MCP98243T-BE/MNYAA

Overview

The MCP98243T-BE/MNYAA is a digital temperature sensor with an integrated 2 Kbit Serial EEPROM for SPD. It features a Delta-Sigma ADC and I2C/SMBus interface. Accuracy is ±0.2°C/±1°C (typ/max) from +75°C to +95°C, and ±1°C/±3°C (typ/max) from -20°C to +125°C. Operating voltage ranges from 2.7V to 5.5V, with specified JEDEC range of 3.0V to 3.6V. The device operates within -40°C to +125°C ambient temperature.

Feature Summary

• Integrated 2 Kbit Serial EEPROM for DIMM vendor information storage
• Compliant with JEDEC JC42.4-TSE2002B3 specification
• User-programmable temperature event boundaries and alert output
• Permanent and reversible software write protection for lower 1 Kbit

Applications

• DIMM modules for servers, PCs, and laptops
• General purpose temperature datalogging

Procurement Notes

Verify the specific suffix 'MNYAA' against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with JEDEC standards if used in memory modules. Check for end-of-life status or alternative part numbers as availability may vary.

Selection Notes

Select this component when SPD data storage is required alongside thermal monitoring. The built-in EEPROM eliminates external memory needs. Verify that the host system supports the I2C protocol and can handle the required address configuration via A0-A2 pins.

Part Context

Part of the MCP9843/98243 family designed for memory module applications. The MCP98243 variant specifically includes the EEPROM functionality absent in the MCP9843. Designed to meet industry-standard thermal sensor requirements for DRAM DIMMs.

Replacement Considerations

MCP98242T-CE/MUY: Lacks EEPROM; different accuracy and I2C specs. MCP98243T-BE/MC: Different package (MCUFDFN). MCP98243T-BE/ST: Different package (TSSOP). Verify pinout and electrical characteristics before substitution.