This manual provides basic specifications and characteristics of the 74HC/HCT series integrated circuits, including AC characteristics, power consumption, supply voltage, input/output protection, input circuits, output circuits and static noise immunity.
The 74HC/HCT/HCU family is a range of high‑speed CMOS integrated circuits offering a wide operating voltage range, low power consumption, high input noise immunity and temperature tolerance. The guide details construction, AC characteristics, power dissipation, supply voltage requirements, input/output protection, and noise immunity for both HC and HCT variants.
Key sections cover static and dynamic power dissipation, output drive capabilities, propagation delays, bus system compatibility, package pin capacitance, and latch‑up immunity. The document also includes tables comparing HCMOS performance with LSTTL, recommended drop‑in replacements, and design‑aid notes for oscillator and bus applications.