The TCN75A is a digital temperature sensor from Microchip Technology that converts temperature values to digital data with an accuracy of ±1°C (standard). It operates over a power supply voltage range of 2.7V to 5.5V and supports the I2C™ communication protocol. It has low power consumption and is suitable for a variety of applications.
The TCN75A is a 2‑wire serial temperature sensor that converts temperature from –40 °C to +125 °C into digital data with selectable resolution. It offers programmable registers for alert thresholds, hysteresis and shutdown modes, making it suitable for low‑power and multi‑zone monitoring applications.
The document provides electrical characteristics, pin descriptions, timing diagrams, serial communication protocol, and package options (SOIC‑8, MSOP). It also includes typical performance graphs, address configuration details, and code‑protection notices from Microchip Technology Inc. This manual is written in Japanese.
| Shutdown Current (IsHDN) | 0.1 µA (max) |
|---|---|
| Power‑On Reset Threshold (Vpos) | 1.7 V |
| Resolution Options | 0.5 °C, 0.25 °C, 0.125 °C, 0.0625 °C |
| Typical Supply Current | 200 µA (standard) |
The alert output polarity can be set to active‑low or active‑high via a programmable register option.
The shutdown current is specified as 0.1 µA maximum.
Pins A2, A1 and A0 are address‑select pins that define the device’s I²C address bits.