| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact |
QS74FCT574TQSC Datasheet
QS74FCT574TQSC Price
QS74FCT574TQSC on stock Limiting values definition - Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 1 34). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections ofthe specification is not implied. Exposu re to limiting values for extended periods may affect device reliability. ilog's 25380 SCSI (Small Computer System Interface) controller, is a 40-pin DIP or 44-pin PLCC CMOS device. It was designed to implement the SCSI protocol as defined by the ANSI X3T9.2 Committee, and is a plug-in replacement of the industry standard; the NMOS 5380. The 25380 is capable of operating both as a Target and an Initiator. This enables the 25380 to find its use in Bus Host Adapters, Formatters, and Host Port designs. Special high-current open-drain outputs enable it to directly interface to, and drive, the SCSI bus. These drivers are capable of sinking 48 mA at 0.5V. The 25380 has the necessary interface hook-ups so the system CPU can communicate with it, like with any other peripheral device. The CPU can read from, or write to the SCSI registers which may be addressed as standard or memory-mapped l/O's. The 25380 increases system performance by minimizing the CPU intervention in DMA operations which the 25380 controls. The CPU is interrupted by the 25380 when it detects a bus condition that requires attention. It also supports arbitration and |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
