有一些12V信号,需要输入至FPGA,可以用CD4504B转换成3.3V吗,看手册感觉可以。
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好老的片子。你可以看下SN65HVS885,直接将12V的输入数字化,后端SPI接口与PFGA相连
SN65HVS885的手册里写是5V供电 我用的FPGA是3.3V的I/O口 还得转换一次 现在的目的是尽量少用元器件
不能吧,CD4504的供电电压最小也是5V的,不能实现12V转3.3V。