VT8365A

Product Details

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Single-Chip North Bridge for Socket-A (Socket-462) Based Athlon CPUs with 200 MHz Front Side Bus for Desktop PC Systems with AGP 4x and PCI plus Advanced Memory Controller supporting PC133 / PC100 SDRAM and VCM

OVERVIEW

The KT133 / VT8363 and VT82C686A chipset is a high performance, cost-effective and energy efficient system controller for the implementation of AGP / PCI / ISA desktop personal computer systems based on 64-bit Socket-A (AMD Athlon) processors.
The KT133 chip set consists of the VT8363 system controller (552 pin BGA) and the VT82C686A PCI to ISA bridge (352 pin BGA). The system controller provides superior performance between the CPU, DRAM, AGP bus, and PCI bus with pipelined, burst, and concurrent operation.
The VT8363 supports eight banks of DRAMs up to 1.5 GB. The DRAM controller supports standard Synchronous DRAM (SDRAM) and Virtual Channel SDRAM (VC SDRAM), in a flexible mix / match manner. The Synchronous DRAM interface allows zero wait state bursting between the DRAM and the data buffers at 66/100/133 MHz. The six banks of DRAM can be composed of an arbitrary mixture of 1M / 2M / 4M / 8M / 16M / 32MxN DRAMs.
The VT8363 system controller also supports full AGP v2.0 capability for maximum bus utilization including 1x, 2x and 4x mode transfers, SBA (SideBand Addressing), Flush/Fence commands, and pipelined grants. An eight level request queue plus a four level post-write request queue with thirty-two and sixteen quadwords of read and write data FIFO's respectively are included for deep pipelined and split AGP transactions. A single-level GART TLB with 16 full associative entries and flexible CPU / AGP / PCI remapping control is also provided for operation under protected mode operating environments. Both Windows-95 VXD and Windows-98 / Windows 2000 miniport drivers are supported for interoperability with major AGP-based 3D and DVD-capable multimedia accelerators.