74LS153 dual 4 in multiplexer
74LS47 BCD to segment decoder
CD40110BE subtraction counting 16P
CH340G USB to serial TTL IC
HT8693SP mono audio amplifier integrated
KA2209 audio amplifier IC
LM393 low power voltage comparator IC
SN74LS139N straight plug DIP-16 logic circuit
SN74LS154N demultiplexer narrow body
SN74LS164N DIP 14P serial shift register
SN74LS247N TTL decoder from BCD to 7 segment
SN74LS48N 16pin decoder driver