M74HCT132TTR
M74HCT137B1R
M74HCT138B1R
M74HCT138M1R
M74HCT138RM13TR
M74HCT14B1R
M74HCT14M$S2
M74HCT14M1R
M74HCT14RM13TR
M74HCT14TTR
19129491949(手机优先