A radiation hardened CMOS programmable interval timer, the Intersil HS-82C54RH is a high-performance, radiation hardened CMOS version of the industry standard 8254 and is manufactured using a hardened field, self-aligned silicon gate CMOS process. It has three independently programmable and functional 16-bit counters, each capable of handling clock input frequencies of up to 5MHz. Six programmable timer modes allow the HS-82C54RH to be used as an event counter, elapsed time indicator, a programmable one-shot, or for any other timing application. The high performance, radiation hardness, and industry-standard configuration of the HS-82C54RH make it compatible with the HS-80C86RH radiation hardened microprocessor. Static CMOS circuit design ensures low operating power. The Intersil hardened field CMOS process results in performance equal to or greater than existing radiation resistant products at a fraction of the power. Specifications for rad hard QML devices are controlled by the Defense Supply Center in Columbus (DSCC). The SMD numbers listed here must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-95713.


  • Electrically screened to SMD # 5962-95713
  • QML qualified per MIL-PRF-38535 requirements
  • Radiation performance
  • Total dose 100krad(Si) (Max)
  • Transient upset >108 rad(Si)/s
  • Latch-up free EPI-CMOS
  • Low power consumption
  • IDDSB 20µA
  • IDDOP 12mA
  • Pin compatible with NMOS 8254 and the Intersil 82C54
  • High-speed, "No Wait State" operation with 5MHz HS-80C86RH
  • Three independent 16-bit counters
  • Six programmable counter modes
  • Binary or BCD counting
  • Status read back command
  • Hardened field, self-aligned, junction isolated CMOS process
  • Single 5V supply
  • Military temperature range -55 °C to 125 °C

Product Options

Part Number Part Status Pkg. Type Carrier Type DLA SMD Buy Sample
Active SBDIP Tube
Active SBDIP Tube 5962R9571301QJC
Active SBDIP Tube 5962R9571301VJC
Active CFP Tray
Active CFP Tray 5962R9571301QXC
Active CFP Tray 5962R9571301VXC


Title language Type Format File Size Date
Datasheets & Errata
HS-82C54RH Datasheet Datasheet PDF 939 KB
Application Notes & White Papers
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
Wafer by Wafer Low Dose Rate Acceptance White Paper White Paper PDF 533 KB
Intersil Space Products Brochure Brochure PDF 3.14 MB
Intersil Commercial Lab Services Brochure PDF 364 KB
Standard Microcircuit Drawing 5962-95713 (HS-82C54RH) Other 0 KB
PIN19011 - Price Increase for the Listed Renesas Electronics America (REA) Radiation Hardened Space Products Price Increase Notice PDF 360 KB
PA11003 - Packing Method Change for Intersil TO-xx Metal Can and Flat Pack Packaged Products Product Advisory PDF 499 KB

News & Additional Resources

Type Date Sort ascending
Low Dose Rate Acceptance Testing Page Mar 25, 2020
Standard Data Package Page Mar 19, 2020
Rad Hard SMD Test Flow Page Mar 19, 2020
Rad Hard Test Reports Page Mar 19, 2020