PI6C48535-01LEX Equivalent & Substitute Parts

Part Overview

The PI6C48535-01LEX is a Clock Fanout Buffer (Distribution), Multiplexer IC manufactured by Diodes Incorporated. This 2:4 clock buffer operates at a maximum frequency of 500 MHz and is housed in a 20-TSSOP package. The part accepts LVCMOS, LVPECL, and LVTTL inputs and provides LVPECL outputs, making it suitable for high-speed clock distribution applications requiring signal fanout.

The PI6C48535-01LEX is classified as Obsolete. Locating equivalent or substitute parts is necessary for new designs, production continuity, and long-term component availability. The substitute parts listed below maintain functional compatibility while offering active product status and improved availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI6C48535-01LEX
Manufacturer	Diodes Incorporated
Type	Fanout Buffer (Distribution), Multiplexer
Ratio - Input:Output	2:4
Frequency - Max	500 MHz
Input Logic Levels	LVCMOS, LVPECL, LVTTL
Output Logic Levels	LVPECL
Voltage - Supply	3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the PI6C48535-01LEX is determined by the following critical parameters:

Input:Output Ratio (2:4)
Package Type (20-TSSOP)
Output Logic Level (LVPECL)
Mounting Type (Surface Mount)
RoHS3 Compliance

Substitute parts are grouped into two categories:

Parametric Equivalent (Full Compatibility): The PI6C48535-01BLIEX maintains identical electrical specifications, including 500 MHz maximum frequency, 3V ~ 3.6V supply voltage range, and -40°C ~ 85°C operating temperature. This part differs only in packaging format (Cut Tape vs. the original packaging).

Manufacturer Recommended Alternatives (Functional Compatibility with Derating): The Renesas Electronics Corporation 8535A series parts (8535AG-01LF, 8535AG-01LFT, 8535AGI-01LF, 8535AGI-01LFT) maintain the 2:4 ratio, LVPECL output, and 20-TSSOP package. These parts operate at a reduced maximum frequency of 266 MHz and have a narrower supply voltage range (3.135V ~ 3.465V). The 8535AGI variants support the full -40°C ~ 85°C temperature range, while 8535AG variants are limited to 0°C ~ 70°C.

Parameter Comparison

Parameter	PI6C48535-01LEX	PI6C48535-01BLIEX	8535AG-01LF	8535AG-01LFT	8535AGI-01LF	8535AGI-01LFT
Manufacturer	Diodes Incorporated	Diodes Incorporated	Renesas Electronics	Renesas Electronics	Renesas Electronics	Renesas Electronics
Ratio - Input:Output	2:4	2:4	2:4	2:4	2:4	2:4
Frequency - Max	500 MHz	500 MHz	266 MHz	266 MHz	266 MHz	266 MHz
Input Logic Levels	LVCMOS, LVPECL, LVTTL	LVCMOS, LVPECL, LVTTL	LVCMOS, LVTTL	LVCMOS, LVTTL	LVCMOS, LVTTL	LVCMOS, LVTTL
Output Logic Levels	LVPECL	LVPECL	LVPECL	LVPECL	LVPECL	LVPECL
Voltage - Supply	3V ~ 3.6V	3V ~ 3.6V	3.135V ~ 3.465V	3.135V ~ 3.465V	3.135V ~ 3.465V	3.135V ~ 3.465V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-TSSOP	20-TSSOP	20-TSSOP	20-TSSOP	20-TSSOP	20-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required):

The PI6C48535-01BLIEX is the primary substitute. It maintains all electrical specifications of the original PI6C48535-01LEX, including 500 MHz maximum frequency, 3V ~ 3.6V supply voltage, and -40°C ~ 85°C operating temperature range. The only difference is packaging format (Cut Tape). This part is Active and ROHS3 Compliant, ensuring long-term availability and regulatory compliance.

For Applications with Frequency Derating Tolerance:

The Renesas 8535A series parts are suitable when the application can operate at 266 MHz or lower. Selection within this series depends on temperature requirements and packaging preference:

8535AGI-01LF or 8535AGI-01LFT: Required for applications needing the full -40°C ~ 85°C temperature range. The AGI designation indicates industrial temperature rating. Choose 8535AGI-01LF for Tube packaging or 8535AGI-01LFT for Cut Tape & Digi-Reel packaging.
8535AG-01LF or 8535AG-01LFT: Suitable only for applications operating within 0°C ~ 70°C. These parts have reduced temperature range but are otherwise functionally equivalent to the AGI variants.

All substitute parts are ROHS3 Compliant and maintain the 2:4 fanout ratio and LVPECL output specification. The narrower supply voltage range (3.135V ~ 3.465V) of the Renesas parts requires verification against the application's power supply tolerance.

Frequently Asked Questions (FAQ)

Q: Can the PI6C48535-01BLIEX be used as a direct drop-in replacement for the PI6C48535-01LEX?

A: Yes. The PI6C48535-01BLIEX is a parametric equivalent with identical electrical specifications. The only difference is packaging format (Cut Tape vs. the original format). Both parts operate at 500 MHz, support the same input/output logic levels, and share the same supply voltage and temperature range.

Q: What is the main limitation of the Renesas 8535A series substitutes?

A: The maximum operating frequency is reduced to 266 MHz compared to the 500 MHz of the original part. Additionally, the supply voltage range is narrower (3.135V ~ 3.465V vs. 3V ~ 3.6V). These parts are suitable only for applications operating at or below 266 MHz with power supplies within the specified voltage window.

Q: Why do the Renesas 8535AG and 8535AGI parts have different temperature ranges?

A: The 8535AGI designation indicates industrial-grade temperature rating (-40°C ~ 85°C), while 8535AG parts are commercial-grade (0°C ~ 70°C). For applications requiring extended temperature operation, the 8535AGI variants must be selected.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the 20-TSSOP (0.173", 4.40mm Width) package, ensuring mechanical compatibility. However, packaging formats differ: Cut Tape, Tape & Reel, and Tube options are available depending on the specific part number.

Q: What is the significance of the packaging suffix (LF, LFT)?

A: The suffix indicates the shipping/packaging format. LF typically denotes Tube or standard packaging, while LFT denotes Tape & Reel or Cut Tape & Digi-Reel formats. The electrical specifications remain identical regardless of packaging format.

Q: Are all substitute parts RoHS3 Compliant?

A: Yes. All listed substitute parts, including the PI6C48535-01BLIEX and all Renesas 8535A variants, are ROHS3 Compliant, meeting environmental and regulatory requirements.

Q: Can I use an 8535AG part in an application requiring -40°C operation?

A: No. The 8535AG variants are rated only to 0°C minimum. For applications requiring -40°C operation, the 8535AGI variants must be used.

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