TSB43AB23PDT IEEE 1394 Physical Layer Controller Equivalent & Substitute Parts

Part Overview

The TSB43AB23PDT is an IEEE 1394 Physical Layer Controller manufactured by Texas Instruments, designed for Firewire and i.Link applications with PCI interface support. This component implements IEEE 1394-1995 and 1394a-2000 standards in a 128-TQFP package. The part is currently in Last Time Buy status, indicating limited availability and the necessity to identify equivalent substitute components for ongoing design requirements and production continuity.

Substiute Parts

TSB43AB23PDT

Texas InstrumentsIn Stock: 4062TSB43AB23PDT Datasheet

Current PartRFQ

TSB43AB22APDT

Texas InstrumentsIn Stock: 19678TSB43AB22APDT Datasheet

Parametric EquivalentRFQ

TSB43AB22APDTG4

Texas InstrumentsIn Stock: 17303TSB43AB22APDTG4 Datasheet

Parametric EquivalentRFQ

TSB43AB22PDT

Texas InstrumentsIn Stock: 2046TSB43AB22PDT Datasheet

Parametric EquivalentRFQ

TSB43AB23PDTG4

Texas InstrumentsIn Stock: 1655TSB43AB23PDTG4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TSB43AB23PDT are determined by strict equivalence across the following critical parameters:

• Protocol: IEEE 1394
• Function: Physical Layer Controller
• Interface: PCI
• Standards: IEEE 1394-1995, 1394a-2000, OHCI, Firewire™, i.Link™
• Voltage Supply: 3V ~ 3.6V
• Operating Temperature: 0°C ~ 70°C
• Package: 128-TQFP (14x14)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)

All identified substitute parts maintain identical electrical specifications, thermal operating range, and physical packaging dimensions. Substitution is valid where these parameters align completely with the main part specification.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the TSB43AB23PDT. Selection among equivalent parts should be based on product status and availability:

TSB43AB22APDT is available in the highest quantity (19,643 pcs) with Last Time Buy status, making it the primary substitute choice for production continuity.

TSB43AB22PDT offers secondary availability (1,979 pcs) with Last Time Buy status and identical specifications.

TSB43AB22APDTG4 and TSB43AB23PDTG4 carry Obsolete or Discontinued status respectively, limiting their suitability for new production designs despite full parametric equivalence.

All parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can TSB43AB22APDT be used as a direct replacement for TSB43AB23PDT?

A: Yes. Both parts share identical electrical specifications, operating temperature range, supply voltage, package configuration, and standards support. Direct substitution is valid at the component level.

Q: What is the difference between TSB43AB23PDT and TSB43AB22APDT?

A: The parts are functionally equivalent across all provided electrical and mechanical parameters. The primary difference is product status and inventory availability. TSB43AB22APDT has higher stock levels.

Q: Are the G4 variants (TSB43AB22APDTG4 and TSB43AB23PDTG4) suitable for new designs?

A: Both G4 variants maintain full parametric equivalence but carry Obsolete or Discontinued status. They are not recommended for new production designs due to limited availability and end-of-life status.

Q: Does packaging differ between these parts?

A: All parts use 128-TQFP (14x14) package configuration. Packaging is identical across all variants, ensuring PCB layout compatibility.

Q: Are there any compliance differences between substitute parts?

A: No. All parts are ROHS3 compliant and REACH Unaffected, meeting current regulatory requirements identically.

Q: What is the moisture sensitivity level for these components?

A: All parts carry MSL 3 rating with 168-hour floor life, requiring identical handling and storage protocols during assembly.