TRSF3232CPWRG4 RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRSF3232CPWRG4 is a full-duplex RS232 transceiver manufactured by Texas Instruments, featuring 2 drivers and 2 receivers in a 16-TSSOP surface mount package. This part is classified as obsolete, with 1,085 units currently in stock. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, production planning, and long-term component availability. Active alternatives with identical or compatible electrical and mechanical specifications are available from multiple manufacturers.

Substiute Parts

TRSF3232CPWRG4

Texas InstrumentsIn Stock: 1105TRSF3232CPWRG4 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 of the TRSF3232CPWRG4 is determined by strict equivalence across the following critical parameters:

Core Electrical Parameters:

• Protocol: RS232
• Number of Drivers/Receivers: 2/2
• Duplex: Full
• Data Rate: 1 Mbps
• Voltage Supply Range: 3V to 5.5V
• Receiver Hysteresis: 300 mV (primary criterion)

Mechanical Parameters:

• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount

Compliance & Environmental:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into three categories based on their relationship to the main part:

1. Parametric Equivalents – Parts with identical electrical specifications and operating temperature range (0°C to 70°C)
2. Direct Equivalents – Parts with identical core specifications but different receiver hysteresis values (500 mV)
3. Upgrade Options – Parts with enhanced operating temperature range (-40°C to 85°C) and identical electrical specifications

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalents (Recommended for Direct Replacement):

SN75C3232EPWR and TRSF3232ECPWR are parametric equivalents with identical electrical specifications, operating temperature range, and receiver hysteresis. Both are active products from Texas Instruments with higher inventory availability (2,300 and 2,140 units respectively). These parts provide the most direct substitution path with no design modifications required.

Direct Equivalents (Alternative Manufacturers):

MAX3232ECUE+ and MAX3232ECUE+T from Analog Devices Inc./Maxim Integrated are functionally equivalent with one specification variance: receiver hysteresis of 500 mV versus 300 mV. This higher hysteresis value may affect noise immunity characteristics in specific applications. MAX3232ECUE+T offers superior inventory availability (7,900 units) and is packaged in Cut Tape & Digi-Reel format for high-volume production.

Upgrade Options (Extended Temperature Range):

SP3232EUEY-L/TR from MaxLinear, Inc. provides an extended operating temperature range of -40°C to 85°C while maintaining identical electrical specifications and 300 mV receiver hysteresis. This part is suitable for applications requiring wider temperature operation. SP3232EUCY-L/TR maintains the original 0°C to 70°C temperature range with identical specifications.

All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance profile.

Frequently Asked Questions (FAQ)

Q: Can I use MAX3232ECUE+ as a direct replacement for TRSF3232CPWRG4?

A: MAX3232ECUE+ is functionally compatible with one specification difference: receiver hysteresis is 500 mV instead of 300 mV. This higher hysteresis may reduce noise immunity in applications with marginal signal levels. If your design operates with adequate signal margins, this part is suitable. Otherwise, select SN75C3232EPWR or TRSF3232ECPWR for identical hysteresis specifications.

Q: What is the difference between SN75C3232EPWR and TRSF3232ECPWR?

A: Both parts are parametric equivalents with identical electrical specifications, operating temperature range (0°C to 70°C), and receiver hysteresis (300 mV). The primary difference is packaging: SN75C3232EPWR is supplied in Cut Tape & Digi-Reel format, while TRSF3232ECPWR is supplied in Tape & Reel format. Select based on your procurement and assembly requirements.

Q: Should I consider SP3232EUEY-L/TR for my application?

A: SP3232EUEY-L/TR is an upgrade option if your application requires extended operating temperature range (-40°C to 85°C). It maintains identical electrical specifications and 300 mV receiver hysteresis. If your design operates within 0°C to 70°C, this upgrade is not necessary but provides additional thermal margin for future applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original TRSF3232CPWRG4 environmental compliance profile.

Q: What is the impact of receiver hysteresis on my design?

A: Receiver hysteresis affects noise immunity and switching threshold behavior. The TRSF3232CPWRG4 specifies 300 mV hysteresis. MAX3232ECUE+ and MAX3232ECUE+T specify 500 mV hysteresis, which provides greater noise immunity but may require larger signal swings. Verify your signal levels meet the higher hysteresis threshold if selecting these parts.

Q: Can I mix different substitute parts in the same production run?

A: All substitute parts are pin-compatible with identical 16-TSSOP package dimensions and pinout. However, mixing parts with different receiver hysteresis values (300 mV vs. 500 mV) in the same design may introduce inconsistent noise immunity characteristics. Standardize on a single part number per design revision for consistency.

Q: Which substitute part has the best inventory availability?

A: MAX3232ECUE+T has the highest inventory availability with 7,900 units in stock. This part is suitable for high-volume production and offers the fastest procurement timeline.