CA91L862A-50IEV

Specialized Overview

The CA91L862A-50IEV is a QSpan II PCI-to-Host processor bridge designed for embedded applications. It supports PowerQUICC (MPC8xx), QUICC (MC68360), and MC68040 processors, operating at speeds up to 50 MHz on the processor bus. The device provides 32-bit / 33 MHz PCI 2.2 support with universal signaling compliant with both 3.3V and 5V standards. Key specifications include a maximum power consumption of 0.9W, an operating temperature range from -40°C to 85°C, and a 256-pin PBGA package measuring 27.0 x 27.0 mm with a 1.27 mm pitch.

Specialized Feature Summary

• Integrated PCI bus arbiter supporting CompactPCI Hot Swap functionality
• High-performance DMA controller enabling Direct and Linked List modes
• Serial EEPROM interface facilitating Plug and Play compatibility on PCI
• Mailbox registers allowing parameter passing between host and embedded environments

Specialized Applications

• Embedded processor systems utilizing PowerQUICC or QUICC architectures
• CompactPCI Hot Swap compatible hardware designs
• Universal PCI signaling implementations requiring 3.3V and 5V compliance

Specialized Procurement Notes

Verify the specific ordering suffix against official IDT documentation to confirm package type and environmental rating. Confirm current availability status through authorized distributors as inventory levels fluctuate. Ensure the selected variant matches the required voltage signaling and thermal specifications for the target application environment.

Specialized Selection Notes

Select this component when interfacing MPC8xx, MC68360, or MC68040 processors with a 32-bit PCI bus. Ensure the design accommodates the 256-pin PBGA footprint and thermal requirements. Verify that the system architecture utilizes the supported DMA modes and mailbox registers for efficient data transfer between the host and embedded domains.

Specialized Part Context

The CA91L862A belongs to the QSpan II family of Enhanced Host Bridges developed by Integrated Device Technology. This series bridges legacy and embedded processors to standard PCI interfaces, providing essential arbitration and control logic for high-speed data communication in industrial and telecommunications equipment.

Specialized Replacement Considerations

Consult official IDT documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical parameters before replacing the component.