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MCP9804-E/MS データシート(PDF) 32 Page - Microchip Technology

部品番号 MCP9804-E/MS
部品情報  짹0.25째C Typ. Accuracy Digital Temperature Sensor
PDF  54 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP9804-E/MS データシート(HTML) 32 Page - Microchip Technology

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MCP9804
DS22203A-page 32
© 2009 Microchip Technology Inc.
FIGURE 5-11:
Alert Output Condition.
TUPPER
TLOWER
TCRIT
TA
TUPPER - THYST
Comparator
Interrupt
S/w Int. Clear
Critical Only
TCRIT - THYST
1
2
3
4
5
6
TABLE 5-3:
ALERT OUTPUT CONDITIONS
Note
Alert Output Boundary
Conditions
Alert Output
TA Bits
Comparator
Interrupt
Critical
15
14
13
1TA ≥ TLOWER
H
L
H
000
2TA < TLOWER - THYST
L
L
H
001
3TA > TUPPER
L
L
H
010
4
TA ≤ TUPPER - THYST
H
L
H
000
5
TA ≥ TCRIT
L
L
L
110
6TA < TCRIT - THYST
L
H
H
010
*
When TA ≥ TCRIT and TA < TCRIT - THYST the Alert output is Comparator mode and bits 0 of
CONFIG (Alert output mode) is ignored. Also, in Interrupt mode, if Interrupt Clear bit is not set
then when temperature drops below the critical limit (note 6), the Alert output remains asserted.
TLOWER -THYST
TLOWER -THYST
TUPPER - THYST
1
3
4
2
Note:
*



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