MAX3232IPW Equivalent & Substitute Parts

Part Overview

The MAX3232IPW is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments, housed in a 16-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MAX3232IPW operates across a 3V to 5.5V supply range with a 250 kbps data rate and 300 mV receiver hysteresis, suitable for legacy RS232 communication applications requiring full duplex operation.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX3232IPW
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)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MAX3232IPW 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
Voltage Supply Range: 3V ~ 5.5V
Package Type: 16-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Allowable Variations:

Receiver Hysteresis: 300 mV, 400 mV, or 500 mV (all acceptable for RS232 full-duplex operation)
Data Rate: 250 kbps or higher (backward compatible)
Operating Temperature: -40°C ~ 85°C or 0°C ~ 70°C (both acceptable depending on application requirements)
Product Status: Active or Obsolete (both acceptable for substitution)
Packaging Format: Tube, Cut Tape (CT) & Digi-Reel®, or equivalent

Substitute parts are grouped into two categories: parametric equivalents from Texas Instruments and manufacturer-recommended alternatives from Analog Devices Inc. and Renesas Electronics Corporation.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Duplex	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temp	Package	Product Status
MAX3232IPW	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
ADM3202ARUZ	Analog Devices Inc.	RS232	2/2	Full	400 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ADM3202ARUZ-REEL	Analog Devices Inc.	RS232	2/2	Full	400 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
ADM3202ARUZ-REEL7	Analog Devices Inc.	RS232	2/2	Full	400 mV	460 kbps	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Active
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
ICL3232ECAZ	Renesas Electronics Corporation	RS232	2/2	Full	500 mV	250 kbps	3V ~ 5.5V	0°C ~ 70°C	16-SSOP	Active

Engineering Selection Recommendations

Texas Instruments Parametric Equivalents (MAX3232EIPW, MAX3232EIPWG4): These parts maintain identical electrical specifications to the MAX3232IPW with matching receiver hysteresis (300 mV) and data rate (250 kbps). Both are obsolete but remain suitable for applications requiring exact parameter matching. Inventory availability is documented at 2346 and 1256 units respectively.

Analog Devices Inc. Alternatives (ADM3202 and ADM3232 Series): The ADM3202ARUZ series offers active product status with enhanced data rate performance (460 kbps) and increased receiver hysteresis (400 mV). The ADM3232EARUZ series provides 500 mV receiver hysteresis with the same enhanced data rate. All Analog Devices variants maintain the required 16-TSSOP package and -40°C ~ 85°C operating temperature range. Multiple packaging options (Tube, Cut Tape & Digi-Reel®) are available with substantial inventory levels.

Renesas Electronics Corporation Alternatives (ICL3232 Series): The ICL3232CVZ and ICL3232CVZ-T maintain exact electrical specifications matching the MAX3232IPW (300 mV hysteresis, 250 kbps data rate) with active product status. Operating temperature range is restricted to 0°C ~ 70°C. The ICL3232ECAZ variant uses a 16-SSOP package (0.209", 5.30mm Width) instead of 16-TSSOP and features 500 mV receiver hysteresis, requiring mechanical design verification before substitution.

All substitute parts maintain ROHS3 compliance and EAR99 classification consistent with the original MAX3232IPW.

Frequently Asked Questions (FAQ)

Q: Can I substitute MAX3232EIPW for MAX3232IPW in my design? A: Yes. The MAX3232EIPW is a parametric equivalent with identical electrical specifications (300 mV receiver hysteresis, 250 kbps data rate, 3V ~ 5.5V supply, -40°C ~ 85°C operating range) and 16-TSSOP package. Both are obsolete products from Texas Instruments.

Q: What is the difference between ADM3202ARUZ and ADM3232EARUZ? A: Both are active Analog Devices alternatives with 460 kbps data rate and 16-TSSOP package. The ADM3202ARUZ features 400 mV receiver hysteresis, while the ADM3232EARUZ features 500 mV receiver hysteresis. Selection depends on application noise immunity requirements.

Q: Why does ICL3232ECAZ have a different package (16-SSOP) than the others? A: The ICL3232ECAZ uses a 16-SSOP package (0.209", 5.30mm Width) compared to the 16-TSSOP package (0.173", 4.40mm Width) of the MAX3232IPW. This represents a mechanical difference requiring PCB layout and footprint verification before substitution.

Q: Can I use ICL3232CVZ if my application requires -40°C operation? A: No. The ICL3232CVZ operating temperature range is 0°C ~ 70°C, which does not cover the -40°C lower limit of the MAX3232IPW. For extended temperature applications, use Analog Devices alternatives (ADM3202 or ADM3232 series) or Texas Instruments equivalents.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance consistent with the MAX3232IPW.

Q: What packaging options are available for the Analog Devices alternatives? A: Analog Devices offers multiple packaging formats: Tube (ADM3202ARUZ, ADM3232EARUZ) and Cut Tape & Digi-Reel® (ADM3202ARUZ-REEL, ADM3202ARUZ-REEL7, ADM3232EARUZ-REEL7). Renesas offers Tube (ICL3232CVZ, ICL3232ECAZ) and Cut Tape & Digi-Reel® (ICL3232CVZ-T) formats.

Q: Is the higher data rate (460 kbps) of Analog Devices parts backward compatible with 250 kbps applications? A: Yes. The 460 kbps data rate specification indicates maximum capability. Analog Devices alternatives operate at lower data rates without performance degradation, making them suitable for 250 kbps legacy applications.

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