STTS751 Digital Temperature Sensor

STMicroelectronics STTS751 Digital Temperature Sensor communicates over a 2-wire SMBus 2.0 compatible bus. The temperature is measured with a user-configurable resolution between 9 and 12 bits. At 9 bits, the smallest step size is 0.5°C, and at 12 bits, it is 0.0625°C. At the default resolution (10 bits, 0.25°C/LSB), the conversion time is nominally 21 milliseconds. The open-drain EVENT output indicates an alarm condition in which the measured temperature has exceeded the user-programmed high limit or fallen below the low limit. When the EVENT pin is asserted, the host can respond using the SMBus Alert Response Address (ARA) protocol, to which the STTS751 will respond by sending its slave address.