M74HCT640B1R
Manufacturers：
ST
Description：
IC TRANSCVR TRI-ST 8BIT 20DIP
M74HCT640RM13TR
Manufacturers：
ST
Description：
IC TRANSCEIVER 3-ST 8BIT 20SOIC
M74HCT646RM13TR
Manufacturers：
ST
Description：
IC TRANSCVR TRI-ST 8BIT 24SOIC
M74HCT652B1R
Manufacturers：
ST
Description：
IC TRANSCVR 8BIT N-INV 24DIP
M74HCT652RM13TR
Manufacturers：
ST
Description：
IC TRANSCVR 8BIT NON-INV 24SOIC
M74HCT688B1R
Manufacturers：
ST
Description：
IC COMPARATOR EQUALITY 8B 20DIP
M74HCT688RM13TR
Manufacturers：
ST
Description：
IC COMPARATOR EQUALITY 8B 20SOIC