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Home » NEWEST Products » New by Manufacturer » ABRACON Corporation » ABRACON AB08XX / AB18XX Real Time Clock Family
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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.

Features
  • 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

Applications
  • Smart cards
  • Wireless sensors and tags
  • Medical electronics
  • Utility meters
  • Data loggers
  • Appliances
  • Handsets
  • Consumer electronics
  • Communications devices


Part Number


Interface
Baseline Timekeeping Advanced Timekeeping Power Management

Datasheet
XT No. Of GP
Outputs
RC
Osc
Calib/
Auto-calib
Watch-
dog
RAM
(B)
VBAT
Switch
Reset
Mgmt
Ext
Int
Power Sw
 & Sleep FSM
Osc
AB0801-T3 I2C Yes 2 Yes Yes No 0 No No No No
AB0803-T3 I2C Yes 2 Yes Yes No 64 Yes No No No
AB0804-T3 I2C Yes 4 Yes Yes Yes 256 No No Yes No
AB0805-T3 I2C Yes 4 Yes Yes Yes 256 Yes No Yes No
AB0811-T3 SPI Yes 2 Yes Yes No 0 No No No No
AB0813-T3 SPI Yes 2 Yes Yes No 64 Yes No No No
AB0814-T3 SPI Yes 3 Yes Yes Yes 256 No No Yes No
AB0815-T3 SPI Yes 3 Yes Yes Yes 256 Yes No Yes No
AB1801-T3 I2C Yes 2 Yes Yes No 0 No No No Yes
AB1803-T3 I2C Yes 2 Yes Yes No 64 Yes No No Yes
AB1804-T3 I2C Yes 4 Yes Yes Yes 256 No Yes Yes Yes
AB1805-T3 I2C Yes 4 Yes Yes Yes 256 Yes Yes Yes Yes
AB1811-T3 SPI Yes 2 Yes Yes No 0 No No No Yes
AB1813-T3 SPI Yes 2 Yes Yes No 64 Yes No No Yes
AB1814-T3 SPI Yes 3 Yes Yes Yes 256 No Yes Yes Yes
AB1815-T3 SPI Yes 3 Yes Yes Yes 256 Yes Yes Yes Yes
AB08XX Functional Description
AB08XX Functional Description
AB18XX Functional Description AB18XX Functional Description
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  • Semiconductors|Integrated Circuits|IC-Clock & Timer