The 74HC/HCT273 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL).
The Philips 74HC/HCT273 is a high-speed Si-gate CMOS device containing eight edge-triggered, D-type flip-flops with individual D inputs and Q outputs. It features a common clock (CP) and master reset (MR) input that allows all flip-flops to be loaded and reset simultaneously. The device is pin compatible with low power Schottky TTL (LSTTL) and is specified in compliance with JEDEC standard no. 7A.
| Number of flip-flops | Eight |
|---|---|
| Trigger type | Positive-edge |
| Maximum clock frequency (74HC) | 66 MHz |
| Propagation delay CP to Qn (typical) | 15 ns |
| Input capacitance | 3.5 pF |
A LOW voltage level on the MR input forces all outputs LOW independently of clock or data inputs.
The device contains eight positive edge-triggered D-type flip-flops.