PI3B16245A Equivalent & Substitute Parts

Part Overview

The PI3B16245A is an 8 x 1:1 bus switch logic IC manufactured by Diodes Incorporated in a 48-TSSOP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Bus switches of this configuration are used for signal routing and multiplexing applications in digital systems requiring controlled switching between multiple signal paths.

Substiute Parts

PI3B16245A

Diodes IncorporatedIn Stock: 965PI3B16245A Datasheet

Current PartRFQ

74CBTLV16245PAG

Renesas Electronics CorporationIn Stock: 141474CBTLV16245PAG Datasheet

MFR RecommendedRFQ

74CBTLV16245PAG8

Renesas Electronics CorporationIn Stock: 97174CBTLV16245PAG8 Datasheet

MFR RecommendedRFQ

SN74CB3Q16245DGGR

Texas InstrumentsIn Stock: 2174SN74CB3Q16245DGGR Datasheet

MFR RecommendedRFQ

SN74CB3Q16245DGVR

Texas InstrumentsIn Stock: 2066SN74CB3Q16245DGVR Datasheet

MFR RecommendedRFQ

SN74CB3Q16245DL

Texas InstrumentsIn Stock: 846SN74CB3Q16245DL Datasheet

MFR RecommendedRFQ

SN74CB3Q16245DLR

Texas InstrumentsIn Stock: 22785SN74CB3Q16245DLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PI3B16245A is determined by the following critical parameters:

• Circuit Configuration: 8 x 1:1 topology with 2 independent circuits
• Voltage Supply Range: Minimum 3V operation required; substitutes must support 3V ~ 3.6V range
• Operating Temperature: -40°C ~ 85°C
• Package Compatibility: 48-TSSOP primary package; alternative packages (48-TFSOP, 48-TVSOP, 48-SSOP, 48-BSSOP) acceptable with mechanical verification
• Mounting Type: Surface Mount

All substitute parts listed maintain identical circuit topology and electrical operating parameters. Packaging variants are grouped by physical dimensions and supplier device package designation. Active product status and RoHS3 compliance are available in substitute options, addressing the obsolescence and compliance limitations of the original part.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Direct Package Match)

The 74CBTLV16245PAG and 74CBTLV16245PAG8 from Renesas Electronics provide direct functional equivalence in the 48-TSSOP package. Both maintain the 8 x 1:1 circuit configuration and -40°C ~ 85°C operating range. The extended voltage supply range (2.3V ~ 3.6V) provides additional design flexibility compared to the PI3B16245A. Both are active products with ROHS3 compliance, addressing obsolescence and regulatory requirements.

Texas Instruments Alternatives (Package Variants)

The SN74CB3Q16245 series from Texas Instruments offers multiple packaging options:

• SN74CB3Q16245DGGR: 48-TSSOP package, direct footprint compatibility with PI3B16245A
• SN74CB3Q16245DGVR: 48-TVSOP package (0.173" width), reduced footprint variant
• SN74CB3Q16245DL / SN74CB3Q16245DLR: 48-SSOP package (0.295" width), larger footprint

All Texas Instruments variants maintain identical electrical specifications and are active products with ROHS3 compliance. Package selection depends on PCB layout constraints and available inventory.

Compliance and Availability

All substitute parts are ROHS3 compliant and active products, eliminating supply chain risk associated with the obsolete PI3B16245A. The SN74CB3Q16245DLR variant offers the highest inventory availability (22,705 pcs), providing supply security for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the PI3B16245A be directly replaced with any of these substitutes?

A: Yes, all listed substitutes maintain the 8 x 1:1 circuit configuration, 2 independent circuits, and -40°C ~ 85°C operating temperature range. The extended voltage supply range (2.3V ~ 3.6V) in substitute parts is backward compatible with the original 3V ~ 3.6V specification. Package variants require PCB layout verification for mechanical fit.

Q: What is the difference between the Renesas 74CBTLV16245PAG and 74CBTLV16245PAG8?

A: Both parts are electrically identical with the same 48-TSSOP package. The primary difference is packaging format: 74CBTLV16245PAG is supplied in Tube packaging, while 74CBTLV16245PAG8 is supplied in Cut Tape (CT) format. Selection depends on assembly process requirements and inventory management preferences.

Q: Are the Texas Instruments SN74CB3Q16245 variants pin-compatible with the PI3B16245A?

A: The SN74CB3Q16245DGGR in 48-TSSOP package is pin-compatible. The SN74CB3Q16245DGVR (48-TVSOP) and SN74CB3Q16245DL/DLR (48-SSOP) variants have different package footprints and require PCB redesign for mechanical compatibility, though electrical functionality remains identical.

Q: Why do substitute parts support 2.3V minimum supply voltage when the PI3B16245A requires 3V?

A: The substitute parts feature enhanced design specifications that extend the lower voltage operating limit to 2.3V. This provides additional design margin and flexibility. Designs operating at 3V ~ 3.6V remain fully compatible with no functional changes required.

Q: Which substitute part offers the best supply availability?

A: The SN74CB3Q16245DLR from Texas Instruments offers the highest inventory (22,705 pcs). This part is supplied in Tape & Reel format with 48-SSOP packaging. For designs requiring the original 48-TSSOP footprint, the SN74CB3Q16245DGGR provides 2,100 pcs availability.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts listed are ROHS3 compliant. The original PI3B16245A is RoHS non-compliant. Substitution addresses both obsolescence and regulatory compliance requirements for new designs and production transitions.