MCP98242T-CE/MC Microchip Technology, MCP98242T-CE/MC Datasheet - Page 24

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

Specifications of MCP98242T-CE/MC

• 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
• Other names: MCP98242T-CE/MCTR

MCP98242
5.1.7
This register allows the user to change the sensor
resolution
Resolution”). The POR default resolution is 0.25°C.
The selected resolution is also reflected in the
Capability register (see Register 5-2).
REGISTER 5-8:
FIGURE 5-8:
Section 4.0 “Serial Communication”).
DS21996B-page 24
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-4
bit 3-0
SCLK
SDA
U-0
—
RESOLUTION REGISTER
(see
S
Unimplemented: Read as ‘0’
Resolution:
00 = LSB = 0.5°C (t
01 = LSB = 0.25°C (power up default, t
10 = LSB = 0.125°C (t
11 = LSB = 0.0625°C (t
1
0
Section 5.2.3.2
U-0
—
RESOLUTION → ADDRESS ‘0000 1000’b
Timing Diagram for Changing T
2
0
Address Byte
3
1
4
1
W = Writable bit
‘1’ = Bit is set
A
5
2
6
A
1
U-0
—
CONV
A
7
0
“Temperature
CONV
MCP98242
CONV
W
8
= 30 ms typ.)
= 130 ms typ.)
A
C
K
= 260 ms typ.)
1
0
U-0
Resolution Pointer
—
2
0
3
0
CONV
A
4
0
Resolution to 0.0625°C <0000 0011>b (See
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
5
1
= 65 ms typ.)
U-0
—
6
0
7
0
MCP98242
8
0
A
C
K
1
0
U-0
—
2
0
3
0
© 2008 Microchip Technology Inc.
Data
4
0
x = Bit is unknown
5
0
R/W-0
6
0
Resolution
7
1
MCP98242
8
1
A
C
K
R/W-0
P
bit 0