PI3C3384QEX Equivalent & Substitute Parts

Part Overview

The PI3C3384QEX is a bus switch logic integrated circuit manufactured by Diodes Incorporated, configured as a 5 x 1:1 multiplexer in a 24-QSOP surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited inventory availability. Bus switches of this configuration are essential in digital systems requiring signal routing and isolation between multiple data paths with minimal propagation delay and low on-resistance characteristics.

Substiute Parts

PI3C3384QEX

Diodes IncorporatedIn Stock: 18982PI3C3384QEX Datasheet

Current PartRFQ

74CBTLV3384QG8

IDT, Integrated Device Technology IncIn Stock: 938074CBTLV3384QG8 Datasheet

Parametric EquivalentRFQ

SN74CB3Q3384ADBQR

Texas InstrumentsIn Stock: 3920SN74CB3Q3384ADBQR Datasheet

Parametric EquivalentRFQ

SN74CB3T3384DBQR

Texas InstrumentsIn Stock: 10347SN74CB3T3384DBQR Datasheet

Parametric EquivalentRFQ

SN74CBTLV3384DBQR

Texas InstrumentsIn Stock: 4659SN74CBTLV3384DBQR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI3C3384QEX is determined by strict parametric matching across the following critical criteria:

Mandatory Matching Parameters:

• Circuit configuration: 5 x 1:1 topology
• Independent circuits: 2
• Voltage supply range: 2.3V ~ 3.6V
• Operating temperature range: -40°C ~ 85°C
• Mounting type: Surface Mount
• Package / Case: 24-SSOP (0.154", 3.90mm Width)
• Supplier device package: 24-QSOP or 24-SSOP

All four substitute parts listed meet these mandatory parameters and are therefore direct functional equivalents. Differences in product status, manufacturer, and packaging format (Tape & Reel versus Bulk) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The SN74CB3T3384DBQR and SN74CBTLV3384DBQR from Texas Instruments are preferred substitutes due to active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant and available in Tape & Reel packaging, matching the original part's packaging format. These parts are suitable for new designs and production environments requiring sustained component availability.

Secondary Substitute (Active, Alternative Packaging):

The SN74CB3Q3384ADBQR from Texas Instruments is an active alternative with identical electrical specifications. This part differs only in packaging format and moisture sensitivity classification. It is suitable for applications where packaging format flexibility is acceptable.

Alternative Substitute (Active, Different Manufacturer):

The 74CBTLV3384QG8 from IDT is an active product with matching electrical parameters. This part is available in Bulk packaging format rather than Tape & Reel. Selection of this part should account for packaging and handling requirements specific to bulk component procurement.

Original Part Consideration:

The PI3C3384QEX retains Last Time Buy status with 18,933 pieces in stock. This part may be selected for applications requiring exact manufacturer continuity or where existing inventory reserves are available.

Frequently Asked Questions (FAQ)

Q: Can the SN74CB3T3384DBQR directly replace the PI3C3384QEX in existing designs?

A: Yes. Both parts share identical electrical specifications including voltage supply range (2.3V ~ 3.6V), operating temperature range (-40°C ~ 85°C), circuit configuration (5 x 1:1), and package dimensions (24-SSOP). Pin-to-pin compatibility is maintained. The primary difference is product status and manufacturer.

Q: What is the significance of the Last Time Buy status on the PI3C3384QEX?

A: Last Time Buy indicates that Diodes Incorporated has discontinued production of this part. Existing inventory is limited to 18,933 pieces. For applications requiring long-term supply assurance, migration to an active substitute part is recommended.

Q: Are there differences in moisture sensitivity between the main part and substitutes?

A: Yes. The PI3C3384QEX has Moisture Sensitivity Level 1 (Unlimited), while the Texas Instruments substitutes (SN74CB3T3384DBQR, SN74CB3Q3384ADBQR, SN74CBTLV3384DBQR) have MSL 2 (1 Year). This affects storage and handling requirements. MSL 2 components require controlled storage conditions and have a one-year shelf life from the date of manufacture.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Bulk packaging formats contain identical die and internal circuitry. Packaging format differences affect only procurement, handling, and automated assembly processes. Electrical performance and reliability are unaffected.

Q: Are all substitute parts ROHS3 compliant?

A: The PI3C3384QEX and all Texas Instruments substitutes (SN74CB3T3384DBQR, SN74CB3Q3384ADBQR, SN74CBTLV3384DBQR) are ROHS3 compliant. The IDT 74CBTLV3384QG8 does not specify RoHS status in the provided data.

Q: Which substitute part should be selected for new product designs?

A: The SN74CB3T3384DBQR or SN74CBTLV3384DBQR are recommended for new designs due to active product status, ensuring availability throughout the design lifecycle and production ramp. Both parts are ROHS3 compliant and available in Tape & Reel packaging suitable for automated assembly.