MCP98244T-BE/MNY

Thermal Management Overview

The MCP98244T-BE/MNY is a digital temperature sensor with integrated 4 Kbit Serial EEPROM for SPD, manufactured by Microchip Technology. It operates within a voltage range of 1.7V to 3.6V and features a 1MHz I²C interface. The device meets JEDEC JC42.4-TSE2004B1 specifications. Temperature accuracy is ±0.2°C/±1°C (typ./max.) from +75°C to +95°C, ±0.5°C/±2°C from +40°C to +125°C, and ±1°C/±3°C from -40°C to +125°C. It is housed in an 8-pin TDFN package.

Thermal Management Feature Summary

• Integrated 4 Kbit EEPROM organized into two banks of 256 x 8-bit for storing memory module details and vendor information.
• User-programmable registers allow configuration of Shutdown or Low-Power modes and specification of temperature Event boundaries.
• Open-drain Event output pin provides configurable active-low or active-high signals for thermostat operation or microprocessor interrupts.
• Complies with JEDEC Specification JC42.4-TSE2004B1 for Memory Module Thermal Sensor Components.

Thermal Management Applications

• DIMM Modules for Servers, PCs, and Laptops
• Temperature Sensing for Solid State Drive (SSD)
• General Purpose Temperature Datalogging

Thermal Management Procurement Notes

Verify the exact part number against official Microchip documentation to ensure compatibility with your system requirements. Confirm that the ordering suffix matches the specific package and tape-and-reel specifications required for your manufacturing process. Cross-reference the datasheet revision to ensure all electrical characteristics align with your design constraints before finalizing procurement.

Thermal Management Selection Notes

Select this component when JEDEC compliance and high-accuracy thermal monitoring are required for memory modules. Consider the 1.7V to 3.6V operating voltage range and the availability of user-programmable event boundaries for custom thermal management strategies. Evaluate the integration of the 4 Kbit EEPROM if SPD data storage is necessary within the same footprint.

Thermal Management Part Context

This component belongs to the MCP9824x family of digital temperature sensors designed specifically for DIMM applications. It combines precise thermal sensing capabilities with non-volatile memory storage, addressing the dual needs of thermal regulation and serial presence detect data management in modern computing hardware environments.

Thermal Management Replacement Considerations

Consult Microchip's official documentation for verified substitute part numbers. Ensure any replacement maintains compatibility with the 1MHz I²C interface and JEDEC JC42.4-TSE2004B1 specifications. Verify that the alternative device supports the required temperature accuracy and EEPROM capacity for your specific application.

Thermal Management FAQ

What is the function of the A0 pin?

The A0 pin serves as a multi-function input. It acts as a client address bit and accepts a high voltage input (VHV) to enable the EEPROM Software Write Protect feature.

How does the device handle temperature alerts?

The MCP98244 outputs a signal on the Event pin when the ambient temperature exceeds user-programmed upper or lower boundary limits. This open-drain output can be configured as an active-low or active-high comparator output.