74HCHCT240CNV2 From datasheet system
74HCHCT241CNV2 From datasheet system
74HCHCT243 Quad transceiver; 3-state
74HCHCT244 Octal buffer/line driver; 3-state
74HCHCT245 Octal transceiver; 3-state
74HCHCT2453 Octal transceiver; 3-state
74HCHCT245CNV2 Octal transceiver; 3-state