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74HC573 - Octal D-type transparent latch

General Description

The 74HC573; 74HCT573 is an 8-bit D-type transparent latch with 3-state outputs.

Key Features

  • Input levels:.
  • For 74HC573: CMOS level.
  • For 74HCT573: TTL level.
  • Inputs and outputs on opposite sides of package allowing easy interface with microprocessors.
  • Useful as input or output port for microprocessors and microcomputers.
  • 3-state non-inverting outputs for bus-oriented.

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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.

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74HC573; 74HCT573 Octal D-type transparent latch; 3-state Rev. 7 — 4 March 2016 Product data sheet 1. General description The 74HC573; 74HCT573 is an 8-bit D-type transparent latch with 3-state outputs. The device features latch enable (LE) and output enable (OE) inputs. When LE is HIGH, data at the inputs enter the latches. In this condition the latches are transparent, a latch output will change each time its corresponding D-input changes. When LE is LOW the latches store the information that was present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the latches. Inputs include clamp diodes.