M74HCT573B1R
M74HCT573M1R
M74HCT573RM13TR
M74HCT573TTR
M74HCT574B1R
M74HCT574M1R
M74HCT574RM13TR
M74HCT574TTR
M74HCT640B1R
M74HCT640RM13TR