EMC6D103S-CZC SMSC, EMC6D103S-CZC Datasheet - Page 55
EMC6D103S-CZC
Manufacturer Part Number
EMC6D103S-CZC
Description
Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
Manufacturer
SMSC
Datasheet
1.EMC6D103S-CZC-TR.pdf
(92 pages)
Specifications of EMC6D103S-CZC
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Fan Control Device with High Frequency PWM Support and Hardware Monitoring Features
Datasheet
SMSC EMC6D103
8.2.3
INPUT
+2.5V
+12V
Register
Address
Vccp
VCC
+5V
20h
21h
22h
23h
24h
NOMINAL
VOLTAGE
2.25V
12.0V
Read/
Write
2.5V
3.3V
5.0V
These registers become read only when the Lock bit is set. Any further attempts to write to these
registers shall have no effect.
Offset Register Ambient only applies to the internal (ambient) temperature reading. This register
contains a 2's complement value, which is added (or subtracted if the number is negative) to the
ambient temperature reading. The default value in the offset register is zero, so initially zero is always
added to the temperature reading.
Offset Register 2 only applies to the remote diode 2 temperature reading. This register contains a
2's complement value, which is added (or subtracted if the number is negative) to external temperature
reading 2. The default value in the offset register is zero, so initially zero is always added to the
temperature reading.
Offset Register 1 only applies to the remote diode 1 temperature reading. This register contains a
2's complement value, which is added (or subtracted if the number is negative) to the external
temperature reading 1 reading. The default value in the offset register is zero, so initially zero is always
added to the temperature reading.
Registers 20-24h: Voltage Reading
The Voltage Reading registers reflect the current voltage of the EMC6D103 voltage monitoring inputs.
Voltages are presented in the registers at ¾ full scale for the nominal voltage, meaning that at nominal
voltage, each register will read C0h.
The Voltage Reading registers will be updated automatically by the EMC6D103 Chip with a minimum
frequency of 4Hz. These registers are read only – a write to these registers has no effect.
R
R
R
R
R
READING AT
REGISTER
VOLTAGE
NOMINAL
Register Name
+2.5V Reading
+12V Reading
Vccp Reading
VCC Reading
+5V Reading
C0h
C0h
C0h
C0h
C0h
Table 8.4 Registers 20-24h: Voltage Reading
Table 8.5 Voltage vs. Register Reading
MAXIMUM
VOLTAGE
16.00V
3.32V
3.00V
4.38V
6.64V
DATASHEET
(MSb)
Bit 7
7
7
7
7
7
55
Bit 6
6
6
6
6
6
READING AT
REGISTER
MAXIMUM
VOLTAGE
FFh
FFh
FFh
FFh
FFh
Bit 5
5
5
5
5
5
Bit 4
4
4
4
4
4
Bit 3
VOLTAGE
MINIMUM
3
3
3
3
3
0V
0V
0V
0V
0V
Bit 2
2
2
2
2
2
MINIMUM VOLTAGE
Bit 1
Revision 0.3 (03-01-07)
1
1
1
1
1
READING AT
REGISTER
(LSb)
Bit 0
00h
00h
00h
00h
00h
0
0
0
0
0
Default
Value
N/A
N/A
N/A
N/A
N/A
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