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MCP98242

Microchip Technology
Part Number MCP98242
Manufacturer Microchip Technology
Description Memory Module Temperature Sensor
Published Mar 1, 2010
Detailed Description www.DataSheet4U.com MCP98242 Memory Module Temperature Sensor w/EEPROM for SPD Features • • • • • • Temperature Sensor ...
Datasheet PDF File MCP98242 PDF File

MCP98242
MCP98242

Overview
www.
DataSheet4U.
com MCP98242 Memory Module Temperature Sensor w/EEPROM for SPD Features • • • • • • Temperature Sensor + 256 Byte Serial EEPROM EEPROM for Serial Presence Detect (SPD) Optimized for Voltage Range: 3.
0V to 3.
6V Shutdown/Standby Current: 3 µA (maximum) 2-wire Interface: I2C™/SMBus™-Compatible Available Packages: DFN-8, TDFN-8, TSSOP-8 Description Microchip Technology Inc.
’s MCP98242 digital temperature sensor converts temperature from -40°C and +125°C to a digital word.
This sensor meets JEDEC Specification JC42.
4 Mobile Platform Memory Module Thermal Sensor Component.
It provides an accuracy of ±0.
5°C/±1°C (typical/maximum) from +75°C to +95°C.
In addition, this device has an internal 256 Byte EEPROM which can be used to store memory module and vendor information.
The MCP98242 digital temperature sensor comes with user-programmable registers that provide flexibility for DIMM temperature-sensing applications.
The registers allow user-selectable settings such as Shutdown or Low-Power modes and the specification of temperature event and critical output boundaries.
When the temperature changes beyond the specified boundary limits, the MCP98242 outputs an Event signal.
The user has the option of setting the Event output signal polarity as either an active-low or active-high comparator output for thermostat operation, or as a temperature event interrupt output for microprocessor-based systems.
The Event output can also be configured as a critical temperature output.
The EEPROM is designed specifically for DRAM DIMMs (Dual In-line Memory Modules) Serial Presence Detect (SPD).
The lower 128 bytes (address 00h to 7Fh) can be Permanent Write Protected (PWP) or Software Reversible Write Protected (SWP).
This allows DRAM vendor and product information to be stored and write protected.
The upper 128 bytes (address 80h to FFh) can be used for general purpose data storage.
These addresses are not write protected.
This sensor has an industry standard 2-wire, I2C/ S...


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