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MCP9803-M/MSG Datasheet(PDF) 18 Page - Microchip Technology

No. de pieza MCP9803-M/MSG
Descripción Electrónicos  2-Wire High-Accuracy Temperature Sensor
PDF  30 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP9803-M/MSG Datasheet(HTML) 18 Page - Microchip Technology

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MCP9800/1/2/3
DS21909C-page 18
 2010 Microchip Technology Inc.
5.3.2
SENSOR CONFIGURATION
REGISTER (CONFIG)
The
MCP9800/1/2/3
has
an
8-bit
read/write
Configuration register that allows the user to select the
different features. These features include shutdown,
ALERT output select as comparator or interrupt output,
ALERT output polarity, fault queue cycle, temperature
measurement resolution and One-shot mode (single
conversion while in shutdown). These functions are
described in detail in the following sections.
REGISTER 5-3:
CONFIGURATION REGISTER (CONFIG) – ADDRESS
<0000 0001>b
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
One-Shot
Resolution
Fault Queue
ALERT
Polarity
COMP/INT
Shutdown
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
ONE-SHOT
bit
1
= Enabled
0
= Disabled (Power-up default)
bit 5-6
 ADC RESOLUTION bits
00
= 9 bit or 0.5°C (Power-up default)
01
= 10 bit or 0.25°C
10
= 11 bit or 0.125°C
11
= 12 bit or 0.0625°C
bit 3-4
FAULT QUEUE
bits
00
= 1 (Power-up default)
01
=2
10
=4
11
=6
bit 2
ALERT POLARITY
bit
1
= Active-high
0
= Active-low (Power-up default)
bit 1
COMP/INT
bit
1
= Interrupt mode
0
= Comparator mode (Power-up default)
bit 0
SHUTDOWN
bit
1
= Enable
0
= Disable (Power-up default)



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