HELLO,
We need use FPGA(XILINX SPATAN6) to configure 5 LMX2595 chips at the same time through SPI way; Because the configuration parameters of 5 chips are the same and reduce FPGA pin usage, we plan to use only 3 pins of FPGA to connect 5 LMX2595 chips of there corresponding pins (SLK, SDI, CSB). The maximum output current of FPGA pin is about 10mA. Is it feasible to drive 5-way with one line? If it is not feasible, is there a corresponding driver chip with more than 1 point to meet such a design? Thank you very much