74HC574D Octal D-type flip-flop; positive edge-trigger; 3-state microwave integrated circuits

74HC574D Octal D-type flip-flop; positive edge-trigger; 3-state microwave integrated circuits

FEATURES

• Inputs and outputs on opposite sides of package allowing easy interface with microprocessors

• Useful as input or output port for microprocessors/microcomputers

• 3-state non-inverting outputs for bus oriented applications

• Common 3-state output enable input

• Functionally identical to the “563” and “373”

• Output capability: bus driver

• ICC category: MSI

GENERAL DESCRIPTION

The 74HC/HCT573 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The 74HC/HCT573 are octal D-type transparent latches featuring separate D-type inputs for each latch and 3-state outputs for bus oriented applications.

A latch enable (LE) input and an output enable (OE) input are common to all latches.

The “573” consists of eight D-type transparent latches with 3-state true outputs. When LE is HIGH, data at the Dn inputs enter the latches. In this condition the latches are transparent, i.e. a latch output will change state each time its corresponding D-input changes.

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