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