PI7C9X7952BFDEX-55 Equivalent & Substitute Parts

Part Overview

The PI7C9X7952BFDEX-55 is a PCI Bridge interface component manufactured by Diodes Incorporated, designed to facilitate PCI to UART communication. This 128-LQFP package device operates across dual voltage supplies (1.8V and 3.3V) and maintains an active product status with full RoHS3 compliance. Substitute parts become necessary when addressing inventory constraints, lead time requirements, or specific packaging preferences while maintaining functional and electrical equivalence.

Substiute Parts

PI7C9X7952BFDEX-55

Diodes IncorporatedIn Stock: 713PI7C9X7952BFDEX-55 Datasheet

Current PartRFQ

PI7C9X7954BFDEX

Diodes IncorporatedIn Stock: 2232PI7C9X7954BFDEX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI7C9X7952BFDEX-55 is determined by strict equivalence across the following critical parameters:

• Functional Equivalence: Both main and substitute parts must perform identical PCI to UART bridge functionality
• Protocol Compatibility: PCI protocol support is mandatory
• Electrical Specifications: Dual voltage supply (1.8V, 3.3V) and operating temperature range (-40°C ~ 85°C) must match exactly
• Package Compatibility: 128-LQFP (14x14) package format is required for mechanical and electrical pin compatibility
• Regulatory Compliance: RoHS3 and REACH compliance status must be maintained
• Manufacturer: Diodes Incorporated maintains consistent design specifications across the product line

The PI7C9X7954BFDEX qualifies as a parametric equivalent based on identical functional, electrical, and package specifications. Packaging format differences (Tape & Reel versus standard packaging) do not affect electrical or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The PI7C9X7954BFDEX is a direct functional and electrical equivalent to the PI7C9X7952BFDEX-55. Both components maintain active product status and full regulatory compliance (RoHS3 and REACH). Selection between these parts should be based on:

• Inventory Availability: PI7C9X7954BFDEX currently maintains higher stock levels (2122 Pcs vs. 669 Pcs)
• Packaging Requirements: PI7C9X7954BFDEX is supplied in Tape & Reel format, suitable for automated assembly processes
• Moisture Handling: PI7C9X7952BFDEX-55 features MSL 1 (unlimited shelf life), while PI7C9X7954BFDEX features MSL 3 (168-hour limit), requiring appropriate storage and handling protocols
• Lead Time Considerations: Higher inventory of PI7C9X7954BFDEX may provide shorter procurement cycles

Both parts are suitable for direct substitution in PCI to UART bridge applications without design modification.

Frequently Asked Questions (FAQ)

Q: Can PI7C9X7954BFDEX replace PI7C9X7952BFDEX-55 without PCB redesign?

A: Yes. Both components share identical package geometry (128-LQFP 14x14), pin configuration, electrical specifications, and functional characteristics. Direct substitution is possible without PCB modification.

Q: What is the significance of the MSL rating difference?

A: PI7C9X7952BFDEX-55 carries MSL 1 (unlimited moisture sensitivity level), allowing indefinite shelf storage under standard conditions. PI7C9X7954BFDEX carries MSL 3 (168-hour limit), requiring controlled storage environments and bake-out procedures if storage exceeds 168 hours. This affects supply chain handling but not electrical performance.

Q: Are both parts RoHS3 compliant?

A: Yes. Both PI7C9X7952BFDEX-55 and PI7C9X7954BFDEX maintain full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic components.

Q: What voltage levels do these components support?

A: Both components operate across dual supply voltages: 1.8V and 3.3V, with identical operating temperature ranges of -40°C to 85°C.

Q: Why is packaging format listed as different if both are 128-LQFP?

A: The 128-LQFP package format is identical for both parts. The difference refers to delivery format: PI7C9X7952BFDEX-55 uses standard packaging, while PI7C9X7954BFDEX is supplied in Tape & Reel (TR) format for automated assembly compatibility. This does not affect component functionality or pin compatibility.

Q: Are these components from the same manufacturer?

A: Yes. Both PI7C9X7952BFDEX-55 and PI7C9X7954BFDEX are manufactured by Diodes Incorporated, ensuring consistent design specifications and quality standards.