The Fujitsu MB86604L is a single-ended transmission type SCSI-II Protocol Controller (SPC) with a single-ended driver/receiver. The MB86604L facilitates interface control between small/medium host computer and peripheral devices (such as a hard disk and printer). The specifications conform to the SCSI-II Standard. The MB86604L supports high-speed synchronous transfer, the MPU/DMA independent system data bus, and user programmable command set to enable configuration of high-performance systems. It can also have the phase-to-phase sequence control function to reduce the program overhead of the host MPU. The MB86604L incorporate with a single-ended type SCSI driver/receiver which can drive 48 mA of large-current, and so, the device can be directly connected with the SCSI bus. The device can operate with +5 V single-power supply and in up to 40 MHz clock frequency. As for package, a 100-pin plastic small quad flat package is available.