Other Parts Discussed in Thread: TLC5955
we'd like use SN74HC245 to extend the SPI communicating distance in LED display, and want to know that how long the distance SN74HC345 can handle.
customer use SPI interface to drive 7 pes cascading TLC5955 and the max distance is 1.5 metre. Can the SN74HC245 output drive 7 pes TLC5955 SCLK, GLCK, SDIN and LAT with 1.5 metre distance?
Meanwhile, is there any consideration about SPI communicating wires? which type wires is suitable for SPI? customer use Dupont wires now and SPI signals are very unstable.
could you help on it?