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Home » NEWEST Products » New by Manufacturer » Abracon » AB08XX / AB18XX Real Time Clock Family - ABRACON
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ABRACON AB08XX/AB18XX Real Time Clock Family

ABRACON AB08XX/AB18XX Real Time Clock Family

Abracon's AB08XX/AB18XX Real Time Clock Family provides a ground breaking combination of ultra-low power coupled with a highly sophisticated feature set. With power requirements significantly lower than any other industry RTC (as low as 15nA), these are the first semiconductor products based on Abracon Corporation's innovative SPOT (Subthreshold Power Optimized Technology by Ambiq Micro) CMOS platform. The AB08XX/AB18XX includes on-chip oscillators to provide minimum power consumption, full RTC functions including battery backup and programmable counters and alarms for timer and watchdog functions, and either an I2C or SPI serial interface for communication with a host controller.

Part NumberData SheetRTC Bus InterfaceDescription

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  • Sub-threshold Power Optimized Technology by Ambiq Micro
  • Ultra-low supply current:
      • <15 nA with RC oscillator
      • <20 nA with RC oscillator and autocalibration
      • <55 nA with crystal oscillator
  • Baseline timekeeping features:
      • 32 KHz crystal oscillator with integrated load capacitor/resistor
      • Counters for hundredths, seconds, minutes, hours, date, month, year, century, and weekday
      • Alarm capability on all counters
      • Programmable output clock generation (32 kHz to 1/year)
      • Countdown timer with repeat function
      • Automatic leap year calculation
  • Advanced timekeeping features:
      • Integrated power optimized RC oscillator
      • Advanced crystal calibration to ± 2 ppm
      • Advanced RC calibration to ± 16 ppm
      • Automatic calibration of RC oscillator to crystal oscillator
      • Watchdog timer with hardware reset
      • Up to 256 bytes of general purpose RAM

  • Power management features:
      • Automatic switchover to VBAT
      • External interrupt monitor
      • Programmable brown out detection
      • Programmable analog voltage comparator
  • I2C (up to 400 kHz) or SPI (up to 2 MHz) serial interface
  • Supports 3-wire and 4-wire SPI
  • Operating Voltage: 1.7-3.6 V
  • Clock and RAM retention voltage 1.5-3.6 V
  • Operating temperature -40 to 85 °C
  • All inputs are Schmitt trigger
  • 3 mm x 3 mm QFN-16 package

  • Smart cards
  • Wireless sensors and tags
  • Medical electronics
  • Utility meters
  • Data loggers
  • Appliances
  • Handsets
  • Consumer electronics
  • Communications devices
AB08XX Functional Description
AB08XX Functional DescriptionAB18XX Functional Description AB18XX Functional Description

  • Abracon
  • Semiconductors|Integrated Circuits|IC-Clock & Timer