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SN74HC595B

ACTIVE

8-Bit Shift Registers With 3-State Output

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Data sheet

SN74HC595B

ACTIVE
Data sheet Order now

Product details

Configuration Serial-in, Parallel-out Bits (#) 8 Technology family HC Input type Standard CMOS Output type 3-State Clock frequency (MHz) 24 IOL (max) (mA) 7.8 IOH (max) (mA) -7.8 Supply current (max) (µA) 160 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
Configuration Serial-in, Parallel-out Bits (#) 8 Technology family HC Input type Standard CMOS Output type 3-State Clock frequency (MHz) 24 IOL (max) (mA) 7.8 IOH (max) (mA) -7.8 Supply current (max) (µA) 160 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
X1QFN (RWN) 16 6.25 mm² (2.5 mm × 2.5 mm)
  • 8-Bit Serial-In, Parallel-Out Shift Registers
  • Available in Ultra Small Logic QFN package(0.5 mm
    max height)
  • Over-Voltage Tolerant on Inputs Independent of Vcc
  • Wide Operating Voltage Range of 2 V to 6 V
  • High-Current 3-State Outputs Can Drive Up to 15
    LSTTL Loads
  • Low Power Consumption: 80-µA (Maximum) ICC
  • tpd = 13 ns (Typical)
  • ±6-mA Output Drive at 5 V
  • Low Input Current: 1 µA (Maximum)
  • Shift Register Has Direct Clear
  • -55oC to 125oC Operating Temperature
  • 8-Bit Serial-In, Parallel-Out Shift Registers
  • Available in Ultra Small Logic QFN package(0.5 mm
    max height)
  • Over-Voltage Tolerant on Inputs Independent of Vcc
  • Wide Operating Voltage Range of 2 V to 6 V
  • High-Current 3-State Outputs Can Drive Up to 15
    LSTTL Loads
  • Low Power Consumption: 80-µA (Maximum) ICC
  • tpd = 13 ns (Typical)
  • ±6-mA Output Drive at 5 V
  • Low Input Current: 1 µA (Maximum)
  • Shift Register Has Direct Clear
  • -55oC to 125oC Operating Temperature

The SN74HC595B 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 register 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 all outputs are in the high-impedance state except QH’.

The SN74HC595B 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 register 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 all outputs are in the high-impedance state except QH’.
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Technical documentation

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* Data sheet SN74HC595B 8-Bit Shift Registers With 3-State Output Registers datasheet PDF | HTML Feb 15, 2016
Application note Increase the Number of Outputs on a Microcontroller PDF | HTML Oct 27, 2020
Technical article The next-generation QFN: Do you have what it takes to use it? PDF | HTML Sep 14, 2016

Design & development

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Simulation model

SN74HC595B IBIS Model

SCLM118.ZIP (77 KB) - IBIS model
Supported products & hardware
Reference design

TIDA-01233 — Ultra-Small, Flexible LED Expansion Reference Design

This document focuses on two reference designs using the SN74HC595B 8-bit Shift Register with 3-State Output Registers and the SN74LVC244A Octal Buffer with 3-State Outputs, each used to expand three general purpose outputs on a microcontroller to eight or more general purpose outputs. Both (...)
Supported products & hardware
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X1QFN (RWN) 16 Ultra Librarian
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