PI5C3305LEX Bus Switch Equivalent & Substitute Parts

Part Overview

The PI5C3305LEX is a 1 x 1:1 bus switch logic IC manufactured by Diodes Incorporated in 8-TSSOP surface mount packaging. This component functions as a single-pole, single-throw switch for digital signal routing applications. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying qualified substitute parts ensures design continuity and supply chain reliability for applications requiring this bus switch functionality.

Substiute Parts

PI5C3305LEX

Diodes IncorporatedIn Stock: 7453PI5C3305LEX Datasheet

Current PartRFQ

SN74CBT3305CPW

Texas InstrumentsIn Stock: 2648SN74CBT3305CPW Datasheet

MFR RecommendedRFQ

SN74CBT3305CPWR

Texas InstrumentsIn Stock: 3310SN74CBT3305CPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI5C3305LEX is determined by strict equivalence across the following critical parameters:

Circuit topology and configuration (1 x 1:1 bus switch with 2 independent circuits) must remain identical. Package type must be 8-TSSOP surface mount to ensure PCB compatibility without layout redesign. Voltage supply range must encompass or match the original specification (4V ~ 5.5V). Operating temperature range must cover -40°C ~ 85°C minimum. RoHS3 compliance and MSL 1 rating must be maintained for manufacturing and environmental requirements.

The substitute parts SN74CBT3305CPW and SN74CBT3305CPWR, both manufactured by Texas Instruments, meet these criteria. Both are Active status products with identical circuit topology, package geometry, and compliance certifications. The primary difference between substitutes is packaging format: SN74CBT3305CPW is supplied in Tube packaging, while SN74CBT3305CPWR is supplied in Tape & Reel format.

Parameter Comparison

Engineering Selection Recommendations

Both Texas Instruments substitutes are qualified alternatives to the PI5C3305LEX. The SN74CBT3305CPWR is the preferred substitute when Tape & Reel packaging is required for automated assembly processes, maintaining identical packaging format to the original part. The SN74CBT3305CPW serves applications where Tube packaging is acceptable.

Both substitutes carry Active product status, ensuring long-term availability and continued manufacturer support, contrasting with the Last Time Buy status of the original PI5C3305LEX. All three parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements.

The voltage supply range of the Texas Instruments substitutes (4.5V ~ 5.5V) is slightly narrower than the original part (4V ~ 5.5V). Applications operating at supply voltages below 4.5V require confirmation that the original PI5C3305LEX specification is necessary; otherwise, the substitutes are fully compatible.

Frequently Asked Questions (FAQ)

Q: Can SN74CBT3305CPW and SN74CBT3305CPWR be used interchangeably with PI5C3305LEX?

A: Yes, both Texas Instruments parts are functionally equivalent. The circuit topology, package geometry, and electrical specifications are identical. The primary difference is packaging format: SN74CBT3305CPWR uses Tape & Reel, while SN74CBT3305CPW uses Tube. Select based on your assembly process requirements.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel packaging is optimized for high-volume automated assembly using pick-and-place equipment. Tube packaging is suitable for lower-volume manual assembly or component storage. Both formats contain the same component in identical 8-TSSOP packages.

Q: Does the voltage supply range difference affect compatibility?

A: The substitutes specify 4.5V ~ 5.5V versus the original 4V ~ 5.5V. If your application operates at supply voltages between 4V and 4.5V, the original PI5C3305LEX specification is required. For applications at 4.5V and above, the substitutes are fully compatible.

Q: Why is the original PI5C3305LEX marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing production. Diodes Incorporated will fulfill existing orders until a specified cutoff date, after which the part becomes unavailable. Transitioning to Active alternatives ensures long-term supply chain continuity.

Q: Are all three parts RoHS3 compliant?

A: Yes. PI5C3305LEX, SN74CBT3305CPW, and SN74CBT3305CPWR are all ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and manufacturing standards.

Q: Can I mix packaging formats in the same production run?

A: Yes, both packaging formats contain identical components. However, using a single packaging format simplifies inventory management and assembly process standardization.