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SN74HC164
  • SN74HC164
  • SN74HC164
  • SN74HC164
  • SN74HC164
  • SN74HC164

SN74HC164

ACTIVE

8-Bit Parallel-Out Serial Shift Registers

Texas Instruments SN74HC164 Product Info

1 April 2026 1

Parameters

Configuration

Serial-in, Parallel-out

Bits (#)

8

Technology family

HC

Supply voltage (min) (V)

2

Supply voltage (max) (V)

6

Input type

Standard CMOS

Output type

Push-Pull

Clock frequency (MHz)

24

IOL (max) (mA)

5.2

IOH (max) (mA)

-5.2

Supply current (max) (µA)

80

Features

Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Package

PDIP (N)-14-181.42 mm² 19.3 x 9.4

Features

  • Wide Operating Voltage Range of 2 V to 6 V
  • Outputs Can Drive Up to 10 LSTTL Loads
  • Low Power Consumption, 80-µA Maximum ICC
  • Typical tpd = 20 ns
  • ±4-mA Output Drive at 5 V
  • Low Input Current of 1-µA Maximum
  • AND-Gated (Enable/Disable) Serial Inputs
  • Fully Buffered Clock and Serial Inputs
  • Direct Clear
  • On Products Compliant to MIL-PRF-38535,
    All Parameters Are Tested Unless Otherwise
    Noted. On All Other Products, Production
    Processing Does Not Necessarily Include
    Testing of All Parameters.
  • Wide Operating Voltage Range of 2 V to 6 V
  • Outputs Can Drive Up to 10 LSTTL Loads
  • Low Power Consumption, 80-µA Maximum ICC
  • Typical tpd = 20 ns
  • ±4-mA Output Drive at 5 V
  • Low Input Current of 1-µA Maximum
  • AND-Gated (Enable/Disable) Serial Inputs
  • Fully Buffered Clock and Serial Inputs
  • Direct Clear
  • On Products Compliant to MIL-PRF-38535,
    All Parameters Are Tested Unless Otherwise
    Noted. On All Other Products, Production
    Processing Does Not Necessarily Include
    Testing of All Parameters.

Description

These 8-bit shift registers feature AND-gated serial inputs and an asynchronous clear (CLR) input. The gated serial (A and B) inputs permit complete control over incoming data; a low at either input inhibits entry of the new data and resets the first flip-flop to the low level at the next clock (CLK) pulse. A high-level input enables the other input, which then determines the state of the first flip-flop. Data at the serial inputs can be changed while CLK is high or low, provided the minimum set-up time requirements are met. Clocking occurs on the low-to-high-level transition of CLK.

These 8-bit shift registers feature AND-gated serial inputs and an asynchronous clear (CLR) input. The gated serial (A and B) inputs permit complete control over incoming data; a low at either input inhibits entry of the new data and resets the first flip-flop to the low level at the next clock (CLK) pulse. A high-level input enables the other input, which then determines the state of the first flip-flop. Data at the serial inputs can be changed while CLK is high or low, provided the minimum set-up time requirements are met. Clocking occurs on the low-to-high-level transition of CLK.

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