PCI1451AGJG

Controllers Overview

The Texas Instruments PCI1451A is a high-performance PC Card controller featuring a 32-bit PCI interface. It supports two independent PC Card sockets compliant with the PC Card Standard and the PCI-to-CardBus Bridge Specification. The device accommodates any combination of 16-bit and CardBus PC Cards, powered at 5 Vdc or 3.3 Vdc as required. Compliant with the PCI Bus Power Management Interface Specification and the PCI Local Bus Specification, its PCI interface functions as either a master or slave device. Internal signal buffering enables hot insertion and removal capabilities.

Controllers Feature Summary

• Supports two independent PC Card sockets for simultaneous operation
• Enables hot insertion and removal through internal signal buffering
• Provides distributed DMA (DDMA) registers for efficient data transfers
• Integrates programmable interrupt subsystem with configurable masks and flags

Controllers Applications

• Bridging between PCI bus and PC Cards in notebook computers
• Bridging between PCI bus and PC Cards in desktop computers
• Implementing CardBus PC Card power management systems

Controllers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Confirm that the component matches the exact datasheet revision referenced in your design specifications. Ensure compatibility with existing system voltage requirements before procurement.

Controllers Selection Notes

Select this controller when designing systems requiring dual independent PC Card socket support. It is suitable for applications needing full 32-bit data transfer capabilities at standard PCI frequencies. Consider its register compatibility with legacy Intel controllers if migrating from older designs.

Controllers Part Context

This component belongs to the PCI1451A series of PC Card controllers manufactured by Texas Instruments. It serves as a bridge between the PCI bus and various PC Card standards, including both legacy 16-bit cards and newer 32-bit CardBus implementations.

Controllers Replacement Considerations

The device is register compatible with the Intel 82365SL-DF ExCA controller. Verify pinout and register mapping equivalence before substituting.