STCN75

STCN75 Digital temperature sensor and thermal watchdog Features ■ Measures temperatures from –55 °C to +125 °C (–67 °F to +257 °F) – ±0.5 °C (typ) accuracy – ±2 °C (max) accuracy from –25 °C to +100 °C ■ Low operating current:125 µA (typ) ■ No external components required ■ 2-wire I2C/SMBus-compatible serial interface – Selectable bus address allows connection of up to eight devices on the bus ■ Wide power supply range - operating voltage range: 2.7 V to 5.5 V ■ Conversion time is 45 ms (typ) ■ Programmable temperature threshold and hysteresis set points ■ Pin- and software-compatible with TCN75 (drop-in replacement) ■ Power-up defaults permit standalone operation as a thermostat ■ Shutdown mode to minimize power consumption ■ Output pin (open drain) can be configured for interrupt or comparator/thermostat mode (dual purpose event pin) ■ MSOP8 (TSSOP8) package Datasheet − production data MSOP8 (TSSOP8) March 2012 This is information on a product in full production. Doc ID 13307 Rev 9 1/36 www.st.com 1 Contents Contents STCN75 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 Serial communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.2 Temperature sensor output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.3 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.3...