EMC1422-1-ACZL-TR SMSC, EMC1422-1-ACZL-TR Datasheet - Page 23

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EMC1422-1-ACZL-TR

Manufacturer Part Number
EMC1422-1-ACZL-TR
Description
Board Mount Temperature Sensors Dual Temp Snsr
Manufacturer
SMSC
Datasheet

Specifications of EMC1422-1-ACZL-TR

Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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1°C Temperature Sensor with Hardware Thermal Shutdown
Datasheet
SMSC EMC1422
5.12
TEMPERATURE (°C)
64
65
127
127.875
128
190
191
>= 191.875
i.e. CPU substrate PNP
substrate transistor
Typical remote
Local Ground
Note 5.1
Note 5.2
Note 5.3
Note 5.4
The EMC1422 is hard-wired to measure a specific kind of thermal diode and none of the measurement
options can be changed by software.
External Diode Connections
In default mode, all temperatures < 0°C will be reported as 0°C.
In the extended range, all temperatures < -64°C will be reported as -64°C.
For the default range, all temperatures > +127.875°C will be reported as +127.875°C.
For the extended range, all temperatures > +191.875°C will be reported as +191.875°C.
Table 5.3 Temperature Data Format (continued)
DEFAULT RANGE 0°C TO 127°C
010 0000 0000
010 0000 1000
011 1111 1000
011 1111 1111
011 1111 1111
Note 5.3
011 1111 1111
011 1111 1111
011 1111 1111
DN
DP
to
to
Figure 5.7 Diode Configurations
discrete PNP transistor
Typical remote
i.e. 2N3906
DATASHEET
Figure 5.7
23
shows the different diode configurations.
DP
DN
to
to
EXTENDED RANGE -64°C TO 191°C
100 0000 0000
100 0000 1000
101 1111 1000
101 1111 1111
110 0000 0000
111 1111 0000
111 1111 1000
111 1111 1111
Note 5.4
discrete NPN transistor
Typical remote
i.e. 2N3904
Revision 1.36 (07-02-09)
DP
DN
to
to

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