SN74AHC595_15 Datasheet, PDF (1/29 Pages) Texas Instruments – 8-Bit Shift Registers

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SN74AHC595
SCLS373K – MAY 1996 – REVISED SEPTEMBER 2015
SN74AHC595 8-Bit Shift Registers With 3-State Output Registers
1 Features
•1 Operating Range: 2-V to 5.5-V V_CC
• 8-Bit Serial-In, Parallel-Out Shift
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
2 Applications
• Network Switches
• Power Infrastructures
• LED Displays
• Servers
3 Description
The SN74AHC595 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, a serial
(SER) input, and a serial output for cascading. When
the output-enable (OE) input is high, all outputs
except QH′ are in the high-impedance state.
PART NUMBER
SN74AHC595N
SN74AHC595D
SN74AHC595DB
SN74AHC595PW
Device Information
PACKAGE
BODY SIZE (NOM)
PDIP (16)
19.31 mm × 6.35 mm
SOIC (16)
9.90 mm × 3.90 mm
SSOP (16)
6.20 mm × 5.30 mm
TSSOP (16)
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
13
OE
12
RCLK
10
SRCLR
11
SRCLK
14
SER
Logic Diagram (Positive Logic)
1D Q
C1
R
3D
C3 Q
15
QA
2D Q
C2
R
3D
C3 Q
1
QB
2D Q
C2
R
3D
C3 Q
2
QC
2D Q
C2
R
3D
C3 Q
3
QD
2D Q
C2
R
2D Q
C2
R
2D Q
C2
R
3D
C3 Q
3D
C3 Q
3D
C3 Q
4
QE
5
QF
6
QG
2D Q
C2
R
3D
C3 Q
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. PRODUCTION DATA.