Ambiq Artasie AM1805 Evaluation Board
Ambiq Artasie AM1805 Evaluation Board offers an easy method to measure and evaluate the AM18x5 real-time clocks. The AM08x5 provides significantly low power requirements (as low as 14nA) and is based on Ambiq's innovative SPOT (Subthreshold Power Optimized Technology) CMOS platform.
The Ambiq Artasie AM1805 Evaluation Board 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 a PC serial interface for communication with a host controller. An integrated power switch and a sophisticated system sleep manager with counter, timer, alarm, and interrupt capabilities allows the AM1805 to be used as a supervisory component in a host microcontroller based system.
Features
- Ultra-low supply current
- 14nA with RC oscillator
- 22nA with RC oscillator and Autocalibration
- 55nA with crystal oscillator
- Baseline timekeeping
- 32.768kHz 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 (32.768kHz to 1 year)
- Countdown timer with repeat function
- Automatic leap year calculation
- Advanced timekeeping
- Integrated power-optimized RC oscillator
- Advanced crystal calibration to ±2ppm
- Advanced RC calibration to ±16ppm
- Automatic calibration of RC oscillator to crystal oscillator
- Watchdog timer with hardware reset
- 256 bytes of general-purpose RAM
- Power management
- Integrated IQ 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 supercapacitor
- Wide operating range
- 1.5V to 3.6V operating voltage
- 1.5V to 3.6V clock and RAM retention voltage
- Operating temperature of -40℃ to +85℃
- All inputs include Schmitt triggers
Applications
- Smart cards
- Wireless sensors and tags
- Medical electronics
- Utility meters
- Data loggers
- Appliances
- Handsets
- Consumer electronics
- Communications equipment
Associated Products
Ambiq AM18x5 Real-Time Clocks
Combines ultra-low power with a highly sophisticated feature set.
發佈日期: 2023-10-09
| 更新日期: 2023-11-29