STTS424E02BDN3F

Overview

The STTS424E02BDN3F is a memory module temperature sensor compliant with JEDEC JC42.4 standards, manufactured by STMicroelectronics. It provides high-resolution temperature sensing with a typical resolution of 0.25°C per LSB and accuracy within ±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. The device operates on a supply voltage ranging from 2.7V to 3.6V with a maximum operating supply current of 200µA. It features an ADC conversion time of 125ms (max) and supports selectable hysteresis set points of 0, 1.5, 3, or 6.0°C. The ambient temperature sensing range extends from -40°C to +125°C.

Feature Summary

• Compliant with JEDEC JC42.4 standard for memory module temperature monitoring
• Two-wire SMBus/I²C-compatible serial interface supporting up to 100kHz transfer rate
• Selectable hysteresis set points for configurable thermal protection thresholds

Applications

• Memory module temperature sensing in server and storage systems
• JEDEC-compliant thermal monitoring for DRAM modules
• High-accuracy ambient temperature sensing in electronic equipment

Procurement Notes

Verify the specific suffix 'E02BDN3F' against official STMicroelectronics documentation to confirm package type, tape-and-reel specifications, and environmental compliance status such as RoHS. Ensure the ordering code matches the required DFN8 or TSSOP8 package variant and that the component meets the intended industrial or commercial temperature grade requirements for your design.

Selection Notes

Select this component when JEDEC JC42.4 compliance is mandatory for memory subsystems. Consider its ±1°C accuracy in the critical +75°C to +95°C range for precise thermal management. Evaluate the 200µA max supply current for low-power applications and verify that the 2.7V to 3.6V supply voltage aligns with the system's power rails. Confirm interface compatibility with the host controller's I²C/SMBus capabilities.

Part Context

The STTS424 series belongs to STMicroelectronics' portfolio of dedicated temperature sensors designed for digital thermal management. This specific model targets the memory module market, addressing the need for standardized, accurate, and fast-response temperature monitoring in high-density computing environments where thermal stability directly impacts data integrity and hardware longevity.

FAQ

What is the typical resolution of the STTS424E02BDN3F?

The typical resolution is 0.25°C per LSB.

Does the STTS424E02BDN3F support adjustable hysteresis?

Yes, it supports selectable hysteresis set points of 0, 1.5, 3, or 6.0°C.