TCN75A is a digital temperature sensor from Microchip Technology Inc. with ±1°C (typ.) accuracy, it can convert temperature from -40°C to +125°C to digital data. It supports user-defined resolution, power-saving mode, single conversion, alert output and hysteresis limits.
The TCN75A is a 2‑wire serial temperature sensor from Microchip that converts temperatures from –40 °C to +125 °C into a digital word. It offers selectable resolution from 0.5 °C down to 0.0625 °C, low operating current (200 µA typical) and a shutdown current as low as 0.1 µA.
The document provides detailed electrical characteristics, pin descriptions, serial communication protocol, timing specifications and typical performance curves. Package options include MSOP‑8 and SOIC‑8, and up to eight devices can share the same 2‑wire bus.
| Operating Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Operating Current (typical) | 200 µA |
| Shutdown Current (typical) | 0.1 µA |
| Temperature Accuracy (typical) | ±1 °C |
| Resolution (selectable) | 0.5 °C to 0.0625 °C |
| Maximum Devices on Bus | 8 |
| Package Types | MSOP‑8, SOIC‑8 |
The sensor operates from 2.7 V to 5.5 V.
Up to eight TCN75A devices can be connected on the same bus.
The typical shutdown current is 0.1 µA.
Resolution can be set between 0.5 °C and 0.0625 °C.