PCI to ISA I/F

W83628AG is a PCI-to-ISA bus conversion IC. W83629AG is a condensed centralizer IC for IRQ and DMA control. W83628AG and W83629AG together form a complete set for the PCI-to-ISA Bridge.

For the new generation Intel chipsets Camino and Whitney which use the LPC bus, there is no support for ISA bus and slots. However the demand of ISA devices still exists. For such case, W83628AG plus W83629AG are the best companion solution for the non-ISA chipset. Also the packages of W83628AG (128-QFP) and W83629AG (48-LQFP) have been chosen to be the most economical solution for M/B board layout size and cost savings.

Part No. Interface Features Package type Status* RoHS
PCI to ISA Supports full ISA Bus Support including ISA Masters; Provides 5V ISA and 3.3V PCI interfaces; Supports 3 fully ISA Compatible Slots without Buffering and all ISA signal can be isolating; Supports Programmable ISA Bus Divide the PCI Bus Clock into 3 or 4; Supports Configuration registers for programming performance 128 Pin QFP P Y
PCI to ISA Supports full ISA Bus Support including ISA Masters; Provides 5V ISA and 3.3V PCI interfaces; PC/PCI DMA protocol for Software Transparent; IRQ Serializer for ISA Parallel IRQ transfer to Serial IRQ; Supports 3 fully ISA Compatible Slots without Buffering and all ISA signal can be isolating; Supports Programmable ISA Bus Divide the PCI Bus Clock into 3 or 4; Supports Configuration registers for programming performance 48 Pin
LQFP		 P Y
* Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

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