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ISPPAC20-01JI Datasheet(PDF) 7 Page - Lattice Semiconductor |
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ISPPAC20-01JI Datasheet(HTML) 7 Page - Lattice Semiconductor |
7 / 32 page Specifications ispPAC20 7 valid data tcsw tdacs tdach CS DAC D0-D7 Timing Specifications (SPI/Parallel Interface Modes), Continued CS TCK TDI TDO LSB MSB don’t care don’t care DI0 Represents previous data in shift register DI1 DI2 DI3 DI4 DI5 DI6 DI7 DO0 DO0 DO1 DO2 DO3 DO4 DO5 DO6 DO7 SS MISO MOSI SCK TCK TDI TDO CS +5V ENSPI ispPAC20 SPI MASTER DAC Parallel Input Timing Specifications SPI Connection Diagram SPI Data Transfer Notes 1. SPI data is loaded in TDI, LSB first. If TCK continues to clock after CS goes high, data will continue to be shifted through the shift register, even though the TDO pin is tristated after CS goes high. 2. DO0 –> DO7 represents “data out” from the SPI microprocessor or other digital source to the TDI input of the ispPAC20. 3. DI0 –> DI7 represents “data in” from the ispPAC20 TDO pin to the SPI microprocessor input or other digital source. 4. After the eighth clock, the LSB (DO0) is valid on TDO as long as CS is low. |
Similar Part No. - ISPPAC20-01JI |
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