f75375 Feature Integration Technology Inc., f75375 Datasheet - Page 12

• Manufacturer Part Number: f75375
• Description: Fintek Hardware Monitor Ic Datasheet
• Manufacturer: Feature Integration Technology Inc.

Monitor Temperature from thermistor
6.3
The temperature data format is 8-bit two-complement for thermal sensor. The 8-bit temperature data can be obtained by
reading through register. The format of the temperature data is show in
The F75375S can connect two thermistors to measure environment temperature or remote temperature. The specification
of thermistor should be considered to (1) β value is 3435K (2) resistor value is 10K ohm at 25°C. In the
thermistor is connected by a serial resistor with 10K Ohm, then connected to VREF (pin13).
SDA(Continued)
SCL(Continued)
SDA
SCL
Fintek
Temperature Measurement Machine
Start by
Master
0
0
Figure 2. Serial Bus read from Internal Address Register followed by the Data Byte
1
Temperature
+125°C
Serial Bus Address Byte
+25°C
-25°C
-50°C
+2°C
+1°C
+0°C
-1°C
-2°C
0
0
0
Frame 1
1
1
1
1
2
0
Serial Bus Byte
0
3
1
Frame 3
1
4
1
8-Bit Binary
0001,1001
0000,0010
0000,0001
0000,0000
0111,1101
1100,1110
1111,1110
1110,0111
1111,1111
R/W
7
5
0
375S
ack
by
8
6
1
Table 4-1.
R/W
6
0
D7
7
8-Bit Digital Output
ack
by
375S
D6
8
Internal Index Register Byte
Feature Integration Technology Inc.
D5
0
D7
Frame 2
D4
1
D6
Table 4-1.
D3
2
D5
8-Bit Hex
CEh
7Dh
FFh
FEh
E7h
19h
02h
01h
00h
F75375S/F75375SG
Data Byte
D2
3
Frame 4
D4
D1
4
D3
7
D0
5
D2
375S
8
ack
6
D1
by
7
D0
ack
by
375S
8
Figure
Stop by
Master
5-3, the
July 2007
V0.26P