The Intersil HCS163MS is a radiation hardened synchronous presettable binary counter that features lookahead carry logic for use in high-speed counting applications. Counting and parallel load, and presetting are all accomplished synchronously with the positive transition of the clock. The HCS163MS utilizes advanced CMOS/SOS technology to achieve high-speed operation. This device is a member of the radiation hardened, high-speed, CMOS/SOS logic family. The HCS163MS is supplied in a 16-lead Ceramic Flatpack (K suffix) or an SBDIP package (D suffix).


  • 3 micron radiation hardened CMOS SOS
  • Total dose 200K RAD (Si)
  • SEP effective LET no upsets: >100 MEV-cm2/mg
  • Single Event Upset (SEU) immunity < 2 x 10-9 errors/bit-day (Typ)
  • Dose rate survivability: >1 x 1012 RAD (Si)/s
  • Dose rate upset: >1010 RAD (Si)/s 20ns pulse
  • Latch-up free under any conditions
  • Military temperature range: -55 °C to +125 °C
  • Significant power reduction compared to LSTTL ICs
  • DC operating voltage range: 4.5V to 5.5V
  • Input Logic Levels
    • VIL = 30% of VCC
    • VIH = 70% of VCC
  • Input current levels Ii ≤ 5µA at VOL, VOH


Document title Document type
Date Date
PDF 402 KB Datasheet
PDF 338 KB Application Note
PDF 467 KB Brochure
PDF 4.85 MB Brochure
PDF 360 KB Price Increase Notice
PDF 499 KB Product Advisory
PDF 230 KB Product Change Notice
PDF 533 KB White Paper
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Design & Development