PCI1225PDV

Controllers Overview

The PCI1225PDV is a high-performance PCI-to-PC Card controller manufactured by Texas Instruments. It supports two independent card sockets compliant with the 1997 PC Card Standard, accommodating both 16-bit PC Cards and 32-bit CardBus cards. The device operates at a maximum clock frequency of 33 MHz and utilizes a pipelined architecture to achieve throughput exceeding 130 MBps. It features a 3.3-V core logic with universal PCI interfaces compatible with both 3.3-V and 5-V signaling environments. The component is housed in a 208-pin Low-Profile Quad Flat Package (PDV) and supports hot insertion and removal.

Controllers Feature Summary

• Supports Distributed DMA (DDMA) and PC/PCI DMA for efficient data transfers on both PC Card sockets.
• Provides multiple system-interrupt signaling options including parallel PCI, parallel ISA, serialized ISA, and serialized PCI.
• Includes an advanced submicron, low-power CMOS process to minimize system power consumption while maintaining performance.
• Features register compatibility with the Intel 82365SL-DF ExCA controller for standardized configuration.

Controllers Applications

• Bridging between PCI buses and PC Cards in notebook computers
• Connecting PC Cards to PCI buses in desktop computers
• Implementing Zoomed Video (ZV) port applications

Controllers Procurement Notes

Verify that the specific PDV package variant matches the required pinout and mechanical dimensions for the target PCB layout. Confirm compliance with the PCI Local Bus Specification Revision 2.2 and the 1997 PC Card Standard during the design phase. Ensure proper handling procedures are followed due to the moisture sensitivity classification associated with this packaging type.

Controllers Selection Notes

Select the PCI1225PDV when a dual-socket solution supporting mixed 16-bit and CardBus formats is required. This component is suitable for designs needing hot-swappable capabilities without external buffering. Consider its compatibility with the Intel 430TX chipset if integrating into legacy mobile systems requiring specific bridge functionalities.

Controllers Part Context

This component belongs to the PCI1225 series of interface controllers designed by Texas Instruments. It serves as a bridge between the Peripheral Component Interconnect (PCI) bus and PC Card standards. The PDV suffix specifically denotes the 208-pin Low-Profile Quad Flat Package, distinguishing it from the GHK Ball Grid Array option within the same functional family.

Controllers Replacement Considerations

The PCI1225 is functionally register-compatible with the Intel 82365SL-DF controller. Designers migrating from or to other bridge controllers should verify pinout alignment and register mapping differences carefully to ensure seamless integration without extensive hardware redesign.