74ACTQ646 From datasheet system
74ACTQ646ASPC Single 8-bit Bus Transceiver
74ACTQ646CW Quiet Series Octal Transceiver/Register with 3-STATE Outputs
74ACTQ646SC Quiet Series? Octal Transceiver/Register with 3-STATE Outputs
74ACTQ646SCQR Single 8-bit Bus Transceiver
74ACTQ646SCX Single 8-bit Bus Transceiver
74ACTQ646SPC Single 8-bit Bus Transceiver
74ACTQ646SPCQR Single 8-bit Bus Transceiver
74ACTQ652 Quiet Series? Transceiver/Register
74ACTQ652CW Quiet Series Transceiver/Register
74ACTQ652MTC Quiet Series? Transceiver/Register
74ACTQ652MTCX Single 8-bit Bus Transceiver
74ACTQ652SC Quiet Series? Transceiver/Register
74ACTQ652SCX Single 8-bit Bus Transceiver
74ACTQ652SPC Quiet Series Transceiver/Register