TRSF3232IPWRG4 RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRSF3232IPWRG4 is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-TSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device 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.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRSF3232IPWRG4
Manufacturer	Texas Instruments
Category	Interface
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	300 mV
Data Rate	1Mbps
Voltage - Supply	3V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	16-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the TRSF3232IPWRG4 is determined by the following critical parameters: RS232 protocol compliance, 2/2 driver/receiver configuration, full-duplex operation, 16-TSSOP package footprint, 3V to 5.5V supply voltage range, and -40°C to 85°C operating temperature. Parts are grouped into two categories:

Parametric Equivalents maintain all electrical and mechanical specifications of the original part, including 1Mbps data rate and 300mV receiver hysteresis. These parts are direct functional replacements with identical performance characteristics.

Direct Substitutes share the same package, protocol, duplex mode, supply voltage, and temperature range but may differ in data rate or receiver hysteresis specifications. These parts are compatible for applications where the performance variance does not impact system requirements.

Reduced-Channel Alternatives (SP3220EUEY-L/TR) feature a 1/1 driver/receiver configuration instead of 2/2, suitable only for applications requiring single-channel RS232 communication.

Parameter Comparison

Part Number	Manufacturer	Product Status	Drivers/Receivers	Data Rate	Receiver Hysteresis	Package	Inventory
TRSF3232IPWRG4	Texas Instruments	Obsolete	2/2	1Mbps	300 mV	16-TSSOP	1002 Pcs
SN65C3232EPWR	Texas Instruments	Active	2/2	1Mbps	300 mV	16-TSSOP	25300 Pcs
SN65C3232PWR	Texas Instruments	Active	2/2	1Mbps	300 mV	16-TSSOP	44289 Pcs
TRSF3232EIPWR	Texas Instruments	Active	2/2	1Mbps	300 mV	16-TSSOP	19200 Pcs
MAX3232EEUE+	Analog Devices Inc./Maxim Integrated	Active	2/2	250kbps	500 mV	16-TSSOP	2100 Pcs
MAX3232EEUE+T	Analog Devices Inc./Maxim Integrated	Active	2/2	250kbps	500 mV	16-TSSOP	30300 Pcs
SP3232EBEY-L/TR	MaxLinear, Inc.	Active	2/2	250kbps	300 mV	16-TSSOP	30194 Pcs
ST3232EBTR	STMicroelectronics	Active	2/2	250kbps	500 mV	16-TSSOP	129821 Pcs
SP3220EUEY-L/TR	MaxLinear, Inc.	Active	1/1	1Mbps	300 mV	16-TSSOP	3594 Pcs
SP3232EUEY-L/TR	MaxLinear, Inc.	Active	2/2	1Mbps	300 mV	16-TSSOP	4778 Pcs

Engineering Selection Recommendations

For applications requiring full parametric equivalence to the TRSF3232IPWRG4, select from the Texas Instruments active-status alternatives: SN65C3232EPWR, SN65C3232PWR, or TRSF3232EIPWR. These parts maintain identical electrical performance (1Mbps data rate, 300mV hysteresis) and are manufactured by the original supplier, ensuring design continuity and supply chain stability. SN65C3232PWR offers the highest inventory availability at 44,289 pieces.

For applications where data rate can be reduced to 250kbps, the Analog Devices MAX3232EEUE+T and STMicroelectronics ST3232EBTR provide active-status alternatives with higher inventory levels (30,300 and 129,821 pieces respectively). Both maintain full 2/2 driver/receiver configuration and 16-TSSOP packaging. The ST3232EBTR offers exceptional availability.

The MaxLinear SP3232EUEY-L/TR provides parametric equivalence with 1Mbps data rate and 300mV hysteresis in active status, with 4,778 pieces available.

The SP3220EUEY-L/TR is suitable only for single-channel RS232 applications and should not be selected for designs requiring dual-channel communication.

All listed substitutes maintain ROHS3 compliance, MSL Level 1 rating, and -40°C to 85°C operating temperature range, ensuring compatibility with existing design specifications and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use MAX3232EEUE+T as a direct replacement for TRSF3232IPWRG4?

A: The MAX3232EEUE+T is functionally compatible in the same 16-TSSOP package with identical 2/2 driver/receiver configuration and supply voltage range. However, it operates at 250kbps maximum data rate versus the original 1Mbps, and features 500mV receiver hysteresis instead of 300mV. Selection depends on whether your application requires the higher data rate and tighter hysteresis specification.

Q: What is the difference between SN65C3232EPWR and SN65C3232PWR?

A: Both parts are parametric equivalents with identical electrical specifications (1Mbps, 300mV hysteresis, 2/2 configuration). The primary difference is packaging: SN65C3232EPWR is supplied in Cut Tape and Digi-Reel format, while SN65C3232PWR is also available in Cut Tape and Digi-Reel. SN65C3232PWR has significantly higher inventory availability (44,289 vs 25,300 pieces).

Q: Why is SP3220EUEY-L/TR listed as a substitute if it has only 1/1 drivers/receivers?

A: SP3220EUEY-L/TR is a parametric equivalent in terms of data rate (1Mbps) and receiver hysteresis (300mV), but the reduced channel count (1/1 instead of 2/2) makes it suitable only for applications requiring single-channel RS232 communication. It should not be selected for designs requiring dual-channel functionality.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitutes maintain ROHS3 compliance except SP3220EUEY-L/TR and SP3232EUEY-L/TR, which are RoHS Compliant. All parts are MSL Level 1 rated and operate within the -40°C to 85°C temperature range.

Q: Which substitute offers the best supply availability?

A: ST3232EBTR from STMicroelectronics provides the highest inventory at 129,821 pieces. This part operates at 250kbps data rate with 500mV receiver hysteresis, making it suitable for applications where these specifications are acceptable.

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