TRS3232CPW Equivalent & Substitute Parts

Part Overview

The TRS3232CPW is a 2/2 full-duplex RS232 transceiver IC in 16-TSSOP surface mount packaging, manufactured by Texas Instruments. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement. The TRS3232CPW operates across a 3V to 5.5V supply range with a 250kbps data rate and 300mV receiver hysteresis, making it suitable for legacy RS232 communication applications requiring low-voltage operation.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	TRS3232CPW
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Voltage - Supply	3V ~ 5.5V
Data Rate	250kbps
Receiver Hysteresis	300 mV
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TRS3232CPW 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
Package / Case: 16-TSSOP (0.173", 4.40mm Width)
Voltage - Supply: 3V ~ 5.5V
Mounting Type: Surface Mount

Allowable Variation Parameters:

Receiver Hysteresis: 300mV or 500mV (both acceptable for RS232 operation)
Data Rate: 250kbps or higher (backward compatible)
Operating Temperature: Extended range (-40°C ~ 85°C) is acceptable for 0°C ~ 70°C applications
Product Status: Active parts are preferred over obsolete parts for new procurement

Substitute parts are grouped into three categories based on their relationship to the TRS3232CPW:

Direct Manufacturer Equivalent: TRS3232IPWR maintains identical electrical specifications with extended operating temperature range and active product status.

Parametric Equivalents: MAX3232CPW and MAX3232ECPW match all critical parameters with identical operating temperature range and product status.

Upgrade Options: MAX3232EEUE+, MAX3232EEUE+T, SP3232EBEY-L/TR, ST3232EBTR, ADM3232EARUZ, ADM3232EARUZ-REEL7, and ICL3232CVZ-T provide enhanced performance characteristics including extended temperature ranges, higher data rates, or improved receiver hysteresis while maintaining full compatibility with the 16-TSSOP package and RS232 protocol requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Drivers/Receivers	Package	Voltage Supply	Data Rate	Receiver Hysteresis	Operating Temperature	RoHS Status
TRS3232CPW	Texas Instruments	Obsolete	2/2	16-TSSOP	3V ~ 5.5V	250kbps	300mV	0°C ~ 70°C	ROHS3
TRS3232IPWR	Texas Instruments	Active	2/2	16-TSSOP	3V ~ 5.5V	250kbps	300mV	-40°C ~ 85°C	ROHS3
MAX3232CPW	Texas Instruments	Obsolete	2/2	16-TSSOP	3V ~ 5.5V	250kbps	300mV	0°C ~ 70°C	ROHS3
MAX3232ECPW	Texas Instruments	Obsolete	2/2	16-TSSOP	3V ~ 5.5V	250kbps	300mV	0°C ~ 70°C	ROHS3
MAX3232EEUE+	Analog Devices Inc./Maxim Integrated	Active	2/2	16-TSSOP	3V ~ 5.5V	250kbps	500mV	-40°C ~ 85°C	ROHS3
MAX3232EEUE+T	Analog Devices Inc./Maxim Integrated	Active	2/2	16-TSSOP	3V ~ 5.5V	250kbps	500mV	-40°C ~ 85°C	ROHS3
SP3232EBEY-L/TR	MaxLinear, Inc.	Active	2/2	16-TSSOP	3V ~ 5.5V	250kbps	300mV	-40°C ~ 85°C	ROHS3
ST3232EBTR	STMicroelectronics	Active	2/2	16-TSSOP	3V ~ 5.5V	250kbps	500mV	-40°C ~ 85°C	ROHS3
ADM3232EARUZ	Analog Devices Inc.	Active	2/2	16-TSSOP	3V ~ 5.5V	460Kbps	500mV	-40°C ~ 85°C	ROHS3
ADM3232EARUZ-REEL7	Analog Devices Inc.	Active	2/2	16-TSSOP	3V ~ 5.5V	460Kbps	500mV	-40°C ~ 85°C	ROHS3
ICL3232CVZ-T	Renesas Electronics Corporation	Active	2/2	16-TSSOP	3V ~ 5.5V	250kbps	300mV	0°C ~ 70°C	ROHS3

Engineering Selection Recommendations

For Direct Replacement with Extended Reliability: TRS3232IPWR is the primary direct substitute, offering identical electrical specifications to the TRS3232CPW with extended operating temperature range (-40°C ~ 85°C) and active product status. This part is manufactured by Texas Instruments and maintains full compatibility with existing designs.

