The 74HC373 are high-speed Si-gate CMOS devices
and are pin compatible with low power Schottky TTL
(LSTTL). The 74HC373 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 74HC373 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.
3-state non-inverting outputs for bus oriented applications
Common 3-state output enable input
Functionally identical to the “563”, “573” and “533”
Output capability: bus driver
ICC category: MSI
SOIC 20 package. Actual brand may vary from picture.