EMC2303-1-KZ-TR SMSC, EMC2303-1-KZ-TR Datasheet - Page 28
![no-image](/images/manufacturer_photos/0/6/617/smsc_sml.jpg)
EMC2303-1-KZ-TR
Manufacturer Part Number
EMC2303-1-KZ-TR
Description
Industrial Temperature Sensors RPM B Fan Controller w/HW Thermal Shutdwn
Manufacturer
SMSC
Datasheet
1.EMC2300-AZC-TR.pdf
(82 pages)
Specifications of EMC2303-1-KZ-TR
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- Current page: 28 of 82
- Download datasheet (2Mb)
Revision 0.32 (06-23-08)
6.8.3
6.9
SENSOR ERROR
TEMPERATURE
+127
+25
-127
-50
-25
+50
+1
-1
Thermal Zones
0
The temperature change is computed by measuring the change in Vbe at two different operating points
of the diode to which the Remote x+ and Remote x- pins are connected. But accuracy of the
measurement also depends on non-ideality factor of the process the diode is manufactured on.
Temperature Data Format
Temperature data can be read from the three temperature registers:
Table 6.6, "Temperature Data Format"
data, represented by an 8-bit, two’s complement word with an LSB equal to 1.0
0
Each temperature measurement input is assigned to a Thermal Zone to control the PWM outputs in
Auto Fan Control mode. These zone assignments are as follows:
0
0
0
0
0
C
0
0
C
0
C
C
C
C
C
C
C
Internal Temp Reading register (26h)
Remote Diode 1 Temp Reading register (25h)
Remote Diode 2 Temp Reading register (27h)
Zone 1 = Remote Diode 1 (Processor)
Zone 2 = Ambient (Internal) Temperature Sensor
Zone 3 = Remote Diode 2
READING (DEC)
Table 6.6 Temperature Data Format
-127
127
128
-50
-25
25
50
-1
0
1
DATASHEET
shows several examples of the format of the temperature digital
28
Fan Control Device with High Frequency PWM and Temperature Monitors
READING (HEX)
CEh
E7h
FFh
7Fh
81h
00h
01h
19h
32h
80h
DIGITAL OUTPUT
0
1000 0001
0000 0000
0000 0001
0001 1001
1000 0000
C.
0011 0010
1100 1110
1110 0111
0111 1111
1111 1111
SMSC EMC2300
Datasheet
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