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MCP9808 Scheda tecnica(PDF) 32 Page - Microchip Technology

Il numero della parte MCP9808
Spiegazioni elettronici  짹0.5째C Maximum Accuracy Digital Temperature Sensor
PDF  52 Pages
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
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MCP9808 Scheda tecnica(HTML) 32 Page - Microchip Technology

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MCP9808
DS25095A-page 32
© 2011 Microchip Technology Inc.
FIGURE 5-10:
Alert Output Conditions.
TUPPER
TLOWER
TCRIT
TA
TUPPER – THYST
Comparator
Interrupt
S/w Int. Clear
Critical Only
TCRIT – THYST
12
3
4
5
7
Notes
Alert Output Boundary
Conditions
Comparator
Interrupt
Critical
TA Bits
Alert Output (Active-Low/High)
15
14
13
1
TA ≥ TLOWER
High/Low
Low/High
High/Low
00
0
2
TA < TLOWER – THYST
Low/High
Low/High
High/Low
00
1
3
TA > TUPPER
Low/High
Low/High
High/Low
01
0
4
TA ≤ TUPPER – THYST
High/Low
Low/High
High/Low
00
0
5
TA ≥ TCRIT
Low/High
Low/High
Low/High
11
0
6
When TA ≥ TCRIT, the Alert output is forced to Comparator mode and the CONFIG<0> (Alert Output
Mode bit) is ignored until TA < TCRIT – THYST. In the Interrupt mode, if the interrupt is not cleared
(bit 5 of CONFIG), as shown in the diagram at
Note 6, then Alert will remain asserted at Note 7
until the interrupt is cleared by the controller.
7
TA < TCRIT – THYST
Low/High
High/Low
High/Low
01
0
TLOWER – THYST
TLOWER – THYST
TUPPER – THYST
13
42
Notes:
6
Comparator
Interrupt
S/w Int. Clear
Critical Only



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