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F75373S Datasheet(PDF) 11 Page - Feature Integration Technology Inc. |
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F75373S Datasheet(HTML) 11 Page - Feature Integration Technology Inc. |
11 / 49 page ![]() Fintek Feature Integration Technology Inc. V0.25P 6 F75373 (b) Serial bus read form internal address register followed by the data byte 0 Start By Master 01011 01 D7 D6 D5 D4 D3 D2 D1 D0 ack by 373S R/W ack by 373S D7 D6 D5 D4 D3 D2 D1 D0 Stop by Master 78 0 7 8 Frame 2 Internal Index Register Byte Frame 4 Data Byte Frame 1 Serial Bus Address Byte Figure 2. Serial Bus read from Internal Address Register followed by the Data Byte 01234567801 345 26 7 1 01 1 00 1 R/W 8 ack by 373S Frame 3 Serial Bus Byte ack by 373S SCL SDA SCL(Continued) SDA(Continued) 5.3 Temperature Measurement Machine 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 Table 4-1. Temperature 8-Bit Digital Output 8-Bit Binary 8-Bit Hex +125°C 0111,1101 7Dh +25°C 0001,1001 19h +2°C 0000,0010 02h +1°C 0000,0001 01h +0°C 0000,0000 00h -1°C 1111,1111 FFh -2°C 1111,1110 FEh -25°C 1110,0111 E7h -50°C 1100,1110 CEh Table 4-1. 5.3.1 Monitor Temperature from thermistor The F75373S 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 Figure 4-3, the themistor is |
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