Advanced Timekeeping |
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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 |
256 bytes of general purpose RAM |
Power Management |
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Integrated ~1Ω power switch for off-chip components such as a host MCU |
System sleep manager for managing host processor wake/sleep states |
External reset signal monitor |
Reset output generator |
Supercapacitor trickle charger with programmable charging current |
Automatic switchover to Voltage of the Battery (VBAT) |
External interrupt monitor |
Programmable low battery detection threshold |
Programmable analog voltage comparator |
Ultra-Low Power Flexible Serial Peripherals |
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3-wire or 4-wire SPI (up to 2 MHz) serial interface |
Wide Operating Range |
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Operating Voltage: 1.5-3.6 V |
Clock and RAM Retention Voltage: 1.5-3.6 V |
Operating Temperature: -40°C to 85°C |
All inputs include Schmitt Triggers |
Applications |
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Smart Cards |
Wireless Sensors and Tags |
Medical Electronics |
Utility Meters |
Data Loggers |
Appliances |
Handsets |
Consumer Electronics |
Consumer Equipment |
Package Option |
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3 mm x 3 mm 16-pin QFN package (also available in wafer form) |
Ordering Information |
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AM1815AQ |
AM1815SPIEVB (EVB) |