The SN75LBC978 is a nine-channel differential transceiver based on the 75LBC176 LinASICTM cell. Use of TI's LinBiCMOSTM process technology allows the power reduction necessary to integrate nine differential balanced transceivers. On-chip enabling logic makes this device applicable for the data path (eight data bits plus parity) and the control path (nine bits) for the Small Computer Systems Interface (SCSI) standard. The WRAP function allows in-circuit testing and wired-OR channels for the BSY, RST, and SEL signals of the SCSI bus.