This is a document introducing the characteristics of the HCMOS 74HC/HCT/HCU series logic circuits
This document provides family specifications for the Philips 74HC, 74HCT, and 74HCU high-speed CMOS logic families. It covers common electrical ratings and characteristics applicable to the entire family unless specified otherwise in individual device data sheets. The 74HC series operates at CMOS input logic levels with negligible quiescent supply current, while the 74HCT subset is designed for pin-to-pin compatibility with TTL logic levels.
| Supply Voltage Range (74HC) | 2.0 to 6.0 V |
|---|---|
| Supply Voltage Range (74HCT) | 4.5 to 5.5 V |
| Operating Temperature Range | -40 to +85 °C |
| Operating Temperature Range (Extended) | -40 to +125 °C |
| Quiescent Supply Current (SSI) | 20.0 µA |
The 74HC family operates from a power supply of 2 to 6 V.
The 74HCT subset operates at standard TTL power supply voltage and logic input levels for use as pin-to-pin compatible CMOS replacements.
Yes, inputs and outputs are protected against electrostatic effects in a wide variety of device-handling situations.