PI3B3253Q Equivalent & Substitute Parts

Part Overview

The PI3B3253Q is a 2 x 4:1 Multiplexer/Demultiplexer logic IC manufactured by Diodes Incorporated in a 16-QSOP surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The device operates on single supply voltage between 3V and 3.6V with an operating temperature range of -40°C to 85°C. Identifying compatible alternatives ensures design continuity and supply chain flexibility.

Substiute Parts

PI3B3253Q

Diodes IncorporatedIn Stock: 1312PI3B3253Q Datasheet

Current PartRFQ

PI3B3253QE

Diodes IncorporatedIn Stock: 8621PI3B3253QE Datasheet

DirectRFQ

74CBTLV3253QG

IDT, Integrated Device Technology IncIn Stock: 259374CBTLV3253QG Datasheet

MFR RecommendedRFQ

74CBTLV3253QG8

Renesas Electronics CorporationIn Stock: 1758274CBTLV3253QG8 Datasheet

MFR RecommendedRFQ

SN74CB3Q3253DBQR

Texas InstrumentsIn Stock: 3783SN74CB3Q3253DBQR Datasheet

MFR RecommendedRFQ

SN74CBTLV3253DBQR

Texas InstrumentsIn Stock: 32822SN74CBTLV3253DBQR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI3B3253Q is determined by the following parameters:

• Circuit configuration: 2 x 4:1 multiplexer/demultiplexer topology
• Package type: 16-SSOP surface mount package with 0.154" width (3.90mm)
• Operating temperature range: -40°C to 85°C minimum
• Voltage supply compatibility: Parts must operate within or encompass the 3V to 3.6V range
• Mounting type: Surface mount only

All identified substitutes maintain identical circuit functionality and package footprint compatibility. Voltage supply ranges may extend beyond the original specification, provided the minimum operating voltage does not exceed 3.6V and maximum does not fall below 3V.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production applications, PI3B3253QE is the direct equivalent from the original manufacturer Diodes Incorporated. This part maintains identical electrical specifications and package footprint while offering active product status and ROHS3 compliance.

For designs requiring extended voltage supply range (2.3V minimum), the 74CBTLV3253QG8 from Renesas Electronics or SN74CBTLV3253DBQR from Texas Instruments provide active alternatives with ROHS3 compliance and higher inventory availability. Both parts support the original 3V to 3.6V operating window while extending lower voltage capability.

The SN74CB3Q3253DBQR from Texas Instruments offers an alternative topology within the same functional class, maintaining 2 x 4:1 multiplexer/demultiplexer operation and 16-SSOP packaging with ROHS3 compliance and active product status.

All recommended substitutes are currently in active production status, ensuring long-term supply chain stability compared to the obsolete PI3B3253Q.

Frequently Asked Questions (FAQ)

Q: Can PI3B3253QE be used as a direct replacement for PI3B3253Q?

A: Yes. PI3B3253QE maintains identical circuit configuration (2 x 4:1), package type (16-SSOP), voltage supply range (3V ~ 3.6V), and operating temperature range (-40°C ~ 85°C). The primary differences are active product status and ROHS3 compliance.

Q: What is the difference between 74CBTLV3253QG and 74CBTLV3253QG8?

A: Both parts share identical electrical specifications and 16-SSOP packaging. The primary difference is manufacturer: 74CBTLV3253QG is from IDT, while 74CBTLV3253QG8 is from Renesas Electronics. The "8" suffix indicates the Renesas variant. Both support 2.3V ~ 3.6V supply voltage.

Q: Are all substitutes compatible with 3V to 3.6V supply voltage?

A: Yes. All listed substitutes operate within the 3V to 3.6V range. Some parts (74CBTLV series and SN74CB series) extend the lower voltage limit to 2.3V, providing additional design flexibility while maintaining full compatibility with the original 3V minimum requirement.

Q: What packaging options are available for these substitutes?

A: All substitutes use 16-SSOP surface mount packaging with 0.154" width (3.90mm). Packaging variants (Tube, Bulk, Tape & Reel, Cut Tape) differ only in quantity and delivery format, not in component specifications or footprint.

Q: Which substitute offers the best supply chain availability?

A: SN74CBTLV3253DBQR from Texas Instruments currently has the highest inventory (32,800 pcs), followed by 74CBTLV3253QG8 from Renesas (17,485 pcs). Both are active products with ROHS3 compliance.