74HC PDF Datasheet – HCMOS Family Characteristics

Part Number: 74HC

Function: HCMOS family characteristics

Manufacturer: Philips

Images:74HC pdf datasheet



The 74HC series is a popular family of integrated circuits (ICs) that are part of the TTL (Transistor-Transistor Logic) logic family. These ICs are widely used for digital logic applications due to their compatibility with various TTL and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels. The “74HC” prefix indicates the specific subfamily within the broader 74xx series.

These family specifications cover the common electrical ratings and characteristics of the entire HCMOS 74HC / 74HCT / 74HCU family, unless otherwise specified in the individual device data sheet. The 74HC / 74HCT/ 74HCU high-speed Si-gate CMOS logic family combines the low power advantages of the HE4000B family with the high speed and drive capability of the low power Schottky TTL (LSTTL). The family will have the same pin-out as the 74 series and provide the same circuit functions. In these families are included several HE4000B family circuits which do not have TTL counterparts, and some special circuits.


1. Logic Family: The 74HC series is a subset of the TTL logic family, which uses bipolar transistors for its basic logic gates. While original TTL has higher power consumption and lower speed, the 74HC series offers improved power efficiency and faster operation.

2. Compatibility: One of the key advantages of the 74HC series is its compatibility with both TTL and CMOS logic levels. This means that the inputs and outputs of 74HC devices can interface with both TTL and CMOS logic systems, making them versatile in mixed-logic environments.

3. Logic Gates and Functions: The 74HC series includes a wide range of logic gates, flip-flops, counters, decoders, multiplexers, and other digital logic functions. These ICs can be used to build complex digital circuits for various applications.

74HC PDF Datasheet

74HC pdf

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