Nanopower Semiconductor nPZero G1S ICs
Nanopower Semiconductor nPZero G1S ICs are Power-Saving ICs (PSICs) that enable ultra-low power autonomous operation in sensor-based systems. These ICs power down the MCU and sensors, autonomously poll up to four I2C or SPI sensors, process sensor data, and wake the MCU when required. The PZero G1S ICs reduce unnecessary MCU and peripheral activity, potentially reducing system power consumption by up to 90% in suitable duty-cycled applications. These ICs offer an idle current of just 100nA and a typical polling current of 1µA, and provide 128-byte SRAM for sensor configuration and data. The PZero G1S ICs support a supply voltage range of 1.7V to 3.6V and feature an optional external 32.768kHz crystal for higher timing accuracy. Typical applications include battery-powered IoT devices, energy-harvesting IoT devices, wireless sensor nodes, environmental monitoring, asset tracking and logging, smart buildings, and smart cities.
Features
- 100nA idle current at 3V and 22°C
- 1µA polling current at 3V and 22°C
- Can reduce system power consumption by up to 90% in suitable applications
- Autonomously manages up to four sensors
- Supports I2C and SPI sensors
- Allows the host MCU to remain powered off during sensor monitoring
- Threshold-based sensor polling and wake-up
- Integrated power switches for the MCU and four sensors
- Up to 10mA host power switch and four 1mA sensor power switches
- 128-byte SRAM for sensor configuration and data
- I2C interface for host MCU configuration and communication
- Flexible interrupt and trigger I/O
- Integrated clock and timer functions
- Optional external 32.768kHz crystal for higher timing accuracy
- 1.7V to 3.6V supply voltage range
- QFN32, 5mm x 5mm package
Applications
- Battery-powered IoT devices
- Energy-harvesting IoT devices
- Wireless sensor nodes
- Environmental monitoring
- Asset tracking and logging
- Smart buildings and smart cities
- Agriculture and remote monitoring
- Wearable and portable sensing
- Industrial sensor nodes
- Extended battery life requirement
Typical Performance in Idle Mode
Functional Block Diagram
Dimensions
