PI5C3245LEX Equivalent & Substitute Parts

Part Overview

The PI5C3245LEX is an 8 x 1:1 bus switch logic IC manufactured by Diodes Incorporated in a 20-TSSOP surface mount package. This component is classified as Last Time Buy, indicating limited future availability. Bus switches of this configuration are essential for signal routing and multiplexing applications requiring low-impedance paths between multiple input and output channels. Equivalent and substitute parts are necessary to ensure design continuity and supply chain flexibility for applications currently using or specifying this component.

Substiute Parts

PI5C3245LEX

Diodes IncorporatedIn Stock: 1566PI5C3245LEX Datasheet

Current PartRFQ

SN74CBT3245APW

Texas InstrumentsIn Stock: 2236SN74CBT3245APW Datasheet

MFR RecommendedRFQ

SN74CBT3245APWR

Texas InstrumentsIn Stock: 6259SN74CBT3245APWR Datasheet

MFR RecommendedRFQ

SN74CBT3245CPW

Texas InstrumentsIn Stock: 2688SN74CBT3245CPW Datasheet

MFR RecommendedRFQ

SN74CBT3245CPWR

Texas InstrumentsIn Stock: 3070SN74CBT3245CPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PI5C3245LEX is determined by the following critical parameters:

• Circuit Configuration: 8 x 1:1 bus switch topology
• Package Type: 20-TSSOP form factor with 0.173" width (4.40mm)
• Voltage Supply Range: Single supply operation within compatible voltage windows
• Operating Temperature: -40°C to 85°C range
• Surface Mount Compatibility: Identical mounting technology
• Compliance: ROHS3 compliance and REACH unaffected status

The substitute parts listed below maintain functional equivalence through identical circuit topology, package geometry, and electrical operating ranges. Packaging format (Tube, Cut Tape, Tape & Reel) represents distribution method only and does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the PI5C3245LEX. Selection among substitutes should be based on the following factors:

Product Status Consideration: SN74CBT3245CPW and SN74CBT3245CPWR carry Active product status, indicating ongoing manufacturer support and extended availability. These parts are preferred for new designs and long-term supply assurance.

Packaging Format: Choose based on procurement and assembly requirements. Tube packaging (APW, CPW) suits lower-volume applications. Cut Tape (APWR, CPWR) and Digi-Reel formats support automated assembly lines.

Voltage Supply Margin: Texas Instruments parts (SN74CBT3245 series) operate across 4V ~ 5.5V, providing broader supply voltage tolerance compared to the PI5C3245LEX specification of 4.75V ~ 5.25V. This extended range offers additional design margin in applications with variable supply conditions.

Compliance: All parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SN74CBT3245 series parts directly replace PI5C3245LEX in existing designs?

A: Yes. All substitute parts share identical 8 x 1:1 bus switch topology, 20-TSSOP package geometry, and operating temperature range. Pin-for-pin compatibility is maintained across all listed substitutes.

Q: What is the significance of the voltage supply range difference (4.75V ~ 5.25V vs. 4V ~ 5.5V)?

A: The PI5C3245LEX operates within a narrower window centered on 5V nominal supply. Texas Instruments SN74CBT3245 variants accept a wider range (4V ~ 5.5V), providing greater tolerance for supply voltage variations. Both ranges are compatible with standard 5V logic systems.

Q: Does packaging format (Tube, Cut Tape, Digi-Reel) affect electrical performance?

A: No. Packaging format represents distribution and handling method only. Electrical specifications, performance characteristics, and pin configuration remain identical regardless of packaging format.

Q: Why are some parts listed as Last Time Buy while others are Active?

A: Product status reflects manufacturer lifecycle stage. Last Time Buy parts (PI5C3245LEX, SN74CBT3245APW, SN74CBT3245APWR) have limited future availability. Active parts (SN74CBT3245CPW, SN74CBT3245CPWR) continue in production with ongoing support. For new designs, Active parts are recommended.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts carry ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory standards.

Q: What determines whether a part qualifies as a substitute?

A: Substitution is based on matching circuit topology (8 x 1:1), identical package type (20-TSSOP), compatible voltage supply ranges, matching operating temperature specifications, and equivalent compliance certifications. All listed parts meet these criteria.