TUSB1105RGTRG4 Equivalent & Substitute Parts

Part Overview

The TUSB1105RGTRG4 is a half-duplex USB 2.0 transceiver interface IC manufactured by Texas Instruments, housed in a 16-VQFN (3x3) surface mount package with exposed pad. This device functions as a 1/1 transceiver for USB 2.0 protocol applications requiring half-duplex communication at 1.5 Mbps data rates. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for seamless design substitution.

Substiute Parts

TUSB1105RGTRG4

Texas InstrumentsIn Stock: 915TUSB1105RGTRG4 Datasheet

Current PartRFQ

TUSB1105RGTR

Texas InstrumentsIn Stock: 4202TUSB1105RGTR Datasheet

Parametric EquivalentRFQ

TUSB1106RGTR

Texas InstrumentsIn Stock: 3181TUSB1106RGTR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TUSB1105RGTRG4 are determined by strict equivalence across the following critical parameters:

• Protocol: USB 2.0
• Type: Transceiver (1/1 configuration)
• Duplex: Half
• Data Rate: 1.5 Mbps
• Receiver Hysteresis: 450 mV
• Voltage Supply Range: 1.65V ~ 3.6V
• Operating Temperature Range: -40°C ~ 85°C
• Package: 16-VFQFN Exposed Pad (16-VQFN 3x3)
• Mounting Type: Surface Mount
• Compliance: ROHS3, REACH Unaffected

The TUSB1105RGTRG4 differs from its substitutes only in packaging format (Tape & Reel with gauge suffix) and product status. All electrical and mechanical specifications remain identical across the substitute group.

Parameter Comparison

Engineering Selection Recommendations

The TUSB1105RGTR and TUSB1106RGTR are direct parametric equivalents to the TUSB1105RGTRG4. Both substitute parts maintain identical electrical performance, thermal operating range, supply voltage specifications, and physical package dimensions.

TUSB1105RGTR is available in Cut Tape and Digi-Reel packaging formats and carries Active product status, providing immediate availability for new designs and production replenishment.

TUSB1106RGTR is available in Tape & Reel packaging format and carries Active product status, offering compatibility with automated assembly processes requiring continuous reel supply.

Both substitutes comply with ROHS3 and REACH requirements, matching the regulatory profile of the original part. Selection between TUSB1105RGTR and TUSB1106RGTR depends on packaging and supply chain requirements rather than electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Can TUSB1105RGTR and TUSB1106RGTR be used interchangeably with TUSB1105RGTRG4?

A: Yes. All three parts share identical electrical specifications, operating parameters, and physical package dimensions. Substitution is valid from an engineering standpoint. Differences exist only in product status and packaging format.

Q: What is the difference between TUSB1105RGTR and TUSB1106RGTR?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary difference is the base product number designation (TUSB1105 versus TUSB1106) and packaging format availability. TUSB1105RGTR is supplied in Cut Tape and Digi-Reel formats, while TUSB1106RGTR is supplied in Tape & Reel format.

Q: Why is TUSB1105RGTRG4 discontinued?

A: Product discontinuation at DiGi Electronics does not indicate a design flaw or obsolescence of the underlying technology. The TUSB1105 and TUSB1106 series remain in active production. Substitution to TUSB1105RGTR or TUSB1106RGTR maintains full design compatibility.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. All three parts operate within identical voltage ranges (1.65V ~ 3.6V), temperature ranges (-40°C ~ 85°C), and maintain the same receiver hysteresis (450 mV) and data rate (1.5 Mbps) specifications.

Q: Which packaging format should I select?

A: Selection depends on manufacturing process requirements. Cut Tape and Digi-Reel formats (TUSB1105RGTR) suit lower-volume or manual assembly operations. Tape & Reel format (TUSB1106RGTR) is optimized for high-volume automated pick-and-place assembly.

Q: Do these parts require different PCB layouts or design modifications?

A: No. The 16-VQFN (3x3) package with exposed pad is identical across all three parts. PCB footprints, trace routing, and thermal management designs remain unchanged.