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ADM1191 Datasheet(PDF) 10 Page - Analog Devices |
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ADM1191 Datasheet(HTML) 10 Page - Analog Devices |
10 / 16 page ADM1191 Rev. B | Page 10 of 16 Base Address A1 Pin State A0 Pin State A1 Pin Logic State A0 Pin Logic State Address in Binary1 Address in Hex Floating Floating 10 10 0111010X 0x74 Floating High 10 11 0111011X 0x76 High Ground 11 00 0111100X 0x78 High Resistor to ground 11 01 0111101X 0x7A High Floating 11 10 0111110X 0x7C High High 11 11 0111111X 0x7E 1 X = don’t care. ACKNOWLEDGE BY SLAVE ACKNOWLEDGE BY SLAVE SCL (CONTINUED) D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 1 9 1 9 STOP BY MASTER SDA (CONTINUED) FRAME 3 DATA BYTE FRAME N DATA BYTE SCL START BY MASTER 1 9 1 9 D7 D6 D5 D4 D3 D2 D1 D0 ACKNOWLEDGE BY SLAVE ACKNOWLEDGE BY SLAVE FRAME 1 SLAVE ADDRESS FRAME 2 COMMAND CODE SDA A0A A0B R/W A1B A1A 1 1 0 Figure 16. General I2C Write Timing Diagram SCL START BY MASTER 1 9 1 9 D7 D6 D5 D4 D3 D2 D1 D0 ACKNOWLEDGE BY SLAVE ACKNOWLEDGE BY MASTER NO ACKNOWLEDGE ACKNOWLEDGE BY MASTER FRAME 1 SLAVE ADDRESS FRAME 2 DATA BYTE SCL (CONTINUED) D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 1 9 1 9 STOP BY MASTER SDA (CONTINUED) FRAME 3 DATA BYTE FRAME N DATA BYTE SDA A0A A0B R/W A1B A1A 1 1 0 Figure 17. General I2C Read Timing Diagram SCL SCL SDA P S tHD;STA tHD;DAT tHIGH tSU;DAT tSU;STA tHD;STA tF tR tLOW tBUF tSU;STO P S Figure 18. Serial Bus Timing Diagram |
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