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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