MCP98243-BE/ST Microchip Technology, MCP98243-BE/ST Datasheet - Page 31

• Manufacturer Part Number: MCP98243-BE/ST
• Description: IC TEMP SENSOR 3V 2WIRE 8-TSSOP
• Manufacturer: Microchip Technology

Specifications of MCP98243-BE/ST

• Package / Case: 8-TSSOP
• Output Type: I²C™/SMBus™
• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Temperature Threshold: + 125 C
• Full Temp Accuracy: 1 C
• Digital Output - Bus Interface: 2-Wire, SMBus, I2C
• Digital Output - Number Of Bits: 8 bit
• Supply Voltage (max): 6 V
• Supply Voltage (min): 1.8 V
• Description/function: Thermal Management ICs
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 100 uA to 1100 uA
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 0.5°C
• Temperature Sensing Range: -40°C To +125°C
• Supply Voltage Range: 2.7V To 5.5V
• Sensor Case Style: TSSOP
• No. Of Pins: 8
• Rohs Compliant: Yes
• Resolution (bits): 8bit
• Supply Voltage Min: 3V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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 5-9:
FIGURE 5-9:
Section 4.0 “Serial Communication”).
© 2009 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-2
bit 1-0
SDA
SCL
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
U-0
Section 5.2.4
—
2
0
RESOLUTION → ADDRESS
Timing Diagram for Changing T
Register
Address Byte
1
3
4
1
W = Writable bit
‘1’ = Bit is set
5
A
2
5-2).
A
6
1
U-0
MCP9843/98243
—
CONV
7
A
0
“Temperature
CONV
CONV
W
8
= 30 ms typical)
A
C
K
= 130 ms typical)
= 260 ms typical)
1
0
Resolution Pointer
U-0
—
2
0
3
0
‘0000 1000’b
CONV
4
0
A
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
Resolution to 0.0625°C <0000 0011>b (See
5
1
= 65 ms typical)
U-0
6
0
—
MCP9843/98243
7
0
8
0
A
C
K
MCP9843/98243
1
0
U-0
—
2
0
3
0
Data
4
0
x = Bit is unknown
5
0
R/W-0
6
0
MCP9843/98243
7
1
Resolution
DS22153C-page 31
8
1
A
C
K
P
R/W-0
bit 0