TRSF3232IDR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRSF3232IDR is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-SOIC surface mount package. This interface IC operates across a 3V to 5.5V supply range with a 1 Mbps data rate and 300 mV receiver hysteresis. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

TRSF3232IDR

Texas InstrumentsIn Stock: 12648TRSF3232IDR Datasheet

Current PartRFQ

SN65C3232DR

Texas InstrumentsIn Stock: 2568SN65C3232DR Datasheet

Parametric EquivalentRFQ

SN65C3232EDR

Texas InstrumentsIn Stock: 20491SN65C3232EDR Datasheet

Parametric EquivalentRFQ

TRSF3232EIDR

Texas InstrumentsIn Stock: 3563TRSF3232EIDR Datasheet

Parametric EquivalentRFQ

SP3232EUCN-L

MaxLinear, Inc.In Stock: 1508SP3232EUCN-L Datasheet

MFR RecommendedRFQ

SP3232EUCN-L/TR

MaxLinear, Inc.In Stock: 32960SP3232EUCN-L/TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TRSF3232IDR is determined by strict equivalence across the following parameters:

• Protocol: RS232
• Number of Drivers/Receivers: 2/2
• Duplex: Full
• Data Rate: 1 Mbps
• Voltage - Supply: 3V ~ 5.5V
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Receiver Hysteresis: 300 mV
• Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Parametric Equivalents (Texas Instruments): SN65C3232DR, SN65C3232EDR, and TRSF3232EIDR maintain identical electrical specifications and package requirements. These parts are active products from the same manufacturer, providing direct functional replacement.

Manufacturer Recommended (MaxLinear, Inc.): SP3232EUCN-L and SP3232EUCN-L/TR are manufacturer-recommended alternatives that meet all core electrical and mechanical parameters. These parts differ in packaging format (Tube vs. Tape & Reel) and operating temperature range (0°C ~ 70°C vs. -40°C ~ 85°C).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Active Product Status): SN65C3232EDR is the primary substitute, offering the highest inventory availability (20,400 pcs) among Texas Instruments parametric equivalents. SN65C3232DR and TRSF3232EIDR provide alternative Texas Instruments sources with identical electrical specifications and full operating temperature range (-40°C ~ 85°C).

For Extended Temperature Applications: All Texas Instruments substitutes (SN65C3232DR, SN65C3232EDR, TRSF3232EIDR) maintain the full -40°C ~ 85°C operating range of the original TRSF3232IDR. The MaxLinear alternatives (SP3232EUCN-L and SP3232EUCN-L/TR) operate within a reduced range (0°C ~ 70°C) and are suitable only for applications within this narrower temperature specification.

For Packaging Considerations: SP3232EUCN-L/TR matches the original Tape & Reel packaging format with substantial inventory (32,900 pcs). SP3232EUCN-L is supplied in Tube format. Texas Instruments substitutes are available in Cut Tape and Digi-Reel formats.

For Compliance Requirements: All substitute parts maintain ROHS3 compliance and REACH Unaffected status. Moisture sensitivity differs between manufacturers: Texas Instruments parts are MSL 1 (Unlimited), while MaxLinear parts are MSL 2 (1 Year).

Frequently Asked Questions (FAQ)

Q: Can SN65C3232EDR be used as a direct replacement for TRSF3232IDR?

A: Yes. SN65C3232EDR is a parametric equivalent with identical electrical specifications, package dimensions, and operating temperature range. The primary difference is product status (Active vs. Obsolete) and packaging format (Cut Tape & Digi-Reel vs. Tape & Reel).

Q: What is the difference between the Texas Instruments and MaxLinear substitutes?

A: Texas Instruments substitutes (SN65C3232DR, SN65C3232EDR, TRSF3232EIDR) maintain the full -40°C ~ 85°C operating temperature range and MSL 1 moisture sensitivity. MaxLinear substitutes (SP3232EUCN-L, SP3232EUCN-L/TR) operate within 0°C ~ 70°C and have MSL 2 moisture sensitivity. All maintain identical electrical performance and package specifications.

Q: Are the SP3232EUCN-L and SP3232EUCN-L/TR interchangeable?

A: Both parts are electrically identical. The difference is packaging format: SP3232EUCN-L is supplied in Tube, while SP3232EUCN-L/TR is supplied in Tape & Reel. Selection depends on assembly process requirements and inventory handling procedures.

Q: Does operating temperature range affect substitution suitability?

A: Operating temperature range affects suitability based on application requirements. For applications operating within 0°C ~ 70°C, MaxLinear parts are suitable. For applications requiring the full -40°C ~ 85°C range, Texas Instruments substitutes are required.

Q: What is the significance of MSL rating differences?

A: Moisture Sensitivity Level (MSL) indicates storage and handling requirements. MSL 1 (Unlimited) parts have no moisture-related storage restrictions. MSL 2 (1 Year) parts require controlled storage conditions and have a one-year shelf life from the date of manufacture. This affects supply chain logistics and component shelf management.

Q: Are all substitutes pin-compatible with the original TRSF3232IDR?

A: Yes. All substitute parts use the 16-SOIC package with identical pin configuration and electrical interface specifications, ensuring direct PCB compatibility.