(China (Mainland))
Product Summary
The SIS648 is a highly integrated system I/O that constitutes a high performance, rich featured, yet glueless solution for both Pentium and Pentium II systems. The SIS648 PCI system I/O integrates the PCI-to-ISA bridge with the DDMA and PC/PCI DMA, Serial IRQ capability, the ACPI/Legacy PMU, the Data Acquisition Interface, the Universal Serial Bus host/hub interface, and the ISA bus interface, which contains the ISA bus controller, the DMA controllers, the interrupt controllers, and the Timers. It also integrates the Keyboard controller, and the Real Time Clock (RTC).
Parametrics
SIS648 absolute maximum ratings: (1)Ambient operating temperature 0 to 70°C; (2)Storage temperature -40 to 125°C; (3)Input voltage: -0.3 to 5.5 V; (4)Output voltage: -0.5 to 5.5 V.
Features
SIS648 features: (1)Translates PCI Bus Cycles into ISA Bus Cycles; (2)Translates ISA Master or DMA Cycles into PCI Bus Cycles; (3)Provides a Dword Post Buffer for PCI to ISA Memory cycles; (4)Meets ACPI 10 Requirements; (5)Supports Both ACPI and Legacy PMU; (6)Supports Suspend to RAM; (7)Supports Suspend to Hard Disk; (8)Optionally Tri-state ISA bus in low power state; (9)System Timer Interrupt; (10)Generate Refresh Request; (11)Speaker Tone Output; (12)Provide the Readability of the 8254 Associated Registers.
Diagrams
