STTS424 Memory module temperature sensor is compliant with JEDEC JC42.4 Temperature sensor standard, providing 0.25 °C resolution and ±1 °C accuracy. The sensor uses a 2-wire SMBus/I2C compatible serial interface, supporting up to 400 kHz transfer rate.
The STTS424 is a memory module temperature sensor designed for DIMM modules in mobile personal computing platforms, servers, and industrial applications. It features a band gap-based temperature sensor and a 10-bit analog-to-digital converter (ADC) that monitors and digitizes temperature with a resolution of up to 0.25°C. The device is factory-calibrated and requires no external components to measure temperature.
| Temperature sensor resolution | 0.25°C (typ)/LSB |
|---|---|
| Supply voltage | 2.7 V to 3.6 V |
| Maximum operating supply current | 200 µA |
| Ambient temperature sensing range | –40°C to 125°C |
| Transfer rate | up to 400 kHz |
| Package dimensions | 2 mm x 3 mm, height 0.80 mm (max) |
| ADC conversion time | 125 ms (max) |
The accuracy is ±1°C from +75°C to +95°C, ±2°C from +40°C to +125°C, and ±3°C from –40°C to +125°C.
Yes, the temperature sensor is compliant with JEDEC JC42.4.
No, the device is factory-calibrated and requires no external components to measure temperature.