The Ricoh R5C522 is a highly integrated PCI-based controller primarily designed for managing various I/O functions in computer systems. It typically integrates functionalities like a card reader interface, IEEE 1394 (FireWire) controller, and sometimes other I/O interfaces. This integration minimizes the need for separate chips, reducing board space and cost.

Applications

• Desktop PCs
• Laptop computers
• Motherboards
• Expansion cards
• Digital video recorders (DVRs)

Features

• PCI interface for compatibility with standard computer systems.
• Integrated Card Reader Controller: Supports various memory card formats like SD, MMC, and MS.
• IEEE 1394 (FireWire) controller: Enables high-speed data transfer with external devices.
• DMA support for efficient data transfer.
• Low power consumption for energy efficiency.
• Advanced power management capabilities.
• Compliance with PCI specifications.

Benefits

• Reduces system cost by integrating multiple I/O functions into a single chip.
• Simplifies board design and reduces board space.
• Provides versatile I/O capabilities for connecting various external devices.
• High-speed data transfer via IEEE 1394 enhances performance.
• Low power consumption contributes to energy-efficient systems.
• Improved system reliability due to integrated design.

Additional Details

The R5C522 typically operates at 3.3V and offers a variety of configuration options via software. It provides robust error handling and data integrity features. The FireWire controller supports data transfer rates up to 400 Mbps. The operating temperature range is generally between 0°C and 70°C. It supports both 3.3V and 1.8V signaling for memory cards. The packaging includes a LQFP (Low-profile Quad Flat Package) or similar surface-mount package for easy integration onto printed circuit boards.

The integration of the card reader and FireWire functionalities makes it a cost-effective solution. It delivers great data transfer speeds.