W83629AG

Specialized Overview

The W83629AG is a condensed centralizer IC for IRQ and DMA control, designed to work with the W83628AG PCI-to-ISA bridge. Together they form a complete solution for non-ISA chipsets featuring LPC bus interfaces. The device supports PC/PCI DMA protocol and serial IRQ transfer from parallel ISA channels. It operates within a commercial temperature range of 0°C to +70°C and utilizes a 48-pin LQFP package.

Specialized Feature Summary

• Supports serialized IRQ slave interface conforming to PCI system specifications
• Enables PC/PCI DMA serial channel passing protocol
• Converts legacy parallel ISA IRQ channels to serial format

Specialized Applications

• Companion solution for Intel chipsets lacking native ISA support
• LPC bus based motherboard designs requiring legacy compatibility
• PCI to ISA bridge systems utilizing W83628AG

Specialized Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as the unit uses a 48-LQFP configuration. Check datasheet revision history for any updates to DC characteristics or ordering information prior to integration into final hardware designs.

Specialized Selection Notes

Select this component when designing systems that require bridging modern LPC-based chipsets to legacy ISA peripherals. Ensure the design includes the W83628AG to handle the primary PCI-to-ISA translation. Verify power supply requirements match the specified 3.3V and 5V rails for proper operation of the handshaking and interface logic.

Specialized Part Context

This part belongs to the W83628/W83629 series published by Nuvoton Technology Corporation in January 2008. It serves as the specialized interrupt and DMA controller counterpart to the W83628AG bridge controller. The series addresses the market need for cost-effective legacy I/O support in newer platform architectures.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.