With Output Registers
1 Features
•1 Wide Operating Voltage Range of 2 V to 6 V
• High-Current Outputs Can Drive up to
15 LSTTL Loads
• Low Power Consumption, 80-µA Maximum I_CC
• Typical t_pd = 15 ns
• ±6-mA Output Drive at 5 V
• Low Input Current of 1 µA Maximum
• 8-Bit Serial-In, Parallel-Out Shift Registers With
Storage
• Independent Direct Overriding Clears on Shift and
Storage Registers
• Independent Clocks for Both Shift and
Storage Registers
2 Applications
• Pro Audio Mixer
• Elevators and Escalators
• Human Machine Interface (HMI): Industrial
Monitor
• Entertainment Systems
• Grid Infrastructure: Grid Control
• Access Control and Security: DVR and DVS
3 Description
The SNx4HC594 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.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
PDIP (16)
19.30 mm × 6.35 mm
SN74HC594
SOIC (16)
9.00 mm × 9.00 mm
10.30 mm × 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Logic Diagram (Positive Logic)
13
RCLR
12
RCLK
10
SRCLR
11
SRCLK
14
SER
1D
C1
R
R
3R
C3
3S
15
QA
2S
2R
C2
R
R
3R
C3
3S
1
QB
2S
2R
C2
R
R
3R
C3
3S
2
QC
2S
2R
C2
R
R
3R
C3
3S
3
QD
2S
2R
C2
R
R
3R
C3
3S
4
QE
2S
2R
C2
R
R
3R
C3
3S
5
QF
2S
2R
C2
R
R
3R
C3
3S
6
QG
2S
2R
C2
R
Pin numbers shown are for the D, DW, J, N, and W packages.
R
3R
C3
3S
7
QH
9
QH_′
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.