MCP98243 Microchip Technology Inc., MCP98243 Datasheet
MCP98243
Manufacturer Part Number
MCP98243
Description
Memory Module Temperature Sensor W/ Eeprom For Spd
Manufacturer
Microchip Technology Inc.
Datasheet
1.MCP98243.pdf
(60 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP98243-BE/MC
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
MCP98243-BE/MC
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
MCP98243-BE/ST
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
MCP98243-BE/ST
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
MCP98243T-BE/MC
Manufacturer:
MICROCHIP
Quantity:
12 000
Company:
Part Number:
MCP98243T-BE/MCAB
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
MCP98243T-BE/MCAB
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
MCP98243T-BE/MNY
Manufacturer:
MICROCHIP
Quantity:
12 000
Features
• Meets JEDEC Specification JC42.4-TSE2002B3
• Temperature Sensor + 2 Kbit Serial EEPROM
• EEPROM for Serial Presence Detect (SPD)
• 2-wire I
• Available Packages:
Temperature Sensor Features
• Temperature-to-Digital Converter
• Sensor Accuracy (Grade B):
• Specified V
• Operating Current: 200 µA (typical)
• Operating V
Serial EEPROM Features
• Specified V
• Operating Current:
• Permanent and Reversible Software Write Protect
• Software Write Protection for the lower 1 Kbit
• Organized as 1 block of 256 x 8-bit (2 Kbit)
Typical Applications
• DIMM Modules for Servers, PCs, and Laptops
• General Purpose Temperature Datalog
© 2009 Microchip Technology Inc.
Memory Module Temperature Sensor w/ EEPROM for SPD
- DFN-8, TDFN-8, UDFN-8, TSSOP-8
- ±0.2°C/±1°C (typ./max.)
- ±0.5°C/±2°C (typ./max.)
- ±1°C/±3°C (typ./max.)
- Write → 1.1 mA (typical) for 3.5 ms (typical)
- Read → 100 µA (typical)
2
C™/SMBus Interface
DD
DD
DD
Range: 3.0V to 3.6V
Range: 1.8V to 5.5V
Range: 2.7V to 5.5V
DIMM MODULE
MCP98243
→
→
→
-20°C to +125°C
+40°C to +125°C
+75°C to +95°C
Description
Microchip
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/maxi-
mum) 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
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 micropro-
cessor-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 pur-
pose data storage. These addresses are not write
protected.
This sensor has an industry standard 2-wire, I
compatible serial interface, allowing up to eight devices
to be controlled in a single serial bus.
Package Types
8-Pin 2x3 DFN/TDFN/UDFN *
GND
* Includes Exposed Thermal Pad (EP); see
A0
A1
A2
MCP98243
1
2
3
4
Technology
modes
EP
9
8
7
6
5
V
Event
SCL
SDA
and
DD
Inc.’s
GND
the
A0
A1
A2
MCP98243
8-Pin TSSOP
1
2
3
4
specification
DS22153A-page 1
Table
8
7
6
5
3-1.
V
Event
SDA
digital
SCL
DD
2
of
C
Related parts for MCP98243
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: