Diodes Incorporated
Back to PCIe / PCI Bridges


Slimline PCIe-to-PCI Bridge

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Product Description

The PI7C9X112SL is the latest addition to the PCI Express Bridge SlimLine family of solutions. With the PI7C9X112SL, users can expect a x1 PCI Express to 32bit/66MHz PCI bridge with high performance, very low power consumption, and a small footprint. PI7C9X112SL offers the most effective forward bridging solution to platforms with high bandwidth requirement. The typical usage for this device is high volume applications requiring a “bridge” from legacy PCI products to new PCI Express based systems, or applications requiring a “bridge” to support multiple legacy PCI systems. The PI7C9X112SL is a versatile device that can be deployed in applications including desktops, graphics cards, combo cards, PC peripherals, MFP Printer and video surveillance systems.

Industry Specifications Compliance

  • PCI Express Base Specification, Rev. 1.1
  • PCI Express CEM Specification, Rev. 1.0a
  • PCI Express to PCI/PCI-X Bridge Specification, Rev. 1.0
  • PCI-to-PCI Bridge Architecture Specification, Rev. 1.2
  • PCI Local Bus Specification, Rev. 3.0
  • PCI Hot-Plug Specification, Rev. 1.1
  • PCI SHPC and Subsystem Specification, Rev. 1.0
  • PCI Mobile Design Guide, Version 1.1
  • System Management (SM) Bus, Version 2.0
  • PCI Bus PM Interface Specification, Rev. 1.1
  • Advanced Configuration and Power Interface Specification, Rev. 2.0 

General Feature Set

  • Fully PCIe 1.1 Compliant o Forward – PCI Express primary, PCI secondary
  • Maximum Payload Size – Up to 512 bytes
  • Ultra Low Power Modes
    • Critical for mobile applications
  • Support for up to 8 PCI Bus Masters with external 4 to 8 demux logic
  • Industrial Temp Compliant (-40C~+85C)
  • Two level internal arbitration
  • Typical Power: <460mW
  • GPIO Support - 4 dedicated bi-directional
  • When external arbiter is used:
    • 4 additional outputs
    • 4 additional inputs
  • Masquerade support
    • User defined vendor, device, revision, subsystem device, and subsystem vendor ID
  • Large 10KB Buffer
    • 4KB for upstream reads, 2KB for downstream reads & 2KB for writes per port
  • Access to Extended Configuration Registers From PCI side in Reverse Mode
  • Tiny 14 x 14mm, 128-pin QFP Package

PCI Express Features

  • Virtual Isochronous Support
    • Upstream TC 1 – 7 generation
    • Downstream TC 1 – 7 mapping
  • 16-bit CRC, LCRC (32-bit)
  • ECRC and Advanced Error Reporting
  • Error Forwarding (Data Poisoning)
  • Lane Reversal (Polarity Toggle)
  • VDDAUX Support (1.0V) 

PCI Features

  • 3.3V Signaling with 5V I/O Tolerance
  • PME# Support
  • 16-bit Address Decode for VGA
  • VAUX Support (3.3V)
  • Subsystem Device and Subsystem Vendor ID
  • MSI and INT Support
  • SM Bus
    • PHY, data link, network layer, PEC, ARP, etc.
  • I2C Serial EEPROM Support 

Product Specifications

Product Parameters

PCI Speed 66
PCI Bus Width 32
Ports 1 PCI
Lanes 1
Ambient or Junction Temperature (°C) -40 to 85

Technical Documents

Recommended Soldering Techniques


Additional Technical Documents are available upon request: 
Application information, Design tool model software, Design kits, Evaluation board, and Other technical documents

Request Documents


Related Protocol FAQs

Related Collection FAQs