SN74ALS638AN
Manufacturers：
Texas Instruments
Description：
IC BUS TRANSCEIVER DUAL 20DIP
SN74ALS638ANSR
Manufacturers：
Texas Instruments
Description：
IC TXRX BUS OCTAL 20SO
Manufacturers：
Texas Instruments
Description：
IC BUS TRANSCEIVER DUAL 20DIP
Manufacturers：
Texas Instruments
Description：
IC TXRX BUS OCTAL 20SO