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Philips 74HC573; 74HCT573 Octal D-type Transparent Latch Datasheet
This document is a product data sheet for the Philips 74HC573 and 74HCT573, which are high-speed Si-gate CMOS devices. These chips feature octal D-type transparent latches with separate inputs for each latch and 3-state true outputs designed for bus-oriented applications. They are pin-compatible with Low-power Schottky TTL (LSTTL) and functionally identical to the 74HC563/74HCT563 and 74HC373/74HCT373 series, though with different pin arrangements or inverted outputs depending on the specific comparison.
Read onlinePhilips HCT573 specifications
| Device Type | Octal D-type transparent latch; 3-state |
|---|---|
| Propagation Delay (Dn to Qn) | 14 ns (typical) |
| Input Capacitance | 3.5 pF |
| Power Dissipation per Latch | 26 pF (dynamic) |
| Supply Voltage Range (74HC573) | 2.0 V to 6.0 V |
| Operating Temperature Range | -40 °C to +125 °C |
Source: Philips 74HC573; 74HCT573 Octal D-type Transparent Latch Datasheet
All Philips HCT573 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the function of the LE input?
When LE is HIGH, data at the Dn inputs enter the latches, making them transparent. When LE is LOW, the latches store the information present at the D-inputs.
From: Philips 74HC573; 74HCT573 Octal D-type Transparent Latch Datasheet
What happens when the OE input is HIGH?
When OE is HIGH, the outputs go to the high-impedance OFF-state, allowing the device to be used in bus-oriented applications.
From: Philips 74HC573; 74HCT573 Octal D-type Transparent Latch Datasheet
What happens when OE is LOW?
The contents of the 8 latches are available at the outputs.
From: philips 74HC/HCT573 Octal D-type transparent latch 3-state handbook
What is the function of the OE input on the 74HC/HCT573?
When the OE input is LOW, the contents of the latches are available at the outputs, and when it is HIGH, the outputs go to the high impedance OFF-state.
From: philips 74HC/HCT573 Octal D-type transparent latch 3-state handbook