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MCP98243

Microchip Technology
Part Number MCP98243
Manufacturer Microchip Technology
Description Memory Module Temperature Sensor
Published Mar 1, 2010
Detailed Description www.DataSheet4U.com MCP98243 Memory Module Temperature Sensor w/ EEPROM for SPD Features • • • • • Meets JEDEC Specific...
Datasheet PDF File MCP98243 PDF File

MCP98243
MCP98243

Overview
www.
DataSheet4U.
com MCP98243 Memory Module Temperature Sensor w/ EEPROM for SPD Features • • • • • Meets JEDEC Specification JC42.
4-TSE2002B3 Temperature Sensor + 2 Kbit Serial EEPROM EEPROM for Serial Presence Detect (SPD) 2-wire I2C™/SMBus Interface Available Packages: - DFN-8, TDFN-8, UDFN-8, TSSOP-8 Description Microchip Technology Inc.
’s MCP98243 digital temperature sensor converts temperature from -40°C and +125°C to a digital word.
This sensor meets JEDEC Specification JC42.
4-TSE2002B3 Platform Memory Module Thermal Sensor Component.
It provides an accuracy of ±0.
2°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 MCP98243 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 boundaries.
When the temperature changes beyond the specified Event boundary limits, the MCP98243 outputs an Alert signal at the Event pin.
The user has the option of setting the temperature 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 EEPROM is designed specifically for DRAM DIMMs (Dual In-line Memory Modules) Serial Presence Detect (SPD).
The lower 128 Bytes (address 0x00 to 0x7F) 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 0x80 to 0xFF) can be used for general purpose data storage.
These addresses are not write protected.
This sensor has an industry standard 2-wire, I2C compatible serial interface, allowing up to eight devices to be controlled in a single serial bus.
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