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MCP9801 датащи(PDF) 13 Page - Microchip Technology

номер детали MCP9801
подробное описание детали  2-Wire High-Accuracy Temperature Sensor
PDF  30 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP9801 датащи(HTML) 13 Page - Microchip Technology

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 2004 Microchip Technology Inc.
DS21909B-page 13
MCP9800/1/2/3
4.3.4
SENSOR CONFIGURATION
REGISTER (CONFIG)
The MCP9800/1/2/3 has an 8-bit read/write configura-
tion register (CONFIG) 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 4-5:
CONFIGURATION REGISTER (CONFIG)
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
Shut-
down
bit 7
bit 0
bit 7
ONE-SHOT bit
1
= Enabled
0
= Disabled (Power-up default)
bit 5-6
Σ∆ ADC RESOLUTION bit
00
= 9 bit (Power-up default)
01
= 10 bit
10
= 11 bit
11
= 12 bit
bit 3-4
FAULT QUEUE bit
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)
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



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