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74HC594D - 8-bit shift register

Download the 74HC594D datasheet PDF. This datasheet also covers the 74HC594 variant, as both devices belong to the same 8-bit shift register family and are provided as variant models within a single manufacturer datasheet.

General Description

The 74HC594; 74HCT594 is an 8-bit serial-in/serial or parallel-out shift register with a storage register.

Separate clock and reset inputs are provided on both shift and storage registers.

Key Features

  • Synchronous serial input and output.
  • 8-bit parallel output.
  • Shift and storage registers have independent direct clear and clocks.
  • Independent clocks for shift and storage registers.
  • 100 MHz (typical).
  • Wide supply voltage range from 2.0 V to 6.0 V.
  • CMOS low power dissipation.
  • High noise immunity.
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
  • Input levels:.
  • For 74HC594: CMOS leve.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (74HC594-nexperia.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
74HC594; 74HCT594 8-bit shift register with output register Rev. 7 — 20 October 2022 Product data sheet 1. General description The 74HC594; 74HCT594 is an 8-bit serial-in/serial or parallel-out shift register with a storage register. Separate clock and reset inputs are provided on both shift and storage registers. The device features a serial input (DS) and a serial output (Q7S) to enable cascading. Data is shifted on the LOW-to-HIGH transitions of the SHCP input, and the data in the shift register is transferred to the storage register on a LOW-to-HIGH transition of the STCP input. If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register.