PI6C41204ALE Clock Fanout Buffer Equivalent & Substitute Parts

Part Overview

The PI6C41204ALE is a clock fanout buffer (distribution) multiplexer IC manufactured by Diodes Incorporated, designed for 2:4 clock distribution at 266 MHz. This device converts LVCMOS/LVTTL inputs to LVPECL outputs in a 20-TSSOP surface mount package. The part is currently obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.

Substiute Parts

PI6C41204ALE

Diodes IncorporatedIn Stock: 1391PI6C41204ALE Datasheet

Current PartRFQ

8535AG-01LFT

Renesas Electronics CorporationIn Stock: 15028535AG-01LFT Datasheet

MFR RecommendedRFQ

8535AGI-01LFT

Renesas Electronics CorporationIn Stock: 52818535AGI-01LFT Datasheet

MFR RecommendedRFQ

MC100ES6535EJ

Renesas Electronics CorporationIn Stock: 1224MC100ES6535EJ Datasheet

MFR RecommendedRFQ

MC100ES6535EJR2

Renesas Electronics CorporationIn Stock: 1075MC100ES6535EJR2 Datasheet

MFR RecommendedRFQ

8535AG-01LF

Renesas Electronics CorporationIn Stock: 43498535AG-01LF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PI6C41204ALE is determined by the following critical parameters:

• Input:Output Ratio: 2:4 configuration
• Package: 20-TSSOP form factor
• Input Logic Levels: LVCMOS/LVTTL compatibility
• Output Logic Level: LVPECL
• Frequency Performance: 266 MHz minimum
• Supply Voltage Range: 3.135V ~ 3.465V compatibility
• Surface Mount Compatibility: TSSOP package

Substitute parts are grouped into two categories:

Direct Equivalents (266 MHz): Parts maintaining identical frequency specifications and operating temperature ranges compatible with the original design.

Higher-Performance Alternatives (1 GHz): Parts with enhanced frequency capability that maintain all functional and package requirements, suitable for designs requiring additional performance margin.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Recommended for Pin-Compatible Replacement)

The Renesas 8535AG series parts (8535AG-01LFT, 8535AGI-01LFT, 8535AG-01LF) provide direct functional equivalence to the PI6C41204ALE. All three maintain 266 MHz frequency specifications, identical supply voltage ranges, and 20-TSSOP packaging. These parts are in active production status, ensuring long-term availability.

Selection between these three variants depends on packaging requirements: 8535AG-01LFT is supplied in Tape & Reel format, 8535AGI-01LFT in Cut Tape & Digi-Reel format, and 8535AG-01LF in standard packaging. The 8535AGI-01LFT variant extends operating temperature to -40°C ~ 85°C, providing broader environmental coverage while maintaining all other specifications.

Higher-Performance Alternatives (For Enhanced Frequency Margin)

The Renesas MC100ES6535 series (MC100ES6535EJ and MC100ES6535EJR2) offers 1 GHz maximum frequency operation, providing significant performance headroom beyond the original 266 MHz specification. Both variants maintain identical 2:4 configuration, LVCMOS/LVTTL input, and LVPECL output characteristics in 20-TSSOP packaging. These parts support extended operating temperature range (-40°C ~ 85°C) and are in active production. The MC100ES6535EJR2 variant includes tape and reel packaging designation.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use the MC100ES6535 series as a direct replacement for the PI6C41204ALE?

A: Yes. The MC100ES6535 series maintains all functional requirements: 2:4 input:output ratio, LVCMOS/LVTTL input to LVPECL output conversion, and 20-TSSOP surface mount packaging. The 1 GHz frequency capability exceeds the original 266 MHz specification, providing additional performance margin. Supply voltage compatibility (3.135V ~ 3.8V) encompasses the original range (3.135V ~ 3.465V).

Q: What is the difference between 8535AG-01LFT and 8535AGI-01LFT?

A: Both parts are functionally identical 266 MHz clock fanout buffers in 20-TSSOP packaging. The primary differences are packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and operating temperature range. The 8535AGI-01LFT supports -40°C ~ 85°C operation compared to 0°C ~ 70°C for the 8535AG-01LFT. Select based on your thermal environment and packaging handling requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original PI6C41204ALE regulatory requirements.

Q: What is the MSL (Moisture Sensitivity Level) difference between the 8535AG series and MC100ES6535 series?

A: The 8535AG series has MSL 1 (Unlimited moisture sensitivity protection), while the MC100ES6535 series has MSL 3 (168 hours maximum floor life). For applications with extended storage or high-humidity environments, the 8535AG series provides superior moisture tolerance. The MC100ES6535 series requires standard moisture control procedures during storage and handling.

Q: Can I use these parts interchangeably in my existing PCB design?

A: Yes, all substitute parts use identical 20-TSSOP pinout and package dimensions (0.173", 4.40mm width). No PCB layout modifications are required. Verify your design's frequency requirements and operating temperature range to select the appropriate substitute variant.