General description

The 74HC373; 74HCT373 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL. It is specified in compliance with JEDEC standard no. 7A.
The 74HC373; 74HCT373 is an octal D-type transparent latch 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 74HC373; 74HCT373 consists of eight D-type transparent latches with 3-state true outputs. When LE is HIGH, data at the Dn inputs enters the latches. In this condition the latches are transparent, i.e. a latch output will change state each time its corresponding D input changes.
When LE is LOW the latches store the information that was present at the D inputs a set-up time preceding the HIGH-to-LOW transition of LE. When OE is LOW, the contents of the 8 latches are available at the outputs. When OE is HIGH, the outputs go to the high impedance OFF-state. Operation of the OE input does not affect the state of the latches.

The 74HC373; 74HCT373 is functionally identical to:

• 74HC563; 74HCT563: but inverted outputs and different pin arrangement
• 74HC573; 74HCT573: but different pin arrangement

Features and benefits

■ 3-state non-inverting outputs for bus oriented applications
■ Common 3-state output enable input
■ Functionally identical to the 74HC563; 74HCT563 and 74HC573; 74HCT573
■ ESD protection:
◆ HBM JESD22-A114F exceeds 2 000 V
◆ MM JESD22-A115-A exceeds 200 V
■ Specified from -40 °C to +85 °C and from -40 °C to +125 °C