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AD5242BRU1M-REEL7 データシート(PDF) 6 Page - Analog Devices |
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AD5242BRU1M-REEL7 データシート(HTML) 6 Page - Analog Devices |
6 / 16 page REV. B AD5241/AD5242 –6– t8 t1 t8 t3 t2 t2 t9 t5 t10 S P t7 t4 S P SDA SCL t6 Figure 1. Detail Timing Diagram Data of AD5241/AD5242 is accepted from the I 2C bus in the following serial format: S0 1 0 11 AD1 AD0 R/ W A A/B RS SD O1 O2 XXX A D7 D6 D5 D4 D3D2 D1D0 A P SLAVE ADDRESS BYTE INSTRUCTION BYTE DATA BYTE where: S = Start Condition P = Stop Condition A = Acknowledge X = Don’t Care AD1, AD0 = Package pin programmable address bits. Must be matched with the logic states at Pins AD1 and AD0. R/ W = Read Enable at High and output to SDA. Write Enable at Low. A/B = RDAC subaddress select. ‘0’ for RDAC1 and ‘1’ for RDAC2. RS = Midscale reset, active high. SD = Shutdown in active high. Same as SHDN except inverse logic. O1, O2 = Output logic pin latched values. D7, D6, D5, D4, D3, D2, D1, D0 = Data Bits. 1 91 1 99 0 1 0 1 1AD1 AD0 R/ W A/B RS SD O1 O2 X X X D7 D6 D5 D4D3D2 D1 D0 ACK BY AD5241 ACK BY AD5241 ACK BY AD5241 STOP BY MASTER START BY MASTER FRAME 1 SLAVE ADDRESS BYTE FRAME 2 INSTRUCTION BYTE FRAME 3 DATA BYTE SCL SDA Figure 2. Writing to the RDAC Serial Register 1 91 9 0 1 0 1 1AD1 AD0 R/ W D7 D6 D5 D4 D3 D2 D1 D0 ACK BY AD5241 NO ACK BY MASTER STOP BY MASTER START BY MASTER FRAME 1 SLAVE ADDRESS BYTE FRAME 2 DATA BYTE FROM PREVIOUSLY SELECTED RDAC REGISTER IN WRITE MODE SCL SDA Figure 3. Reading Data from a Previously Selected RDAC Register in Write Mode |
同様の部品番号 - AD5242BRU1M-REEL7 |
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同様の説明 - AD5242BRU1M-REEL7 |
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