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PI6C557-06LE Equivalent & Substitute Parts
Part Overview
The PI6C557-06LE is an active PCI Express (PCIe) clock generator manufactured by Diodes Incorporated, designed to distribute a single 200MHz differential HCSL input signal to four differential HCSL outputs. The device operates within a 3.135V to 3.465V supply voltage range and is housed in a 20-TSSOP surface mount package. Currently in active product status with 911 units in stock, this component serves as a critical timing distribution element in PCIe-based systems. Substitute parts are identified when the main part becomes unavailable, reaches end-of-life, or when design requirements necessitate alternative sourcing options.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | PI6C557-06LE |
| Manufacturer | Diodes Incorporated |
| Category | Clock/Timing |
| Description | IC CLOCK GENERATOR 20-TSSOP |
| Main Purpose | PCI Express (PCIe) |
| Input Signal Type | HCSL (Differential) |
| Output Signal Type | HCSL (Differential) |
| Input:Output Ratio | 2:4 |
| Frequency - Maximum | 200MHz |
| Supply Voltage Range | 3.135V ~ 3.465V |
| Operating Temperature Range | 0°C ~ 70°C |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the PI6C557-06LE is determined by strict alignment of the following critical parameters:
- Input signal type: HCSL differential
- Output signal type: HCSL differential (or HCSL with additional output options)
- Input:Output ratio: 2:4
- Maximum frequency: 200MHz or greater
- Supply voltage range: 3.135V ~ 3.465V (compatible overlap required)
- Operating temperature range: 0°C ~ 70°C (compatible overlap required)
- Package / Case: 20-TSSOP form factor
- Mounting type: Surface Mount
- RoHS and REACH compliance status
The substitute part 5V41067APGG meets all electrical and mechanical substitution criteria. Compliance certifications (ROHS3, REACH Unaffected, EAR99 ECCN) are identical to the main part.
Parameter Comparison
| Parameter | PI6C557-06LE (Diodes) | 5V41067APGG (Renesas) | Match Status |
|---|---|---|---|
| Input Signal Type | HCSL (Differential) | HCSL (Differential) | Match |
| Output Signal Type | HCSL (Differential) | HCSL, LVDS (Differential) | Compatible |
| Input:Output Ratio | 2:4 | 2:4 | Match |
| Frequency - Maximum | 200MHz | 200MHz | Match |
| Supply Voltage Range | 3.135V ~ 3.465V | 3.135V ~ 3.465V | Match |
| Operating Temperature Range | 0°C ~ 70°C | 0°C ~ 70°C | Match |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | Match |
| Mounting Type | Surface Mount | Surface Mount | Match |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Match |
| REACH Status | REACH Unaffected | REACH Unaffected | Match |
| Product Status | Active | Obsolete | Different |
Engineering Selection Recommendations
The 5V41067APGG from Renesas Electronics Corporation is a qualified substitute for the PI6C557-06LE. Both parts satisfy identical electrical specifications, mechanical packaging requirements, and regulatory compliance standards (ROHS3, REACH Unaffected, EAR99 ECCN classification).
The primary distinction is product lifecycle status: the PI6C557-06LE maintains active production status, while the 5V41067APGG is classified as obsolete. Selection between these parts should be based on availability requirements and supply chain strategy. The PI6C557-06LE is recommended for new designs and long-term production commitments. The 5V41067APGG is suitable for legacy system maintenance, repair operations, or situations where existing inventory must be utilized.
Both parts are pin-compatible within the 20-TSSOP package and require identical PCB layout considerations. No design modifications are necessary when transitioning between these parts.
Frequently Asked Questions (FAQ)
Q: Can the 5V41067APGG directly replace the PI6C557-06LE on an existing PCB?
A: Yes. Both parts use the 20-TSSOP package with identical pinout and electrical specifications. No PCB modifications are required for direct substitution.
Q: What is the significance of the "Obsolete" product status for the 5V41067APGG?
A: Obsolete status indicates that Renesas Electronics Corporation has discontinued production of this part. While existing inventory may be available through authorized distributors, long-term availability cannot be guaranteed. For new designs, the active PI6C557-06LE is the preferred choice.
Q: Are the supply voltage and operating temperature ranges identical?
A: Yes. Both parts operate within 3.135V to 3.465V supply voltage and 0°C to 70°C temperature ranges. System designs using either part require identical power supply and thermal management specifications.
Q: Does the 5V41067APGG support additional output signal types?
A: The 5V41067APGG supports both HCSL and LVDS output configurations, while the PI6C557-06LE is specified for HCSL output only. In PCIe applications requiring HCSL output, both parts are functionally equivalent. The additional LVDS capability of the 5V41067APGG does not affect HCSL-based system compatibility.
Q: What compliance certifications apply to both parts?
A: Both the PI6C557-06LE and 5V41067APGG are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. No additional compliance documentation is required when substituting between these parts.
Q: Is the 2:4 input-to-output ratio maintained in both parts?
A: Yes. Both parts accept a single 2-line differential HCSL input and distribute it to four differential output pairs, maintaining the 2:4 ratio specification.
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