MCP98242T-CE/MUY

Thermal Management Overview

The MCP98242T-CE/MUY is a digital temperature sensor and serial EEPROM integrated circuit manufactured by Microchip Technology. It operates within a voltage range of 3.0V to 3.6V and features an internal temperature sensor with accuracy of ±0.5°C (typical) from +75°C to +95°C, and ±1°C (typical) from +40°C to +125°C. The device includes a 256-byte Serial Presence Detect (SPD) EEPROM. It utilizes a 2-wire I²C/SMBus compatible interface for communication.

Thermal Management Feature Summary

• Integrates a high-accuracy digital temperature sensor with user-programmable registers for boundary trip limits and event output configuration.
• Includes a 256-byte Serial EEPROM specifically designed for DRAM DIMM Serial Presence Detect (SPD) applications with write-protection capabilities.
• Features a low-power shutdown mode with maximum standby current of 3 µA and supports standard I²C/SMBus protocols.

Thermal Management Applications

• DIMM Modules
• Laptops, Personal Computers and Servers
• Hard Disk Drives and Other PC Peripherals

Thermal Management Procurement Notes

Verify the specific package suffix MUY corresponds to the required 8-UDFN(2x3) form factor. Confirm that the operating voltage requirements align with the specified 3.0V to 3.6V range. Ensure compatibility with the host controller's I²C/SMBus interface timing specifications before integration into the design.

Thermal Management Selection Notes

Select this component for applications requiring JEDEC JC42.4 compliance for mobile platform memory modules. Consider the device when precise thermal monitoring combined with SPD data storage is necessary in a compact surface-mount package. Evaluate the shutdown current consumption if power efficiency is a critical design constraint.

Thermal Management Part Context

The MCP98242 belongs to Microchip's family of digital temperature sensors optimized for memory module thermal management. It combines sensing capabilities with non-volatile storage in a single package, facilitating standardized implementation in computer hardware systems where space and pin count are limited.

Thermal Management Replacement Considerations

MCP98242T-CE/MNY

Thermal Management FAQ

What is the function of the Event output pin?

The Event pin is an open-drain output that signals when the ambient temperature exceeds user-programmed upper or lower boundary limits. It can be configured as a comparator output or an interrupt output.

How is the EEPROM write protection managed?

The lower 128 bytes can be permanently write-protected (PWP) or software reversible write-protected (SWP). The upper 128 bytes remain unwrite-protected for general-purpose data storage.