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PCI-to-PCI Bridge, 2-Port

Product Description

The PI7C8152A and PI7C8152B (PI7C8152x) are Diodes' PCI-to-PCI Bridge that are designed to be fully compliant with the 32-bit, 66MHz implementation of the PCI Local Bus Specification, Revision 2.2. The PI7C8152B supports both synchronous and asynchronous bus transactions between devices on the Primary Bus and the Secondary Buses operating up to 66MHz. The PI7C8152A supports synchronous transactions only. In synchronous mode, both buses must operate at the same frequency. The Primary and Secondary Bus can also operate in concurrent mode, resulting in added increase in system performance. 


  • 32-bit Primary and Secondary Ports run up to 66MHz
  • Compliant with the PCI Local Bus Specification, Revision 2.2
  • Compliant with PCI-to-PCI Bridge Architecture Specification, Revision 1.1
    • All I/O and memory commands
    • Type 1 to Type 0 configuration conversion
    • Type 1 to Type 1 configuration forwarding
    • Type 1 configuration write to special cycle conversion
  • Compliant with the Advanced Configuration Power Interface (ACPI) Specification
  • Compliant with the PCI Power Management Specification, Revision 1.1.
  • Synchronous and Asynchronous operation support
    • Supported modes of Asynchronous operation (PI7C8152B ONLY)
      25MHz to 66MHz 25MHz to 66MHz
    • Supported modes of Synchronous operation
      66Mhz 66Mhz
      50Mhz 50Mhz
      33Mhz 33Mhz
      25Mhz 25Mhz
  • Provides internal arbitration for four secondary bus masters
    • Programmable 2-level priority arbiter 
    • Disable control for use of external arbiter 
  • Supports posted write buffers in all directions
  • Four 128 byte FIFO's for delay transactions 
  • Two 128 byte FIFO's for posted memory transactions
  • Enhanced address decoding 
  • 32-bit I/O address range 
  • 32-bit memory-mapped I/O address range 
  • 64-bit prefetchable address range 
  • ISA-aware mode for legacy support in the first 64KB of I/O address range 
  • Extended commercial temperature range 0°C to 85°C 
  • 3.3V core; 3.3V and 5V signaling 
  • 160-pin MQFP package 

Product Specifications

Product Parameters

PCI Speed 66
PCI Bus Width 32
Ports 2
Lanes N/A
Temperature 0 to 85

Technical Documents

Recommended Soldering Techniques
Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
Contact Sales
Request Samples
Qty. Carrier
PI7C8152AMAE Active MQFP-160 GREEN 24 TRAY Request Sample

Environmental Compliance Legend:
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free


Product Change Notices

PCN # Issue Date Subject
06-04 2006-06-29 This product has been transferred from wafer fab subcontractor Chartered Semiconductor Manufacturing Singapore’s (CSMS) Fab 1 (which closed operations in March 2004), to the previously approved CSMC-Tech, Wuxi, wafer fab in China.


Discontinued parts in this family

Obsolete Part # View PDN Package Comment Note
PI7C8152AMA PDN 08-0201 MA160 Contact Product Sales See other Connect products