M74HCT540B1R
M74HCT540M1R
M74HCT540RM13TR
M74HCT541B1
M74HCT541B1R
M74HCT541M1R
M74HCT541RM13TR
M74HCT541RM13TRSO
M74HCT573B1R
M74HCT573M1R
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