PI5C3257LE Equivalent & Substitute Parts

Part Overview

The PI5C3257LE is a 4 x 2:1 Multiplexer/Demultiplexer logic IC manufactured by Diodes Incorporated in a 16-TSSOP surface mount package. This component is classified as Last Time Buy, indicating limited future availability. Equivalent and substitute parts are necessary to ensure design continuity, maintain supply chain flexibility, and support long-term production requirements.

Substiute Parts

PI5C3257LE

Diodes IncorporatedIn Stock: 1443PI5C3257LE Datasheet

Current PartRFQ

74FST3257DTR2G

onsemiIn Stock: 330374FST3257DTR2G Datasheet

MFR RecommendedRFQ

CBT3257APW,118

Nexperia USA Inc.In Stock: 3196CBT3257APW,118 Datasheet

MFR RecommendedRFQ

FST3257MTCX

onsemiIn Stock: 55297FST3257MTCX Datasheet

MFR RecommendedRFQ

SN74CBT3257CPW

Texas InstrumentsIn Stock: 2206SN74CBT3257CPW Datasheet

MFR RecommendedRFQ

SN74CBT3257CPWR

Texas InstrumentsIn Stock: 47791SN74CBT3257CPWR Datasheet

MFR RecommendedRFQ

SN74CBT3257PW

Texas InstrumentsIn Stock: 2324SN74CBT3257PW Datasheet

MFR RecommendedRFQ

SN74CBT3257PWR

Texas InstrumentsIn Stock: 2476SN74CBT3257PWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI5C3257LE is determined by the following critical parameters:

• Circuit Configuration: Must be 4 x 2:1 Multiplexer/Demultiplexer
• Package Type: Must be 16-TSSOP with 0.173" (4.40mm) width
• Mounting: Surface Mount only
• Supply Voltage Range: Must encompass or be compatible with 4.75V ~ 5.25V operation
• Operating Temperature: Must support -40°C ~ 85°C range
• Compliance: ROHS3 compliant, REACH unaffected

All substitute parts listed below meet these core electrical and mechanical requirements and are functionally equivalent for direct replacement in applications designed for the PI5C3257LE.

Parameter Comparison

Engineering Selection Recommendations

Active Product Status: CBT3257APW,118 (Nexperia), SN74CBT3257CPW (Texas Instruments), and SN74CBT3257CPWR (Texas Instruments) are currently in active production status, providing the longest-term availability and supply chain stability for new designs and ongoing production.

Last Time Buy Status: PI5C3257LE, 74FST3257DTR2G, SN74CBT3257PW, and SN74CBT3257PWR are designated Last Time Buy. These parts remain functionally equivalent but have limited future availability and should be considered for existing designs only.

Obsolete Status: FST3257MTCX is classified as obsolete and should be avoided for new applications, though it remains electrically compatible for legacy system maintenance.

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

Voltage Supply Compatibility: The PI5C3257LE operates within 4.75V ~ 5.25V. All substitute parts support this range within their broader supply voltage specifications, ensuring direct electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for PI5C3257LE?

A: Yes. All listed substitute parts share identical circuit configuration (4 x 2:1), package type (16-TSSOP), mounting method (surface mount), and operating temperature range (-40°C ~ 85°C). The PI5C3257LE supply voltage range (4.75V ~ 5.25V) is encompassed by all substitute parts' voltage specifications.

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

A: Tube packaging is suitable for lower-volume applications and manual assembly. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging are designed for automated pick-and-place assembly and higher-volume production. The electrical and functional performance is identical; packaging choice depends on assembly process requirements.

Q: Why is FST3257MTCX listed if it is obsolete?

A: FST3257MTCX is included for reference in legacy system maintenance scenarios. For new designs and ongoing production, active or Last Time Buy alternatives are preferred.

Q: Are there any voltage supply differences I should consider?

A: The PI5C3257LE specifies 4.75V ~ 5.25V. Substitute parts specify broader ranges (4V ~ 5.5V or 4.5V ~ 5.5V or 3V ~ 5.5V). All substitute parts fully support the PI5C3257LE operating voltage window. No design modifications are required.

Q: Which substitute should I select for new production?

A: CBT3257APW,118 (Nexperia) and SN74CBT3257CPWR (Texas Instruments) are recommended for new designs due to active product status and availability in automated assembly packaging formats.