HCMOS 74HC/HCT/HCU family characteristics
This document provides the family specifications for Philips' high‑speed CMOS (HCMOS) logic series 74HC, 74HCT and 74HCU. It covers common electrical ratings, recommended operating conditions, DC and AC characteristics, and definitions of symbols used in the data sheets.
The handbook includes tables for supply voltage ranges, input and output voltage levels, power dissipation, temperature limits, and switching parameters, as well as test‑circuit diagrams and detailed explanations of terms such as quiescent current and propagation delay.
| Supply voltage (VCC) range | 2.0 V – 6.0 V |
|---|---|
| Operating ambient temperature range | -40 °C to +125 °C |
| Input leakage current (±II) | 0.1 µA – 1.0 µA |
The recommended VCC range for 74HC devices is 2.0 V to 6.0 V.
The family is rated for an ambient temperature up to +125 °C.