Description The M54HCxxx and M54HCTxxx series are composed of over 90 types of high speed CMOS functions specifically designed to meet the radiation requirements of the aerospace industry. It includes a large set of gates, Flip-Flops, Multiplexers, Counters, Bus interface and several other functions. The radiation hardness, the single event latch-up (SEL) immunity and the housing in hermetic packages of all types of both series make them ideally suited for use in the most difficult environmental conditions. Features ■ 2 to 6 V operating voltage ■ Low power DC dissipation: 1 µA max at 25°C ■ High speed tPD = 8 ns typ at 25°C ■ Symmetrical outputs characteristics ■ High noise immunity: 28% of min VCC ■ Hermetic packages ■ Rad-hard 50 krad (Si) ■ SEL immune up to 110 MeV/mg/cm² ■ ESCC qualified ■ Same die and electrical specification for engineering and flight models ■ The complete specification of each type is available from the ESCC web site: https://escies.org using its ESCC part number. ST guarantees full compliance of qualified parts with these ESCC specifications
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