SN74ALS540N
Manufacturers：
Texas Instruments
Description：
IC INVERTER DUAL 8-INPUT 20DIP
SN74ALS540NSR
Manufacturers：
Texas Instruments
Description：
IC BUFF/DVR 3-ST OCTAL 20SO
SN74ALS540NSRG4
Manufacturers：
Texas Instruments
Description：
IC INVERTER DUAL 8-INPUT 20SO