MCP98242T-BE/MCBAC Microchip Technology, MCP98242T-BE/MCBAC Datasheet - Page 19

• Manufacturer Part Number: MCP98242T-BE/MCBAC
• Description: JEDEC DIMM Serial Output Temp Sensor + SPD EEPROM 8 DFN 2X3mm T/R
• Manufacturer: Microchip Technology

Specifications of MCP98242T-BE/MCBAC

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Full Temp Accuracy: +/- 2 C
• Digital Output - Bus Interface: Serial (2-Wire, I2C)
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 5-4:
“Serial Communication”).
© 2008 Microchip Technology Inc.
SCLK
SDA
• Writing 90°C to the T
• Reading from the T
SCLK
SDA
SCLK
SDA
S
1
0
S
S
2
0
1
0
Timing Diagram for Writing and Reading from the T
Address Byte
1
0
3
1
2
0
Address Byte
2
0
4
1
UPPER
3
1
UPPER
Address Byte
3
1
5
A
2
4
1
4
1
A
6
1
A
5
2
Register <0000 0101 1010 0000>b.
Register.
A
5
2
A
0
7
6
A
1
MCP98242
W
6
A
1
0
8
1
A
7
0
MCP98242
A
7
0
2
0
A
C
K
8
R
MCP98242
W
8
1
3
0
0
MSB Data
A
C
K
A
C
K
4
0
2
0
T
1
0
UPPER
1
0
0
3
5
0
2
0
2
0
1
6
4
0
T
3
0
MSB Data
Pointer
UPPER
3
0
7
5
0
0
4
0
MCP98242
4
0
8
1
6
0
0
5
Pointer
5
0
A
C
K
7
1
6
1
MCP98242
6
0
1
1
8
0
7
0
7
1
A
C
K
2
0
8
1
Master
MCP98242
0
8
3
1
A
C
K
LSB Data
UPPER
A
C
K
4
0
1
1
Note:
5
0
2
0
6
0
3
1
Register (See Section 4.0
LSB Data
MCP98242
7
0
4
0
MCP98242
It is not necessary to
select
pointer if it was set from
the previous read/write.
8
0
5
0
A
C
K
6
0
P
DS21996B-page 19
7
0
the
8
0
Master
N
A
K
register
P