STCN75 is a digital temperature sensor and thermal watchdog from ST. It has a wide measurement temperature range, high accuracy, low power consumption, and flexible interface.
The STCN75 is a high-precision digital CMOS temperature sensor IC with a sigma-delta temperature-to-digital converter and an I2C-compatible serial digital interface. It is targeted for general applications such as personal computers, system thermal management, electronics equipment, and industrial controllers, and is packaged in the industry-standard 8-lead TSSOP package. The device contains a bandgap temperature sensor and 9-bit ADC which monitor and digitize the temperature to a resolution up to 0.5 °C.
| Operating temperature range | -55 °C to +125 °C |
|---|---|
| Accuracy (typical) | ±0.5 °C |
| Accuracy (maximum) | ±2 °C |
| Operating voltage range | 2.7 V to 5.5 V |
| Supply current (typical) | 125 µA |
| Conversion time | 45 ms |
| Interface type | 2-wire I2C/SMBus-compatible |
| Package type | MSOP8 (TSSOP8) |
No, the STCN75 is factory-calibrated and requires no external components to measure temperature.
Up to eight devices can be connected on the bus using selectable address pins.
Yes, it is pin- and software-compatible with the TCN75 and serves as a drop-in replacement.