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HM-4201-RTCM1 - High Temperature Electronics
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+180°C High Temp Real Time Clock/Calendar Module with Built–In 32.768KHz Crystal Oscillator. Timing, Calendar and Alarm functions can be set via I2C BUS. The entire HT RTC Module is fully operational from 2.7V to 3.6V. The Timing/Calendar function is operational down to 1.8V range

Photo of 3 different high temperature clock oscillators
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Features:
  • Continuous operating temperature range –20°C to 180°C
  • 2.7Vdc to 3.6Vdc operation
  • Built–In tight stability 32.768kHz crystal oscillator
  • Low current consumption
  • Designed for high shock & vibration
  • 0.5" x 0.5" x 0.2" 8 pin ½DIP

Applications:
  • Oil / Gas downhole tool
  • Geophysical services
  • High temperature industrial process control
  • Extended temperature Military/Aerospace
  • Avionics
  • Engine control