PI7C8152BMAE

Specialized Overview

The PI7C8152BMAE is a 2-port PCI-to-PCI bridge manufactured by Diodes Incorporated, housed in a 160-pin MQFP package. It supports 32-bit data buses with clock frequencies of 33MHz or 66MHz. The device complies with PCI Local Bus Specification Revision 2.2 and PCI-to-PCI Bridge Architecture Specification Revision 1.1. It features asynchronous mode support for primary and secondary ports running at different frequencies within the 25MHz to 66MHz range. The component operates on a 3.3V core voltage with 3.3V and 5V PCI I/O interfaces, functioning within an extended commercial temperature range of 0°C to 85°C.

Specialized Feature Summary

• Supports asynchronous bus transactions allowing primary and secondary ports to operate at different frequencies
• Provides internal arbitration for four secondary bus masters with programmable priority levels
• Includes posted write buffers and dedicated FIFOs for delay and memory transactions
• Features enhanced address decoding including VGA palette snooping and ISA-aware legacy support

Specialized Applications

• PCI bus expansion on motherboards to add additional slots or devices
• Enabling multiple devices on single PCI add-in cards
• System integration requiring concurrent primary and secondary port operation

Specialized Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS3 compliance status as indicated in official documentation. Check for end-of-life notices or product change notifications prior to procurement. Ensure storage conditions meet moisture sensitivity level requirements to prevent damage during assembly.

Specialized Selection Notes

Select this model when asynchronous operation between PCI bridges is required. The PI7C8152B variant differs from the A version by supporting mixed-frequency bus modes. Verify that the system design accommodates the 160-pin MQFP footprint. Ensure power supply rails match the specified 3.3V core and I/O interface requirements.

Specialized Part Context

This component belongs to the PI7C8152 family of PCI-to-PCI bridges originally developed by Pericom Semiconductor Corporation, now part of Diodes Incorporated. The series includes variants like the PI7C8152A which lacks asynchronous capabilities. These devices are designed to expand PCI bus loading capabilities beyond standard specification limits.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.