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MCP98244T-BE/MNYAB

Description
board mount temperature sensors jedec dimm serial OP sensor + spd eeprom
CategoryThe sensor   
File Size926KB,52 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance  
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MCP98244T-BE/MNYAB Overview

board mount temperature sensors jedec dimm serial OP sensor + spd eeprom

MCP98244T-BE/MNYAB Parametric

Parameter NameAttribute value
ManufactureMicrochi
Product CategoryBoard Mount Temperature Sensors
RoHSYes
PackagingReel
Factory Pack Quantity4000
MCP98244
DDR4 DIMM Temperature Sensor with EEPROM for SPD
Features
• Meets JEDEC Specification
- MCP98244 --> JC42.4-TSE2004B1
Temperature Sensor with 4 Kbit Serial
EEPROM for Serial Presence Detect (SPD)
• 1MHz, 2-wire I
2
C™ Interface
• Specified V
DD
Range: 1.7V to 3.6V
• Operating Current: 100 µA (typ., EEPROM Idle)
• Available Package: TDFN-8
Description
Microchip Technology Inc.’s MCP98244 digital
temperature sensor converts temperature from -40°C
and +125°C to a digital word. This sensor meets
JEDEC Specification JC42.4-TSE3000B1 Memory
Module Thermal Sensor Component. It provides an
accuracy of ±0.2°C/±1°C (typical/maximum) from
+75°C to +95°C with an operating voltage of 1.7V to
3.6V. In addition, MCP98244 has an integrated
EEPROM with two banks of 256 by 8 bit EEPROM (4k
Bit) which can be used to store memory module details
and vendor information.
The MCP98244 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 MCP98244 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 MCP98244 EEPROM is designed specifically for
DRAM DIMMs (Dual In-line Memory Modules) Serial
Presence Detect (SPD). It has four 128 Byte pages,
which can be Software Write Protected individually.
This allows DRAM vendor and product information to
be stored and write-protected.
This sensor has an industry standard I
2
C Fast Mode
Plus compatible 1 MHz serial interface.
Temperature Sensor Features
• Temperature-to-Digital Converter (°C)
• Sensor Accuracy (Grade B):
-
±0.2°C/±1°C (typ./max.)
+75°C to +95°C
- ±0.5°C/±2°C (typ./max.)
+40°C to +125°C
- ±1°C/±3°C (typ./max.)
-40°C to +125°C
Serial EEPROM Features
• Operating Current:
- Write
250
µA (typical) for 3 ms (typical)
- Read
100
µA (typical)
• Reversible Software Write Protect
• Software Write Protection for each 1 Kbit Block
• Organized as two banks of 256 x 8-bit (2 Kbit x 2)
Typical Applications
• DIMM Modules for Servers, PCs, and Laptops
• Temperature Sensing for Solid State Drive (SSD)
• General Purpose Temperature Datalog
DIMM MODULE
Package Types
8-Pin 2x3 TDFN*
A0 1
A1 2
A2 3
GND 4
EP
9
8 V
DD
7 Event
6 SCL
5 SDA
* Includes Exposed Thermal Pad (EP); see
Table 3-1.
MCP98244
2012-2013 Microchip Technology Inc.
DS22327C-page 1

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MCP98244T-BE/MNYAB MCP98244T-BE/MNY
Description board mount temperature sensors jedec dimm serial OP sensor + spd eeprom Local temperature sensing: -40°C ~ 125°C Remote temperature sensing: - Sensor type: Internal Resolution: - Output type: I²C DDR4 DIMM temperature sensor, EEPROM for SPD
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