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