Artasie Real-Time Clock – AM1815 RTC
Industry Leading RTC
The Ambiq® Artasie Real-Time Clock AM1815 with Power Management provides a groundbreaking combination of ultra-low power coupled with a highly sophisticated feature set. Based on Ambiq’s innovative Subthreshold Power Optimized Technology (SPOT®) CMOS platform, with power requirements as low as 14 nA.
Block Diagram Artasie1815
Pin Configuration Diagram Artasie1815
Specifications
Ultra-Low Supply Current
- 14 nA with RC oscillator
- 22 nA with RC oscillator and Autocalibration
- 55 nA with crystal oscillator
Baseline Timekeeping
- 3x GPIO Outputs
- 32.768 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 (32.768 kHz to 1 year)
- Countdown timer with repeat function
- Automatic leap year calculation
Advanced Timekeeping
- 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
- 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
- 3-wire or 4-wire SPI (up to 2 MHz) serial interface
Wide Operating Range
- 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
- Smart Cards
- Wireless Sensors and Tags
- Medical Electronics
- Utility Meters
- Data Loggers
- Appliances
- Handsets
- Consumer Electronics
- Consumer Equipment
Package Options
- 3 mm x 3 mm 16-pin QFN package (also available in wafer form)
Ordering Information
- AM1815AQ
- AM1815SPIEVB (EVB)
Where to Buy
AM1815AQ
Artasie AM1815
AM1815SPIEVB
Artasie Evaluation board for AM1815