For Parametric Equivalence with Obsolete Status: MAX3232CPW and MAX3232ECPW provide identical electrical and thermal specifications to the TRS3232CPW. Both parts are obsolete and should be considered only when inventory constraints require their use. These parts are suitable for applications with operating temperature requirements limited to 0°C ~ 70°C.

For Active Production with Enhanced Performance: MAX3232EEUE+, MAX3232EEUE+T, SP3232EBEY-L/TR, and ST3232EBTR are active parts offering extended operating temperature ranges (-40°C ~ 85°C) and improved receiver hysteresis (500mV). These parts are suitable for applications requiring long-term supply assurance and enhanced noise immunity.

For Superior Data Rate Performance: ADM3232EARUZ and ADM3232EARUZ-REEL7 provide the highest data rate specification (460Kbps) with 500mV receiver hysteresis and extended operating temperature range. These parts are manufactured by Analog Devices Inc. and are recommended for applications requiring higher communication speeds while maintaining full RS232 protocol compliance.

For Temperature-Constrained Applications: ICL3232CVZ-T is manufactured by Renesas Electronics Corporation and maintains the original operating temperature range (0°C ~ 70°C) with 300mV receiver hysteresis. This part is suitable for applications where thermal specifications match the TRS3232CPW requirements.

All substitute parts maintain ROHS3 compliance and MSL ratings compatible with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can TRS3232IPWR be used as a direct replacement for TRS3232CPW? A: Yes. TRS3232IPWR maintains identical electrical specifications including 2/2 drivers/receivers, 250kbps data rate, 300mV receiver hysteresis, and 3V to 5.5V supply voltage. The extended operating temperature range (-40°C ~ 85°C) and active product status make it suitable for direct substitution in applications originally designed for TRS3232CPW.

Q: What is the difference between 300mV and 500mV receiver hysteresis? A: Receiver hysteresis determines the voltage differential required for the receiver to switch logic states. Both 300mV and 500mV hysteresis values are acceptable for RS232 transceiver operation. The 500mV specification provides improved noise immunity in electrically noisy environments.

Q: Are all substitute parts available in 16-TSSOP packaging? A: Yes. All substitute parts listed are available in 16-TSSOP (0.173", 4.40mm Width) surface mount packaging, ensuring mechanical and electrical compatibility with existing PCB designs.

Q: Which substitute part offers the highest data rate? A: ADM3232EARUZ and ADM3232EARUZ-REEL7 offer 460Kbps data rate, compared to 250kbps for the TRS3232CPW. Both parts maintain full RS232 protocol compliance and 3V to 5.5V supply voltage operation.

Q: What is the difference between ADM3232EARUZ and ADM3232EARUZ-REEL7? A: Both parts are electrically identical. The difference is packaging: ADM3232EARUZ is supplied in Tube packaging, while ADM3232EARUZ-REEL7 is supplied in Cut Tape (CT) & Digi-Reel® packaging. Selection depends on procurement and assembly process requirements.

Q: Can I use parts with extended operating temperature ranges in applications limited to 0°C ~ 70°C? A: Yes. Parts with extended operating temperature ranges (-40°C ~ 85°C) are fully compatible with applications requiring only 0°C ~ 70°C operation. The extended range provides additional design margin and long-term reliability assurance.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance, ensuring compatibility with RoHS-regulated procurement and assembly processes.

Q: What is the moisture sensitivity level (MSL) for these parts? A: Most substitute parts maintain MSL 1 (Unlimited), identical to the TRS3232CPW. ICL3232CVZ-T has MSL 3 (168 Hours), which requires controlled storage and handling during PCB assembly but remains compatible with standard manufacturing processes.

Q: Which substitute part is recommended for new designs? A: For new designs requiring long-term supply assurance and enhanced performance, SP3232EBEY-L/TR, ST3232EBTR, or ADM3232EARUZ-REEL7 are recommended. These parts offer active product status, extended operating temperature ranges, and high inventory availability.

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