MCP98243T-BE/ST

Thermal Management Overview

The MCP98243T-BE/ST is a digital temperature sensor with an integrated 2 Kbit Serial EEPROM for SPD, meeting JEDEC JC42.4-TSE2002B3 specifications. It operates within a -40°C to +125°C range and provides Grade B accuracy of ±0.2°C typical (±1°C maximum) from +75°C to +95°C. The device features a 2-wire I²C/SMBus interface, supports up to 400 kHz bus frequency, and includes user-programmable registers for shutdown modes and event boundaries.

Thermal Management Feature Summary

• Integrates a 2 Kbit Serial EEPROM specifically designed for DRAM DIMM Serial Presence Detect applications
• Features a 2-wire I²C compatible serial interface supporting up to 400 kHz bus frequency
• Provides user-selectable temperature Event output polarity for thermostat or interrupt operations
• Includes permanent and reversible software write protection capabilities for the lower 1 Kbit of memory

Thermal Management Applications

• DIMM Modules for Servers, PCs, and Laptops
• General Purpose Temperature Datalogging
• Memory Module Thermal Sensor Component

Thermal Management Procurement Notes

Verify that the ordering suffix 'T' confirms tape-and-reel packaging and '/ST' indicates the TSSOP-8 package. Confirm the 'BE' suffix corresponds to the specified Grade B accuracy parameters. Ensure the component meets the required JEDEC specification version for your specific application context.

Thermal Management Selection Notes

Select this component when JEDEC-compliant thermal sensing with embedded SPD storage is required. The MCP98243 offers higher I²C speed compared to the MCP98242 and supports event outputs during shutdown mode. Verify voltage requirements as the sensor specifies 3.0V to 3.6V while the EEPROM supports 1.8V to 5.5V.

Thermal Management Part Context

This part belongs to the MCP9843/98243 family of digital temperature sensors. It shares the same core sensing technology and accuracy profile as the MCP9843 but adds the integrated EEPROM functionality. The TSSOP-8 package variant provides surface-mount compatibility for standard PCB layouts.

Thermal Management Replacement Considerations

The MCP98242 is a comparable part without the EEPROM. Differences include I²C maximum frequency (100 kHz vs 400 kHz), I/O voltage levels, and behavior of the Event output during shutdown mode.