PI6C20400SHE Equivalent & Substitute Parts

Part Overview

The PI6C20400SHE is a PCI Express (PCIe) clock buffer IC manufactured by Diodes Incorporated, designed to distribute a single 100MHz input clock signal to four differential outputs. This device operates as a 1:4 fanout buffer with LVTTL input and clock output capabilities, housed in a 28-SSOP surface mount package.

The PI6C20400SHE is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this clock distribution architecture.

Substiute Parts

PI6C20400SHE

Diodes IncorporatedIn Stock: 892PI6C20400SHE Datasheet

Current PartRFQ

9DB403DFLF

Renesas Electronics CorporationIn Stock: 11909DB403DFLF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PI6C20400SHE are identified based on the following critical parameters that determine functional and mechanical compatibility:

Mechanical Compatibility:

• Package type: 28-SSOP (0.209", 5.30mm Width)
• Mounting type: Surface Mount
• Pin count and footprint equivalence

Electrical Compatibility:

• Input:Output ratio: 1:4 (single input to four outputs)
• Differential input and output capability
• Supply voltage range: 3.135V ~ 3.465V
• Operating temperature range: 0°C ~ 70°C
• Primary application: PCI Express (PCIe) clock distribution

Regulatory & Compliance:

• RoHS3 compliance
• REACH unaffected status
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part 9DB403DFLF meets all mechanical and electrical compatibility requirements while offering enhanced performance specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 9DB403DFLF from Renesas Electronics Corporation is a direct substitute for the PI6C20400SHE. Both devices share identical mechanical packaging (28-SSOP), electrical supply requirements (3.135V ~ 3.465V), operating temperature range (0°C ~ 70°C), and functional architecture (1:4 differential clock distribution for PCIe applications).

The 9DB403DFLF maintains full RoHS3 compliance and REACH unaffected status, meeting all regulatory requirements of the original part. The substitute device is currently in active production status, ensuring long-term supply chain availability and support.

The 9DB403DFLF operates at a maximum frequency of 400MHz, which exceeds the 100MHz specification of the PI6C20400SHE. This enhanced performance capability provides additional operational margin and is fully backward compatible with designs specified for 100MHz operation.

Frequently Asked Questions (FAQ)

Q: Can the 9DB403DFLF be used as a direct replacement for the PI6C20400SHE in existing PCB designs?

A: Yes. Both devices use identical 28-SSOP packaging with the same physical footprint and pin configuration. No PCB modifications are required for mechanical or electrical integration.

Q: Are the supply voltage requirements identical between these parts?

A: Yes. Both the PI6C20400SHE and 9DB403DFLF operate within the same supply voltage range of 3.135V ~ 3.465V and share identical operating temperature specifications (0°C ~ 70°C).

Q: What is the significance of the 9DB403DFLF's 400MHz maximum frequency compared to the PI6C20400SHE's 100MHz specification?

A: The 9DB403DFLF's higher frequency rating provides additional performance headroom. Designs operating at or below 100MHz will function within the safe operating margins of the substitute part.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the PI6C20400SHE and 9DB403DFLF are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the primary advantage of selecting the 9DB403DFLF over the obsolete PI6C20400SHE?

A: The 9DB403DFLF is in active production status, ensuring reliable long-term availability and supply chain continuity. The PI6C20400SHE is obsolete and subject to supply constraints.

Q: Do both parts support the same 1:4 input-to-output ratio for PCIe clock distribution?

A: Yes. Both devices feature a 1:4 differential clock distribution architecture designed for PCI Express applications with identical input and output signal characteristics.