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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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STV8207 数据表(PDF) 46 Page - STMicroelectronics |
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STV8207 数据表(HTML) 46 Page - STMicroelectronics |
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46 / 149 page  I²C Interface STV82x7 46/149 11 I²C Interface 11.1 I²C Address and Protocol The STV82x7 I²C interface works in Slave mode and is fully compliant with I²C standards in Fast mode (maximum frequency of 400 kHz). Two pairs of I²C chip addresses are used to connect two STV82x7 chips to the same I²C serial bus. The device address pairs are defined by the polarity of the ADR_SEL pin and are listed in the following table: Protocol Description ● Write Protocol ● Read Protocol ● W = Write address, ● R = Read address, ● A = Acknowledge, ● N=No acknowledge. ● Sub-address is the register address pointer; this value auto-increments for both write and read. Table 8: I²C Read/Write Addresses ADR Write Address (W) Read Address (R) LOW (connected to GND1) 80h 81h HIGH (connected to VDD1) 84h 85h Start W A Sub-address A Data A .... A Data A Stop Start W A Sub-address A Stop Start R A Data A .... A Data N |
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