TRS3232IPW RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS3232IPW 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 procurement. The TRS3232IPW operates across a 3V to 5.5V supply voltage range with a 250 kbps data rate and -40°C to 85°C operating temperature range, serving as a standard interface component for RS232 serial communication applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRS3232IPW
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	300 mV
Data Rate	250 kbps
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 eligibility for the TRS3232IPW is determined by the following critical parameters:

Primary Matching Criteria:

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

Secondary Compatibility Parameters:

Receiver Hysteresis: 300 mV (preferred) or 500 mV (acceptable with design verification)
Data Rate: 250 kbps (minimum requirement)
Operating Temperature: -40°C ~ 85°C (preferred) or 0°C ~ 70°C (acceptable for limited temperature range applications)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 or 3

Substitute parts are grouped into two categories: parametric equivalents (matching all primary criteria with identical electrical specifications) and manufacturer-recommended alternatives (meeting primary criteria with enhanced or modified secondary specifications).

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Duplex	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temp	Package	Product Status
TRS3232IPW	Texas Instruments	RS232	2/2	Full	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Obsolete
MAX3232EIPW	Texas Instruments	RS232	2/2	Full	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Obsolete
MAX3232EIPWG4	Texas Instruments	RS232	2/2	Full	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Obsolete
ADM3232EARUZ	Analog Devices Inc.	RS232	2/2	Full	500 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ADM3232EARUZ-REEL7	Analog Devices Inc.	RS232	2/2	Full	500 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ICL3232CVZ	Renesas Electronics Corporation	RS232	2/2	Full	300 mV	250 kbps	3V ~ 5.5V	0°C ~ 70°C	16-TSSOP	Active
ICL3232CVZ-T	Renesas Electronics Corporation	RS232	2/2	Full	300 mV	250 kbps	3V ~ 5.5V	0°C ~ 70°C	16-TSSOP	Active
ICL3232ECV-16Z	Renesas Electronics Corporation	RS232	2/2	Full	500 mV	250 kbps	3V ~ 5.5V	0°C ~ 70°C	16-TSSOP	Active
ICL3232EIAZ	Renesas Electronics Corporation	RS232	2/2	Full	500 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-SSOP	Active

Engineering Selection Recommendations

Parametric Equivalents (Direct Replacement):

MAX3232EIPW and MAX3232EIPWG4 are parametric equivalents to the TRS3232IPW, matching all electrical and mechanical specifications including 300 mV receiver hysteresis, 250 kbps data rate, and -40°C to 85°C operating temperature range. Both parts are obsolete but remain available in inventory. These parts provide the closest functional match for direct substitution in existing designs.

Active Manufacturer-Recommended Alternatives:

ADM3232EARUZ and ADM3232EARUZ-REEL7 (Analog Devices Inc.) are active production parts offering enhanced performance with 460 kbps data rate capability and 500 mV receiver hysteresis. These parts maintain identical supply voltage range (3V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 16-TSSOP package compatibility. The higher data rate and receiver hysteresis provide improved noise margin in applications requiring extended communication distances or electrically noisy environments.

ICL3232CVZ and ICL3232CVZ-T (Renesas Electronics Corporation) are active production alternatives with identical electrical specifications to the TRS3232IPW (300 mV hysteresis, 250 kbps data rate) but with a reduced operating temperature range of 0°C to 70°C. These parts are suitable for commercial and industrial applications within this temperature window.

ICL3232ECV-16Z and ICL3232EIAZ (Renesas Electronics Corporation) are active production parts with 500 mV receiver hysteresis and extended operating temperature capability. ICL3232EIAZ maintains the full -40°C to 85°C temperature range but uses a 16-SSOP package (0.209", 5.30mm Width) instead of 16-TSSOP, requiring PCB layout modification.

All substitute parts carry ROHS3 compliance and EAR99 export classification matching the original part.

Frequently Asked Questions (FAQ)

Q: Can MAX3232EIPW directly replace TRS3232IPW without design changes?

A: Yes. MAX3232EIPW is a parametric equivalent with identical electrical specifications, supply voltage range, operating temperature range, and 16-TSSOP package. No design modifications are required.

Q: What is the difference between ADM3232EARUZ and the original TRS3232IPW?

A: ADM3232EARUZ maintains compatibility across all primary criteria (RS232 protocol, 2/2 configuration, full duplex, 3V ~ 5.5V supply, 16-TSSOP package, -40°C ~ 85°C operating range). Secondary differences include 500 mV receiver hysteresis (versus 300 mV) and 460 kbps data rate capability (versus 250 kbps). The higher hysteresis and data rate represent performance enhancements suitable for applications requiring improved noise immunity or higher communication speeds.

Q: Why do some alternatives have a 0°C to 70°C operating temperature range instead of -40°C to 85°C?

A: Operating temperature range is determined by the semiconductor manufacturing process and device qualification. ICL3232CVZ and ICL3232CVZ-T are qualified for 0°C to 70°C, making them suitable for commercial and industrial environments within this range. Applications requiring -40°C to 85°C operation must use parts with that specification, such as ADM3232EARUZ or ICL3232EIAZ.

Q: What is the difference between ICL3232CVZ and ICL3232CVZ-T?

A: Both parts are electrically identical. The difference is packaging: ICL3232CVZ is supplied in Tube packaging, while ICL3232CVZ-T is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on procurement and assembly requirements.

Q: Can ICL3232EIAZ replace TRS3232IPW in all applications?

A: ICL3232EIAZ maintains the full -40°C to 85°C operating temperature range and 500 mV receiver hysteresis. However, it uses a 16-SSOP package (0.209", 5.30mm Width) instead of 16-TSSOP (0.173", 4.40mm Width). PCB layout modification is required to accommodate the different package footprint and pin spacing.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status, matching the original TRS3232IPW specification.

Q: Which substitute part offers the best long-term availability?

A: ADM3232EARUZ, ADM3232EARUZ-REEL7, ICL3232CVZ, ICL3232CVZ-T, ICL3232ECV-16Z, and ICL3232EIAZ are all active production parts with established supply chains. Parametric equivalents MAX3232EIPW and MAX3232EIPWG4 are obsolete and subject to inventory depletion.

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