SN74LS393N
Manufacturers：
Texas Instruments
Description：
IC DUAL 4-BIT BINARY CNTR 14-DIP
SN74LS393NE4
Manufacturers：
Texas Instruments
Description：
IC COUNTER BINARY 14DIP
SN74LS393NSR
Manufacturers：
Texas Instruments
Description：
IC COUNTER BIN 4BIT DUAL 14SO