The Intersil HS-82C85RH is a high performance, radiation hardened CMOS Clock Controller/Generator designed to support systems utilizing radiation hardened static CMOS microprocessors such as the HS-80C86RH. The HS-82C85RH contains a crystal controlled oscillator, reset pulse conditioning, halt/restart logic, and divide-by-256 circuitry. These features provide the means to stop the system clock, stop the clock oscillator, or run the system at a low frequency (CLK/256), enhancing control of static system power dissipation and allowing system shut-down during periods of external stress.

FEATUREs
• Electrically Screened to SMD # 5962-95820
• 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
• Very Low Power Consumption
• Pin Compatible with NMOS 8285 and Intersil 82C85
• Generates System Clocks for Microprocessors and Peripherals
• Complete Control Over System Clock Operation for Very Low System Power
    - Stop-Oscillator
    - Stop-Clock
    - Low Frequency (Slo) Mode
    - Full Speed Operation
• DC to 15MHz Operation (DC to 5MHz System Clock)
• Generates Both 50% and 33% Duty Cycle Clocks (Synchronized)
• Uses Either Parallel Mode Crystal Circuit or External Frequency Source
• Hardened Field, Self-Aligned, Junction Isolated CMOS Process
• Single 5V Supply
• Military Temperature Range . . . . . . . . . . .-55°C to +125°C