TRSF3232IPW RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRSF3232IPW is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a 3V to 5.5V supply range with a 1Mbps data rate and 300mV receiver hysteresis, designed for serial communication interface applications requiring full RS232 protocol compliance.

Substiute Parts

TRSF3232IPW

Texas InstrumentsIn Stock: 937TRSF3232IPW Datasheet

Current PartRFQ

TRSF3232EIPWR

Texas InstrumentsIn Stock: 19289TRSF3232EIPWR Datasheet

DirectRFQ

SN65C3232PW

Texas InstrumentsIn Stock: 75553SN65C3232PW Datasheet

Parametric EquivalentRFQ

MAX3232EEUE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2164MAX3232EEUE+ Datasheet

DirectRFQ

MAX3232EEUE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 30325MAX3232EEUE+T Datasheet

DirectRFQ

SP3232EBEY-L/TR

MaxLinear, Inc.In Stock: 30216SP3232EBEY-L/TR Datasheet

DirectRFQ

SP3232EUEY-L/TR

MaxLinear, Inc.In Stock: 4865SP3232EUEY-L/TR Datasheet

DirectRFQ

ST3232EBTR

STMicroelectronicsIn Stock: 129884ST3232EBTR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TRSF3232IPW is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

• Protocol: RS232
• Number of Drivers/Receivers: 2/2
• Duplex: Full
• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Voltage - Supply: 3V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount

Allowable Variation Parameters:

• Receiver Hysteresis: 300mV or 500mV (both acceptable for RS232 full-duplex operation)
• Data Rate: 250kbps or 1Mbps (both support RS232 protocol requirements)
• Product Status: Active or Obsolete (both are valid for substitution purposes)
• Packaging Format: Tube, Cut Tape (CT) & Digi-Reel®, or Tape & Reel (TR)

Substitute parts must maintain identical electrical interface characteristics, package footprint, and thermal operating range to ensure direct PCB compatibility and functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement: TRSF3232EIPWR is the direct active equivalent manufactured by Texas Instruments. This part maintains identical electrical specifications (300mV receiver hysteresis, 1Mbps data rate) and package configuration. Active product status ensures long-term availability and supply chain continuity.

Secondary Recommendations - Parametric Equivalents:

SP3232EUEY-L/TR (MaxLinear, Inc.) matches the original 1Mbps data rate and 300mV receiver hysteresis specifications. Active status and Tape & Reel packaging support high-volume production requirements.

SN65C3232PW (Texas Instruments) provides parametric equivalence with identical electrical performance but carries obsolete status, limiting long-term viability for new designs.

Alternative Substitutes - Reduced Data Rate: MAX3232EEUE+T and ST3232EBTR operate at 250kbps data rate with 500mV receiver hysteresis. These parts are suitable for applications where reduced data rate and increased receiver hysteresis margin do not impact system performance. Both maintain ROHS3 compliance and active product status.

All recommended substitutes maintain ROHS3 compliance, MSL Level 1 rating, and identical operating temperature range (-40°C to 85°C), ensuring regulatory and environmental compatibility with the original TRSF3232IPW specification.

Frequently Asked Questions (FAQ)

Q: Can MAX3232EEUE+T replace TRSF3232IPW directly? A: MAX3232EEUE+T is a parametric equivalent with identical package and supply voltage specifications. However, it operates at 250kbps data rate versus the original 1Mbps, and features 500mV receiver hysteresis versus 300mV. Substitution is valid only if the application does not require 1Mbps data rate performance.

Q: What is the difference between receiver hysteresis values of 300mV and 500mV? A: Receiver hysteresis determines the voltage differential between logic state transitions. Both 300mV and 500mV hysteresis values are within RS232 protocol specifications. Higher hysteresis (500mV) provides increased noise immunity; lower hysteresis (300mV) allows faster signal transitions. Selection depends on application noise environment and timing requirements.

Q: Are all substitute parts RoHS compliant? A: All listed substitute parts maintain ROHS3 compliance status, matching the original TRSF3232IPW specification. This ensures compatibility with RoHS-regulated supply chains and end-use applications.

Q: Does packaging format affect electrical performance? A: Packaging format (Tube, Cut Tape & Digi-Reel, Tape & Reel) does not affect electrical performance. Selection is based on production volume, automated assembly requirements, and inventory management practices. All formats contain identical die and electrical specifications.

Q: Which substitute offers the best supply availability? A: ST3232EBTR (STMicroelectronics) currently maintains the highest inventory level at 129,821 pieces. TRSF3232EIPWR (Texas Instruments) provides 19,200 pieces with direct manufacturer equivalence. Both support immediate procurement for production requirements.

Q: Can I use SN65C3232PW as a long-term solution? A: SN65C3232PW carries obsolete product status despite current inventory availability. For new designs and long-term production, active-status alternatives such as TRSF3232EIPWR or SP3232EUEY-L/TR are recommended to ensure sustained supply chain support.