The Intersil HS-82C55ARH is a high performance, radiation hardened CMOS version of the industry standard 8255A and is manufactured using a hardened field, self-aligned silicon gate CMOS process. It is a general purpose programmable I/O device which may be used with many different microprocessors.

Features
• Electrically Screened to SMD # 5962-95819
• QML Qualified per MIL-PRF-38535 Requirements
• Radiation Hardened
    - Total Dose. . . . . . . . . . . . . . . . . . . . . 100 krad(Si) (Max)
    - Transient Upset. . . . . . . . . . . . . . . . . . . . <108 rad(Si)/s
    - Latch Up Free EPI-CMOS
• Low Power Consumption
    - IDDSB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20µA
• Pin Compatible with NMOS 8255A and the Intersil 82C55A
• High Speed, No “Wait State” Operation with 5MHz HS-80C86RH
• 24 Programmable I/O Pins
• Bus-Hold Circuitry on All I/O Ports Eliminates Pull-Up Resistors
• Direct Bit Set/Reset Capability
• Enhanced Control Word Read Capability
• Hardened Field, Self-Aligned, Junction Isolated CMOS Process
• Single 5V Supply
• 2.0mA Drive Capability on All I/O Port Outputs
• Military Temperature Range . . . . . . . . . . . -55°C to 125°C