PI5C3253LEX Equivalent & Substitute Parts

Part Overview

The PI5C3253LEX is a 2 x 4:1 Multiplexer/Demultiplexer logic IC manufactured by Diodes Incorporated in a 16-TSSOP surface mount package. This component operates on single supply voltage and is designed for signal routing and switching applications in digital systems. The part is currently in Last Time Buy status, making identification of equivalent alternatives essential for ongoing design support and procurement planning.

Key Parameters

Parameter	Value
Type	Multiplexer/Demultiplexer
Circuit Configuration	2 x 4:1
Package Type	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Voltage Supply	4.75V ~ 5.25V
Operating Temperature Range	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the PI5C3253LEX are qualified based on the following criteria:

Functional Equivalence: All substitute parts maintain the same 2 x 4:1 multiplexer/demultiplexer circuit configuration with identical pin count and package footprint (16-TSSOP).

Package Compatibility: All substitutes use the 16-TSSOP package with 0.173" width and 4.40mm dimensions, ensuring PCB layout compatibility without redesign.

Electrical Parameters: Substitute parts operate within compatible voltage supply ranges (4.5V ~ 5.5V for Texas Instruments and Nexperia parts, compared to 4.75V ~ 5.25V for the main part), with identical operating temperature range (-40°C ~ 85°C).

Compliance Standards: All substitutes maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, matching the environmental and regulatory requirements of the original part.

Supply Source: Single supply voltage operation is maintained across all alternatives.

Parameter Comparison

Parameter	PI5C3253LEX (Diodes)	CBT3253APW,118 (Nexperia)	SN74CBT3253CPW (TI)	SN74CBT3253CPWR (TI)	SN74CBT3253PW (TI)
Manufacturer	Diodes Incorporated	Nexperia USA Inc.	Texas Instruments	Texas Instruments	Texas Instruments
Circuit Type	2 x 4:1 Mux/Demux	2 x 4:1 Mux/Demux	2 x 4:1 Mux/Demux	2 x 4:1 Mux/Demux	2 x 4:1 Mux/Demux
Package	16-TSSOP	16-TSSOP	16-TSSOP	16-TSSOP	16-TSSOP
Voltage Supply Range	4.75V ~ 5.25V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Last Time Buy	Active	Active	Active	Last Time Buy
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Tube	Cut Tape & Digi-Reel	Tube

Engineering Selection Recommendations

Active Product Status: The CBT3253APW,118 (Nexperia) and SN74CBT3253CPWR (Texas Instruments) are both in Active product status, providing long-term availability and manufacturing support. These are the preferred selections for new designs and long-term procurement strategies.

Last Time Buy Considerations: Both the PI5C3253LEX and SN74CBT3253PW are in Last Time Buy status. Designs currently using the PI5C3253LEX should transition to an Active alternative to ensure supply continuity beyond the Last Time Buy window.

Compliance and Certification: All substitute parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL Level 1 ratings, ensuring regulatory and environmental compatibility with the original specification.

Voltage Supply Margin: Substitute parts from Texas Instruments and Nexperia offer a wider voltage supply range (4.5V ~ 5.5V) compared to the PI5C3253LEX (4.75V ~ 5.25V), providing additional design margin in systems with variable supply voltages.

Packaging and Procurement: Select based on packaging format requirements. Tape & Reel format (CBT3253APW,118) suits high-volume automated assembly. Cut Tape & Digi-Reel (SN74CBT3253CPWR) accommodates mixed-volume production. Tube packaging (SN74CBT3253CPW, SN74CBT3253PW) is suitable for lower-volume or manual assembly operations.

Frequently Asked Questions (FAQ)

Q: Can I directly replace PI5C3253LEX with any of these substitute parts?

A: Yes. All substitute parts share identical 2 x 4:1 circuit configuration, 16-TSSOP package footprint, and electrical operating parameters. Direct pin-for-pin substitution is supported without PCB redesign.

Q: What is the difference between the Texas Instruments substitutes?

A: The primary differences are packaging format and product status. SN74CBT3253CPWR (Cut Tape & Digi-Reel, Active) and SN74CBT3253CPW (Tube, Last Time Buy) are functionally identical. SN74CBT3253CPWR is recommended for new designs due to Active status.

Q: Why do substitute parts have a wider voltage supply range?

A: The substitute parts (4.5V ~ 5.5V) from Texas Instruments and Nexperia are designed with broader supply tolerance specifications compared to the PI5C3253LEX (4.75V ~ 5.25V). Both ranges are compatible with standard 5V logic supply systems.

Q: Are there any temperature or environmental differences?

A: No. All parts maintain identical -40°C ~ 85°C operating temperature range, MSL Level 1 moisture sensitivity rating, and ROHS3/REACH compliance status.

Q: Which substitute should I choose for a new design?

A: CBT3253APW,118 (Nexperia) or SN74CBT3253CPWR (Texas Instruments) are both Active products with long-term availability. Choose based on your preferred supplier relationship and packaging requirements for your manufacturing process.

Q: Is the PI5C3253LEX still available?

A: The PI5C3253LEX is in Last Time Buy status, indicating limited remaining inventory. Transition to an Active alternative for designs requiring extended production timelines.

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