TC74VHCT540AFTEL,IC BUFFER INVERT 5.5V 20TSSOP
TC74VHCT540AFW,IC INVERTER 8-INPUT 20SOL
TC74VHCT541AFT,
TC74VHCT541AFT(EL),IC BUFF/DVR TRI-ST 8BIT 20TSSOP
TC74VHCT541AFTEL,IC BUF NON-INVERT 5.5V 20TSSOP
TC74VHCT541AFW,IC BUFF/DVR TRI-ST 8BIT 20SOL
TC74VHCT573AFT(EL),IC LATCH OCTAL D-TYPE 20-TSSOP
TC74VHCT573AFTEL,闭锁 D-Type Octal Latch