MAX3232IPWRG4 RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX3232IPWRG4 is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-TSSOP surface mount package. This part is currently discontinued at DiGi Electronics. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications requiring RS232 serial communication interfaces.

Key Parameters

Parameter	MAX3232IPWRG4
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	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution eligibility for the MAX3232IPWRG4 is determined by the following critical parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Voltage Supply Range: 3V ~ 5.5V
Operating Temperature Range: -40°C ~ 85°C
Package / Case: 16-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Parametric Equivalents (Texas Instruments MAX3232 Series): Parts that maintain identical electrical specifications and package configuration. These include MAX3232EIPWR, MAX3232EIPWRQ1, MAX3232IPWR, TRS3232EIPWR, and TRS3232IPWR. All are active products with full parameter compatibility.

Manufacturer Recommended Alternatives (Analog Devices ADM3202/ADM3232 Series): Parts that meet core functional requirements (2/2 RS232 transceiver, 16-TSSOP package, 3V ~ 5.5V supply, -40°C ~ 85°C operating range) with variations in receiver hysteresis and data rate specifications.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temp	Package	Product Status
MAX3232IPWRG4	Texas Instruments	RS232	2/2	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Discontinued
MAX3232EIPWR	Texas Instruments	RS232	2/2	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
MAX3232EIPWRQ1	Texas Instruments	RS232	2/2	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active (Automotive)
MAX3232IPWR	Texas Instruments	RS232	2/2	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
TRS3232EIPWR	Texas Instruments	RS232	2/2	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
TRS3232IPWR	Texas Instruments	RS232	2/2	300 mV	250 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ADM3202ARUZ	Analog Devices Inc.	RS232	2/2	400 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ADM3202ARUZ-REEL	Analog Devices Inc.	RS232	2/2	400 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ADM3202ARUZ-REEL7	Analog Devices Inc.	RS232	2/2	400 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ADM3232EARUZ	Analog Devices Inc.	RS232	2/2	500 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ADM3232EARUZ-REEL7	Analog Devices Inc.	RS232	2/2	500 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active

Engineering Selection Recommendations

Primary Substitutes (Texas Instruments MAX3232 Series): MAX3232EIPWR, MAX3232IPWR, TRS3232EIPWR, and TRS3232IPWR are direct parametric equivalents with identical electrical specifications. All are active products with ROHS3 compliance and MSL 1 rating. These parts provide the most direct replacement path with no design modifications required.

Automotive-Grade Alternative: MAX3232EIPWRQ1 is qualified to AEC-Q100 automotive standards and maintains identical electrical parameters. This variant is suitable for applications requiring automotive-grade components.

Analog Devices Alternatives: ADM3202 and ADM3232 series parts meet core functional requirements with higher receiver hysteresis (400 mV and 500 mV respectively) and increased data rate capability (460 kbps). These parts are suitable for applications where enhanced noise immunity or higher data rates are beneficial. All Analog Devices alternatives are active products with ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can MAX3232EIPWR directly replace MAX3232IPWRG4? A: Yes. MAX3232EIPWR is a parametric equivalent with identical electrical specifications, package configuration, and operating parameters. No design modifications are required.

Q: What is the difference between MAX3232EIPWR and MAX3232EIPWRQ1? A: MAX3232EIPWRQ1 is qualified to AEC-Q100 automotive standards. Electrical specifications and package are identical. Selection depends on automotive qualification requirements.

Q: Can Analog Devices ADM3202 or ADM3232 parts be used as substitutes? A: Yes, with design consideration. ADM3202 and ADM3232 series maintain the same 2/2 RS232 transceiver configuration, 16-TSSOP package, and supply voltage range. However, receiver hysteresis and data rate differ. ADM3202 has 400 mV hysteresis and 460 kbps data rate; ADM3232 has 500 mV hysteresis and 460 kbps data rate. These differences may affect noise immunity and communication speed characteristics.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What packaging options are available for substitute parts? A: Texas Instruments MAX3232 and TRS3232 variants are available in Cut Tape (CT) and Digi-Reel packaging. Analog Devices ADM3202 and ADM3232 parts are available in Tube or Cut Tape (CT) and Digi-Reel packaging options.

Q: Which substitute has the highest inventory availability? A: TRS3232IPWR has the highest inventory at 253,916 pieces. MAX3232IPWR has 71,800 pieces. Both are suitable direct replacements.

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