This document describes the features and characteristics of the 74HC/HCT574 octal D-type flip-flop with positive edge-trigger and 3-state non-inverting outputs for bus oriented applications.
The document is a product specification for the 74HC/HCT574 integrated circuit. It details features such as 8-bit positive edge-triggered registers and common 3-state output enable inputs, noting compatibility with low power Schottky TTL (LSTTL). The device includes separate D-type inputs for each flip-flop and non-inverting 3-state outputs suitable for bus-oriented applications.
| Number of Flip-Flops | Octal (8) |
|---|---|
| Output Type | 3-state non-inverting |
| Clock Triggering | Positive edge-triggered |
| Operating Temperature Range (74HC) | -40 to +85 °C |
The '574' is functionally identical to the '374', but it has a different pinning.
When OE is LOW, outputs are available; when HIGH, they go to high impedance. Operation of OE does not affect the state of the flip-flops.