TRSF3232CPWR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRSF3232CPWR is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-TSSOP surface mount package. This part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The device operates across a 3V to 5.5V supply range with a 1 Mbps data rate and 300 mV receiver hysteresis, suitable for legacy serial communication applications requiring RS232 protocol compliance.

Substiute Parts

TRSF3232CPWR

Texas InstrumentsIn Stock: 2368TRSF3232CPWR Datasheet

Current PartRFQ

SN75C3232EPWR

Texas InstrumentsIn Stock: 2394SN75C3232EPWR Datasheet

Parametric EquivalentRFQ

TRSF3232ECPWR

Texas InstrumentsIn Stock: 2173TRSF3232ECPWR Datasheet

Parametric EquivalentRFQ

MAX3232ECUE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2175MAX3232ECUE+ Datasheet

DirectRFQ

MAX3232ECUE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 7957MAX3232ECUE+T Datasheet

DirectRFQ

SP3232EUEY-L/TR

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

UpgradeRFQ

SP3232EUCY-L/TR

MaxLinear, Inc.In Stock: 1900SP3232EUCY-L/TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TRSF3232CPWR is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Protocol: RS232
• Number of Drivers/Receivers: 2/2
• Duplex: Full
• Data Rate: 1 Mbps
• Voltage - Supply: 3V ~ 5.5V
• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount

Allowable Variations:

• Receiver Hysteresis: 300 mV (primary) or 500 mV (acceptable for RS232 applications)
• Operating Temperature: 0°C ~ 70°C (primary) or -40°C ~ 85°C (extended range acceptable as upgrade)
• Product Status: Active parts preferred over obsolete
• Packaging Format: Cut Tape (CT), Digi-Reel, Tube, or Tape & Reel (TR) all acceptable

All substitute parts listed maintain identical functional performance within RS232 serial communication specifications and are pin-compatible in the 16-TSSOP package.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Identical Specifications):

• SN75C3232EPWR and TRSF3232ECPWR are direct parametric equivalents to TRSF3232CPWR, both manufactured by Texas Instruments with active product status. These are preferred for drop-in replacement applications requiring no design modification.

Secondary Substitutes (Minor Parameter Variation):

• MAX3232ECUE+ and MAX3232ECUE+T feature 500 mV receiver hysteresis compared to the original 300 mV specification. This increased hysteresis remains within RS232 protocol tolerances and does not affect functional compatibility. Both parts are active and widely available.

Extended Temperature Range Option:

• SP3232EUEY-L/TR provides an extended operating temperature range of -40°C to 85°C while maintaining all other electrical parameters identical to the original part. This option is suitable for applications requiring enhanced thermal performance or industrial environments.

Compliance Considerations:

• All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing and storage requirements.
• All parts carry EAR99 ECCN classification and HTSUS code 8542.39.0001.

Frequently Asked Questions (FAQ)

Q: Can MAX3232ECUE+ replace TRSF3232CPWR directly? A: Yes. The MAX3232ECUE+ is functionally compatible. The 500 mV receiver hysteresis specification exceeds the original 300 mV but remains within RS232 protocol margins. No circuit modification is required.

Q: What is the difference between SN75C3232EPWR and TRSF3232ECPWR? A: Both are Texas Instruments RS232 2/2 transceivers with identical electrical specifications. The primary difference is packaging format: SN75C3232EPWR is supplied in Cut Tape (CT) & Digi-Reel format, while TRSF3232ECPWR is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements.

Q: Should I use SP3232EUEY-L/TR for standard 0°C to 70°C applications? A: SP3232EUEY-L/TR is suitable for standard temperature range applications. Its extended -40°C to 85°C rating provides additional thermal margin without penalty. However, SP3232EUCY-L/TR matches the original 0°C to 70°C specification exactly if thermal margin is not a design consideration.

Q: Are all substitute parts pin-compatible with TRSF3232CPWR? A: Yes. All listed substitutes use the 16-TSSOP package with identical pinout. No PCB modification is required for substitution.

Q: What is the inventory status for these parts? A: All substitute parts are currently in active production with substantial inventory levels ranging from 1827 to 7900 pieces, ensuring supply chain continuity.

Q: Do substitute parts maintain RoHS compliance? A: Yes. All substitute parts are ROHS3 compliant or RoHS compliant, meeting current environmental and regulatory requirements.