MCP98243-BE/MC Microchip Technology, MCP98243-BE/MC Datasheet - Page 22

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

Specifications of MCP98243-BE/MC

• Package / Case: 8-DFN
• 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
• Full Temp Accuracy: +/- 3 C
• Digital Output - Bus Interface: Serial (2-Wire, I2C)
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 0.5°C
• Temperature Sensing Range: -40°C To +125°C
• Supply Current: 200µA
• Supply Voltage Range: 2.7V To 5.5V
• Sensor Case Style: DFN
• 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

MCP9843/98243
FIGURE 5-3:
Communication”.
DS22153C-page 22
• Writing to the CONFIG Register to Enable the Event Output pin <0000 0000 0000 1000>b.
SDA
SCL
Note: this is an example routine:
i2c_start();
i2c_write(AddressByte & 0xFE);
i2c_write(0x01);
i2c_write(0x00);
i2c_write(0x08);
i2c_stop();
Timing Diagram for Writing to the Configuration Register (See Section 4.0 “Serial
S
1
0
2
0
Address Byte
1
3
4
1
5
A
2
A
6
1
1
0
MCP9843/98243
7
A
0
0
2
W
8
3
0
MSB Data
A
C
K
4
0
1
0
0
5
// send START command
//WRITE Command
//also, make sure bit 0 is cleared ‘0’
// Write CONFIG Register
// Write data
// Write data
// send STOP command
Configuration Pointer
2
0
6
0
MCP9843/98243
3
0
7
0
4
0
8
0
5
0
A
C
K
6
0
1
0
MCP9843/98243
7
0
2
0
8
1
3
0
LSB Data
A
C
K
4
0
5
1
© 2009 Microchip Technology Inc.
6
0
MCP9843/98243
7
0
8
0
A
C
K
P