AB0815 ABRACON

AB08XX Series Real Time Clock Module th ESD Sensitive Date of Issue: Sept. 10 , 2012 3.0 x 3.0 mm Page (1) of (12) Abracon Drawing Revision : Initial Release AB08XX 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 Applications Baseline timekeeping features: Smart cards - 32 KHz crystal oscillator with integrated load Wireless sensors and tags capacitor/resistor Medical electronics - Counters for hundredths, seconds, minutes, hours, date, Utility meters month, year, century, and weekday Data loggers - Alarm capability on all counters Appliances - Programmable output clock generation (32 kHz to Handsets 1/year) Consumer electronics - Countdown timer with repeat function - Automatic leap year calculation Communications devices Description Advanced timekeeping features: - Integrated power optimized RC oscillator The Abracon Corporation AB08XX Real Time Clock family - Advanced crystal calibration to 2 ppm provides a groundbreaking combination of ultra-low power - Advanced RC calibration to 16 ppm coupled with a highly sophisticated feature set. With power - Automatic calibration of RC oscillator to crystal requirements significantly lower than any other industry RTC oscillator (as low as 15nA), these are the first semiconductor products - Watchdog timer with hardware reset based on Abracon Corporations innovative SPOT (Sub- - Up to 256 bytes of general purpose RAM threshold Power Optimized Technology by Ambiq Micro) CMOS platform. The AB08XX includes on-chip oscillators to Power management features: provide minimum power consumption, full RTC functions - Automatic switchover to VBAT including battery backup and programmable counters and 2 - External interrupt monitor alarms for timer and watchdog functions, and either an I C or - Programmable brown out detection SPI serial interface for communication with a host controller. - Programmable analog voltage comparator 2 I C (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 AB08XX Series Real Time Clock Module th ESD Sensitive Date of Issue: Sept. 10 , 2012 3.0 x 3.0 mm Page (1) of (12) Abracon Drawing Revision : Initial Release 1. Family Summary The AB08XX family consists of several members. All devices are supplied in a standard 3 mm x 3 mm QFN-16 package. Members of the software and pin compatible AB18XX RTC with Power Management family are also listed. Baseline Advanced Timekeeping Power Management Timekeeping Part Interface Number RA Power XT RC Calib/ Watch- VBAT Reset Ext of GP M Switch and Osc Osc Auto-calib dog Switch Mgmt Int Outputs (B) Sleep FSM 2 AB0801-T3 2 0 I C 2 AB0803-T3 2 64 I C 2 AB0804-T3 4 256 I C 2 AB0805-T3 4 256 I C AB0811-T3 2 0 SPI AB0813-T3 2 64 SPI AB0814-T3 3 256 SPI AB0815-T3 3 256 SPI Software and Pin Compatible AB18XX Family Components 2 AB1801-T3 2 0 I C 2 AB1803-T3 2 64 I C 2 AB1804-T3 4 256 I C 2 AB1805-T3 4 256 I C AB1811-T3 2 0 SPI AB1813-T3 2 64 SPI AB1814-T3 3 256 SPI AB1815-T3 3 256 SPI