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XRA1202IL16-F Datasheet(PDF) 5 Page - Exar Corporation |
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XRA1202IL16-F Datasheet(HTML) 5 Page - Exar Corporation |
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5 / 16 page  XRA1202/1202P 5 REV. 1.0.1 8-BIT I2C/SMBUS GPIO EXPANDER WITH RESET 1.1.1 I2C-bus Addressing There could be many devices on the I2C-bus. To distinguish itself from the other devices on the I2C-bus, the XRA1202/1202P has up to 16 I2C slave addresses using the A1-A0 address lines. Table 1 below shows the different addresses that can be selected. TABLE 1: I2C ADDRESS MAP A1 A0 I2C ADDRESS SCL GND 0x20 (0010 000X) SCL VCC 0x22 (0010 001X) SDA GND 0x24 (0010 010X) SDA VCC 0x26 (0010 011X) SCL SCL 0x30 (0011 000X) SCL SDA 0x32 (0011 001X) SDA SCL 0x34 (0011 010X) SDA SDA 0x36 (0011 011X) GND GND 0x40 (0100 000X) GND VCC 0x42 (0100 001X) VCC GND 0x44 (0100 010X) VCC VCC 0x46 (0100 011X) GND SCL 0x50 (0101 000X) GND SDA 0x52 (0101 001X) VCC SCL 0x54 (0101 010X) VCC SDA 0x56 (0101 011X) |
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