AB Series Real-Time-Clocks


Abracon Corporation introduces its ultra-low power, real-time-clock integrated circuits in 3 x 3 mm QFN package

Abracon Corporation introduces its ultra-low power, real-time-clock integrated circuits in 3 x 3 mm QFN package. The AB08XX and AB18XX series of RTC ICs are targeted for ultra-low power, timekeeping applications where power consumption is of critical importance. Customers who seek sub 60 nA total power consumption with complete RTC functionality will find this family of great value.

Both AB08XX and AB18XX devices are offered with either SPI or I²C interface with up to 256 bytes of on-board RAM. Furthermore, the AB18XX devices are offered with an on-board power switch to control the power port of system processor/µcontroller; thereby, eliminating leakage currents.

Since RTC ICs have broad applications, these low cost, ultra-low power solutions are ideal for all power sensitive designs such as: coin-cell and other battery powered hand-held solutions, smart grid meters, smart cards, wireless sensors and tags, medical electronics, patient monitoring, utility meters, data loggers, appliances, handsets and other general purpose consumer electronics.


Features
  • An ultra-low supply current:
    • Less than 15 nA with RC oscillator
    • Less than 20 nA with RC oscillator and auto calibration
    • Less than 55 nA with crystal oscillator
  • Operating voltage: +1.70 V to +3.60 V
  • An industry standard: 3 x 3 mm QFN package
  • I²C (400 kHz) or SPI (2 MHz) communication
  • Counters for hundreds, seconds, minutes, hours, date, weekday, month, year and century
  • Alarm capability on all counters
  • A watchdog timer with hardware reset
  • Up to 256 bytes of general purpose RAM
  • Power management: integrated less than 1 Ω power switch for off-chip components, such as the host MCU

AB Series Real-Time-Clocks

Manufacturer Part Number Description Available Quantity Datasheets
AB-RTCMK-32.768KHZ-T3 IC RTC CLK/CALENDAR I2C 8-SMT 4174
AB0805-T3 IC RTC CLK/CALENDAR I2C 16-QFN 17987
AB0815-T3 IC RTC CLK/CALENDAR SPI 16-QFN 20606
AB1805-T3 IC RTC CLK/CALENDAR I2C 16-QFN 17942
AB1815-T3 IC RTC CLK/CALENDAR SPI 16-QFN 17987
AB-RTCMC-32.768KHZ-AIGZ-S7-T IC RTC CLK/CALENDAR I2C 8-CLCC 1909
AB-RTCMC-32.768KHZ-B5GA-S3-T IC RTC CLK/CALENDAR I2C 10-VDFN 895
AB-RTCMC-32.768KHZ-B5ZE-S3-T IC RTC CLK/CALENDAR I2C 10-VDFN 1929
AB-RTCMC-32.768KHZ-EOA9-S3-D-B-T IC RTC CLK/CALENDAR SPI 10-VDFN 4029
AB-RTCMC-32.768KHZ-EOZ9-S3-D-B-T IC RTC CLK/CALENDAR I2C 10-VDFN 3426
AB-RTCMC-32.768KHZ-ZIZE-S2-T IC RTC CLK/CALENDAR SPI 10-TDFN 2337