MCP9801T-M/SN Microchip Technology, MCP9801T-M/SN Datasheet - Page 22
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
MCP9801T-M/SN
Manufacturer Part Number
MCP9801T-M/SN
Description
IC SENSOR THERMAL 2.7V 8SOIC
Manufacturer
Microchip Technology
Datasheets
1.MCP9800A0T-MOT.pdf
(42 pages)
2.MCP9800A0T-MOT.pdf
(4 pages)
3.MCP9801-MSN.pdf
(30 pages)
Specifications of MCP9801T-M/SN
Function
Temp Monitoring System (Sensor)
Topology
ADC (Sigma Delta), Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
I²C™/SMBus™
Output Alarm
No
Output Fan
Yes
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Temperature Threshold
Programmable
Full Temp Accuracy
3 C
Digital Output - Bus Interface
I2C, SMBus
Digital Output - Number Of Bits
9 bit to 12 bit
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Description/function
High Accuracy 12-bit Serial Input/Output, Thermal Monitors
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Supply Current
400 uA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP9801T-M/SN
Manufacturer:
WOOYUNG
Quantity:
8 323
MCP9800/1/2/3
5.3.4
The
Temperature Limit-Set register (T
9-bit data in two’s compliment format. This data
represents a maximum temperature limit. If the ambient
temperature
MCP9800/1/2/3 asserts an alert output. (Refer to
Section 5.3.4.3 “ALERT Output
This register uses the nine Most Significant bits (MSbs)
and all other bits are “don’t cares”.
The power-up default value of the T
80°C, or <0101 0000 0>b in binary.
REGISTER 5-5:
DS21909D-page 22
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
Upper Half:
Lower Half:
R/W-0
R/W-0
2
Sign
-1
MCP9800/1/2/3
°C
TEMPERATURE LIMIT-SET
REGISTER (T
exceeds
R/W-1
2
R-0
6
0
TEMPERATURE LIMIT-SET REGISTER (T
°C
has
this
SET
W = Writable bit
‘1’ = Bit is set
)
a
specified
SET
Configuration”).
R/W-0
2
16-bit
R-0
5
) which contains a
0
°C
SET
limit,
register is
read/write
R/W-1
2
R-0
4
the
0
°C
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
2
R-0
3
0
°C
SET
) – ADDRESS <
R/W-0
2
R-0
2
0
°C
2010 Microchip Technology Inc.
x = Bit is unknown
R/W-0
0000 0011
2
R-0
1
0
°C
>b
R/W-0
2
R-0
0
0
°C
bit 8
bit 0