STTS2002B2DN3F

Overview

The STTS2002B2DN3F is a memory module temperature sensor with an integrated 2 Kb SPD EEPROM, compliant with JEDEC TSE2002a2. It operates on a single supply voltage of 2.3 V to 3.6 V within an operating temperature range of –40 °C to +125 °C. The device features a programmable 9-12 bit ADC with a default resolution of 0.25 °C/LSB (10-bit). Typical accuracy is ±1 °C from +75 °C to +95 °C and ±2 °C from +40 °C to +125 °C. It utilizes a two-wire SMBus/I2C interface supporting up to 400 kHz transfer rates.

Feature Summary

• Integrates a digital thermal sensor and a 2 Kb serial presence detect EEPROM in a compact package
• Provides software data protection for the lower 128 bytes of the memory array
• Supports selectable temperature hysteresis set points for alarm window configuration
• Includes an open-drain event output pin for interrupt or comparator mode operation

Applications

• DDR memory modules in mobile personal computing platforms
• Server DIMM applications
• Industrial memory module systems

Procurement Notes

Verify that the specific ordering suffix matches the required package variant and tape/reel specifications. Confirm compatibility with existing system bus protocols before integration. Ensure the component meets current environmental compliance standards relevant to the target deployment region.

Selection Notes

Select this component when space constraints require combining thermal monitoring with SPD storage. Verify that the host controller supports the required SMBus/I2C addressing scheme. Consider the power consumption profile if battery life is critical for the portable application.

Part Context

This part belongs to the STTS series of memory module sensors designed by STMicroelectronics. It serves as a forward-compatible solution for JEDEC-compliant DRAM DIMMs, replacing discrete sensor and EEPROM components to reduce board space and manufacturing costs.

Replacement Considerations

Check for backward compatibility with legacy designs using the STTS424E02. Evaluate alternative parts within the STTS family that offer similar EEPROM capacities and package dimensions.