HS-82C55ARH September 1995 Radiation Hardened CMO.
HS1-82C55ARH - Radiation Hardened CMOS Programmable Peripheral Interface
HS1-82C55ARH-8 - Radiation Hardened CMOS Programmable Peripheral Interface
HS1-82C55ARH-Q - Radiation Hardened CMOS Programmable Peripheral Interface
