STTS3000B2DN3F

Overview

The STTS3000B2DN3F is a digital temperature sensor designed for DIMM modules in mobile computing platforms, servers, and industrial applications. It complies with the JEDEC TS3000 specification and operates on a single supply voltage of 2.3 V to 3.6 V. The device features a programmable 9-12 bit ADC with a default resolution of 0.25 °C/LSB (10-bit). Maximum accuracy is ±3 °C over the full range of –40 °C to +125 °C, ±2 °C from +40 °C to +125 °C, and ±1 °C from +75 °C to +95 °C. It utilizes a two-wire SMBus/I2C interface supporting up to 400 kHz transfer rates.

Feature Summary

• Compliant with JEDEC TS3000 specification for memory module thermal sensors
• Factory-calibrated sigma-delta ADC converts temperature directly to digital values
• Open-drain event output configurable for comparator or interrupt modes
• Supports SMBus timeout and spike suppression filters on bus inputs

Applications

• DIMM modules in mobile personal computing platforms
• Server platform dual inline memory modules
• Industrial applications requiring thermal monitoring

Procurement Notes

Verify component authenticity through authorized channels as this part may be obsolete. Confirm package integrity and pin alignment against the 8-TDFN specifications before integration. Ensure system power rails remain within the 2.3 V to 3.6 V operating limits to maintain specified accuracy and functionality.

Selection Notes

Select this component when JEDEC TS3000 compliance is required for memory modules. Consider its compact TDFN8 footprint for space-constrained designs. Evaluate the programmable alarm thresholds and hysteresis settings against specific thermal management requirements for the target application environment.

Part Context

This sensor belongs to the STTS3000 family, which includes variants like the STTS424 for backward compatibility. The B2 suffix indicates a maximum accuracy grade of ±1 °C between +75 °C and +95 °C. The DN package denotes the 2 mm x 3 mm TDFN form factor compliant with JEDEC MO-229 WCED-3 standards.

Replacement Considerations

The STTS424 is noted as backward compatible. Verify register mapping and electrical characteristics before substitution. No other direct substitutes are confirmed in the provided documentation.

FAQ

What is the default resolution of the internal ADC?

The default resolution is 0.25 °C/LSB, corresponding to a 10-bit setting.

How is the EVENT pin configured?

The EVENT pin is an open-drain output that can be set to operate in either comparator mode for thermostat operation or interrupt mode.