DS1302 Real Time Clock Module with CR2032 Battery (2 pack)

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$8.95 ea

Call 1-800-831-4242

  • Jameco Part no.: 2255138
  • Manufacturer: Velleman
  • Manufacturer no.: VMA301
  • NCNR (Non-Cancelable, Non Returnable)
  • HTS code: 8542390000
  • Electronics Parts Locator
# of units Price
10+ $8.95

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DS1302 Real Time Clock Module with CR2032 Battery (2 pack)

The DS1302 trickle-charge timekeeping chip contains a real-time clock/calendar and 31 bytes of static RAM. It communicates with a microprocessor via a simple serial interface. The real-time clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator.


  • Manages all timekeeping functions: real-time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year
  • 31 x 8 battery-backed general-purpose RAM
  • Simple Serial Port Interfaces to most Microcontrollers: Simple 3-Wire Interface
  • TTL compatible: VCC = 5V
  • Single-byte or multiple-byte (burst mode) data transfer for read or write of clock or RAM data
  • Low power operation extends battery backup run time: 2.0 V to 5.5 V full operation
  • Uses less than 300 nA at 2.0 V
  • Temperature range: 32°F to +158°F (0°C to +70°C)
  • Includes CR2032 battery
  • Sold as a pack of 2.

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