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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD5116 датащи(PDF) 21 Page - Analog Devices |
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AD5116 датащи(HTML) 21 Page - Analog Devices |
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21 / 28 page  Data Sheet AD5110/AD5112/AD5114 Rev. 0 | Page 21 of 28 WRITE OPERATION When writing to the AD5110/AD5112/AD5114, the user must begin with a start command followed by an address byte (R/W = 0), after which the AD5110/AD5112/AD5114 acknowledge that it is prepared to receive data by pulling SDA low. Two bytes of data are then written to the DAC, the most significant byte, followed by the least significant byte. Both of these data bytes are acknowledged by the AD5110/AD5112/ AD5114. A stop condition follows. The write operations for the AD5110/AD5112/AD5114 are shown in Figure 41, Figure 42, and Figure 43. A repeated write function gives the user flexibility to update the device a number of times after addressing the part only once, as shown in Figure 44. SCL SDA START BY MASTER ACK. BY AD5110 ACK. BY AD5110 FRAME 1 SERIAL BUS ADDRESS BYTE FRAME 2 MOST SIGNIFICANT DATA BYTE FRAME 3 LEAST SIGNIFICANT DATA BYTE SCL (CONTINUED) SDA (CONTINUED) ACK. BY AD5110 STOP BY MASTER 0 1 9 1 9 9 9 1 1 0 1 1 A1 A0 0 0 0 0 0 C2 C1 C0 D7 D6 D5 D4 D3 D2 D1 D0 R/W Figure 41. AD5110 Interface Write Command SCL SDA START BY MASTER ACK. BY AD5112 ACK. BY AD5112 FRAME 1 SERIAL BUS ADDRESS BYTE FRAME 2 MOST SIGNIFICANT DATA BYTE FRAME 3 LEAST SIGNIFICANT DATA BYTE SCL (CONTINUED) SDA (CONTINUED) ACK. BY AD5112 STOP BY MASTER 0 1 9 1 9 9 9 1 1 0 1 1 A1 A0 0 0 0 0 0 C2 C1 C0 D6 D5 D4 D3 D2 D1 D0 0 R/W Figure 42. AD5112 Interface Write Command |
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