MCP98243-BE/MC Microchip Technology, MCP98243-BE/MC Datasheet - Page 11

• 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

3.0
The descriptions of the pins are listed in
TABLE 3-1:
3.1
These pins are device address input pins.
The address pins correspond to the Least Significant
bits (LSb) of address bits. The Most Significant bits
(MSb) (A6, A5, A4, A3). This is shown in
TABLE 3-2:
The A0 Address pin is a multi-function pin. This input
pin is also used for high voltge input V
EEPROM
Section 5.3.3 “Write Protection”.
All address pin have an internal pull-down resistors.
3.2
The GND pin is the system ground pin.
3.3
SDA is a bidirectional input/output pin, used to serially
transmit data to/from the host controller. This pin
requires a pull-up resistor. (See Section 4.0 “Serial
Communication”).
© 2009 Microchip Technology Inc.
Sensor
EEPROM
EEPROM
Write Protect
DFN, TDFN,
Note:
UDFN
Device
MCP9843/98243
1
2
3
4
5
6
7
8
9
PIN DESCRIPTION
Address Pins (A0, A1, A2)
Ground Pin (GND)
Serial Data Line (SDA)
User-selectable address is shown by X.
Software
PIN FUNCTION TABLES
MCP9843/98243 ADDRESS
BYTE
A6
0
1
0
TSSOP
Address Code
—
1
2
3
4
5
6
7
8
Write
A5
0
0
1
A4
1
1
1
Protect
A3
1
0
0
Symbol
Event
GND
HV
SDA
SCL
V
EP
A0
A1
A2
A2
DD
X
Table
feature,
Table
to enable the
Address
Slave
A1
X
3-1.
3-2.
A0
see
X
Slave Address and EEPROM Software Write Protect high voltage
input (V
Slave Address
Slave Address
Ground
Serial Data Line
Serial Clock Line
Temperature Alert Output
Power Pin
Exposed Thermal Pad (EP); can be connected to GND.
HV
)
3.4
The SCL is a clock input pin. All communication and
timing is relative to the signal on this pin. The clock is
generated by the host or master controller on the bus.
(See Section 4.0 “Serial Communication”).
3.5
The MCP9843/98243 temperature Event output pin is
an open-drain output. The device outputs a signal
when the ambient temperature goes beyond the user-
programmed temperature limit. (see Section 5.2.3
“Event Output Configuration”).
3.6
V
specified in the DC electrical specification table, is
applied on this pin.
3.7
There is an internal electrical connection between the
Exposed Thermal Pad (EP) and the GND pin; they can
be connected to the same potential on the Printed Cir-
cuit Board (PCB). This provides better thermal conduc-
tion from the PCB to the die.
DD
is the power pin. The operating voltage range, as
Serial Clock Line (SCL)
Temperature Alert, Open-Drain
Output (Event)
Power Pin (V
Exposed Thermal Pad (EP)
MCP9843/98243
Description
DD
)
DS22153C-page 11