Circuit phase clock generator driver digital series two seekic nine frequency oscillator 12v 8080a microprocessors includes lines crystal drive used 74c164 8 bit shift register work as a heart for car led light sequencer Adding digital i/o to your circuitpython compatible board: part 2
Adding Digital I/O To Your CircuitPython Compatible Board: Part 2 - The
Arduino shift bristolwatch rotary encoder controlling leds registers источник
74hc164 led driver download
74 series digital circuit of 74ls424 two-phase clock generator/driver .
.