PI3B16244AE Equivalent & Substitute Parts

Part Overview

The PI3B16244AE is a 4 x 1:1 bus switch logic IC manufactured by Diodes Incorporated in a 48-TSSOP package. This component functions as a high-speed multiplexer for digital signal routing in logic applications. The part is currently obsolete, making equivalent substitutes necessary for new designs or component replenishment. Substitute parts must maintain functional equivalence through matching circuit topology, electrical specifications, and package compatibility.

Substiute Parts

PI3B16244AE

Diodes IncorporatedIn Stock: 1282PI3B16244AE Datasheet

Current PartRFQ

SN74CB3Q16244DGGR

Texas InstrumentsIn Stock: 2405SN74CB3Q16244DGGR Datasheet

DirectRFQ

QS3VH16244PAG

IDT, Integrated Device Technology IncIn Stock: 3746QS3VH16244PAG Datasheet

MFR RecommendedRFQ

QS3VH16244PAG8

IDT, Integrated Device Technology IncIn Stock: 12512QS3VH16244PAG8 Datasheet

MFR RecommendedRFQ

SN74CB3Q16244DL

Texas InstrumentsIn Stock: 692SN74CB3Q16244DL Datasheet

MFR RecommendedRFQ

SN74CB3Q16244DLR

Texas InstrumentsIn Stock: 2158SN74CB3Q16244DLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

• Circuit Topology: All substitutes must maintain 4 x 1:1 configuration with 4 independent circuits
• Voltage Supply Range: Substitutes must support the operating voltage window; parts with extended lower voltage limits (2.3V minimum) are compatible with PI3B16244AE applications
• Operating Temperature: All substitutes must cover -40°C ~ 85°C range
• Package Compatibility: Primary substitutes use 48-TFSOP (0.240", 6.10mm); secondary substitutes use 48-BSSOP (0.295", 7.50mm) with different pin pitch
• Compliance: All substitutes maintain ROHS3 compliance and MSL 1 rating
• Product Status: Active status substitutes are preferred over obsolete parts

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Direct Package Match - 48-TFSOP)

SN74CB3Q16244DGGR and QS3VH16244PAG series parts are direct functional equivalents with identical 48-TFSOP packaging. These substitutes support extended lower voltage operation (2.3V minimum) while maintaining full compatibility with PI3B16244AE applications. Both manufacturers offer active product status with established supply chains.

Secondary Substitutes (Package Variant - 48-BSSOP)

SN74CB3Q16244DL and SN74CB3Q16244DLR use 48-BSSOP packaging with different pin pitch (0.295" vs 0.240"). These parts require PCB layout modification and are suitable only when board redesign is feasible. Both maintain active status and ROHS3 compliance.

Compliance Considerations

All recommended substitutes maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements. Texas Instruments and IDT parts carry documented compliance certifications matching the original PI3B16244AE specifications.

Frequently Asked Questions (FAQ)

Q: Can SN74CB3Q16244DGGR directly replace PI3B16244AE without PCB modification?

A: Yes. SN74CB3Q16244DGGR uses identical 48-TFSOP packaging with matching pin configuration, voltage specifications, and operating temperature range. No PCB layout changes are required.

Q: What is the difference between QS3VH16244PAG and QS3VH16244PAG8?

A: Both parts are functionally equivalent 4 x 1:1 bus switches with identical electrical specifications and 48-TFSOP packaging. The difference is packaging format: QS3VH16244PAG is supplied in bulk, while QS3VH16244PAG8 is also supplied in bulk. Inventory availability differs between variants.

Q: Why do SN74CB3Q16244DL and SN74CB3Q16244DLR require PCB modification?

A: These parts use 48-BSSOP packaging with 0.295" width versus the 0.240" width of 48-TFSOP. The different pin pitch requires new footprint design and PCB layout revision.

Q: Are all substitutes rated for -40°C ~ 85°C operation?

A: Yes. All listed substitutes maintain the full -40°C ~ 85°C operating temperature range specified for PI3B16244AE.

Q: Which substitute offers the highest inventory availability?

A: QS3VH16244PAG8 (IDT) currently has 12,445 units in stock, providing the largest available inventory among all substitutes.

Q: Do substitute parts support the 3V ~ 3.6V supply range of the original part?

A: Yes. All substitutes support 2.3V ~ 3.6V operation, which encompasses the original 3V ~ 3.6V specification. Extended lower voltage support does not affect compatibility with existing 3V ~ 3.6V designs.