The 74HC/HCT563 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT563 are octal D-type transparent latches featuring separate D-type inputs for each latch and inverting 3-state outputs for bus oriented applications. A latch enable (LE) input and an output enable (OE) input are common to all latches.
The document is a product specification sheet for the Philips 74HC/HCT563 integrated circuit. It describes the device as high-speed Si-gate CMOS chips that are pin-compatible with low power Schottky TTL (LSTTL). The chip features eight D-type transparent latches with common latch enable and output enable inputs, designed for bus-oriented applications.
| Device Type | Octal D-type transparent latch; 3-state; inverting |
|---|---|
| Output Capability | bus driver |
| ICC Category | MSI |
The LE (latch enable) input controls when data enters the latches; when HIGH, the latches are transparent.
When OE (output enable) is HIGH, the outputs go to the high impedance OFF-state.