MCP98243-BE/MC Microchip Technology, MCP98243-BE/MC Datasheet - Page 18

• 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
5.1.1
This is a read-only register used to identify the
temperature sensor capability. For example, the
MCP9843/98243 device is capable of providing
temperature
temperature below and above 0°C, providing ±1°C and
±2°C accuracy over the active and monitor temperature
ranges
programmable temperature event boundary trip limits.
Register 5-2
functions are described in further detail in the following
sections.
REGISTER 5-2:
DS22153C-page 18
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15-8
bit 7
bit 6
bit 5
bit 4-3
bit 2
SHDN Status
U-0
R-1
—
(respectively)
CAPABILITY REGISTER
describes the Capability register. These
at
Unimplemented: Read as ‘0’
Event output status during Shutdown (SHDN Status):
0 =
1 =
I
0 =
1 =
High Voltage Input
0 =
1 =
Resolution:
00 = 0.5°C
01 = 0.25°C (power up default)
10 = 0.125°C
11 = 0.0625°C
These bits reflect the selected resolution (see Section 5.2.4 “Temperature Resolution”)
Temperature Measurement Range (Meas. Range):
0 =
1 =
2
t
OUT
C Bus time-out (t
0.25°C
U-0
R-1
—
Range
CAPABILITY REGISTER (READ-ONLY) → ADDRESS ‘0000 0000’b
Event output remains in previous state. If the output asserts before shutdown command, it
remains asserted during shutdown.
Event output de-asserts during shutdown. After shutdown, it takes t
output (power-up default)
Bus time-out range is 10 ms to 60 ms
Bus time-out range is 25 ms to 35 ms (power-up default)
Pin A0 does not accept High Voltage
Pin A0 accepts High Voltage for the EEPROM Write Protect feature (power-up default)
T
The part can measure temperature below 0°C (power-up default)
A
= 0 (decimal) for temperature below 0°C
and
resolution,
W = Writable bit
‘1’ = Bit is set
V
providing
U-0
R-1
OUT
—
HV
Range):
measuring
user-
U-0
R-0
—
Resolution
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U-0
R-1
—
Meas Range
U-0
R-1
—
© 2009 Microchip Technology Inc.
x = Bit is unknown
CONV
Accuracy
U-0
R-1
—
to re-assert the Event
Temp Alarm
U-0
R-1
—
bit 8
bit 0