MAX202ECWE RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX202ECWE is a 2/2 full-duplex RS232 transceiver in 16-SOIC surface mount packaging manufactured by Analog Devices Inc./Maxim Integrated. This interface IC operates at 4.5V to 5.5V supply voltage with a 120 kbps data rate and 500 mV receiver hysteresis, designed for serial communication applications requiring RS232 protocol compliance.

The MAX202ECWE is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support long-term product support requirements. Active alternatives with identical or enhanced electrical and mechanical specifications are available from the same manufacturer and qualified third-party vendors.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX202ECWE
Manufacturer	Analog Devices Inc./Maxim Integrated
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120 kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.295", 7.50mm Width)
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX202ECWE is determined by strict equivalence across the following critical parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2 configuration
Duplex Mode: Full
Receiver Hysteresis: 500 mV
Data Rate: 120 kbps minimum
Supply Voltage Range: 4.5V ~ 5.5V
Package Type: 16-SOIC surface mount
Mounting Type: Surface Mount

Substitute parts are categorized as follows:

Parametric Equivalents (Maxim Integrated): MAX201CWE+, MAX202CWE+, MAX202ECWE+, MAX220CWE+, MAX232CWE+, and MAX232ECWE+ maintain identical electrical specifications and 16-SOIC packaging. These parts differ primarily in product status (active vs. obsolete) and RoHS compliance certification.

Direct Manufacturer Equivalent (Renesas): HIN202EIBZ-T provides identical 2/2 RS232 transceiver functionality in 16-SOIC packaging with enhanced data rate (230 kbps) and extended operating temperature range (-40°C to 85°C).

Upgrade Option (Texas Instruments): MAX202IDWR offers identical electrical specifications with extended operating temperature range (-40°C to 85°C) and active product status.

Manufacturer Recommended (Analog Devices): ADM202EARWZ and ADM202EARWZ-REEL provide enhanced performance with 230 kbps data rate, 650 mV receiver hysteresis, and extended temperature range while maintaining full RS232 2/2 transceiver functionality.

Parameter Comparison

Part Number	Manufacturer	Product Status	Protocol	Drivers/Receivers	Data Rate	Supply Voltage	Operating Temp	Package	RoHS Status	Inventory
MAX202ECWE	Analog Devices/Maxim	Obsolete	RS232	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Non-compliant	7800 Pcs
MAX201CWE+	Analog Devices/Maxim	Active	RS232	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	ROHS3 Compliant	777 Pcs
MAX202CWE+	Analog Devices/Maxim	Active	RS232	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	ROHS3 Compliant	2200 Pcs
MAX202ECWE+	Analog Devices/Maxim	Active	RS232	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	ROHS3 Compliant	2200 Pcs
MAX220CWE+	Analog Devices/Maxim	Active	RS232	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	ROHS3 Compliant	1153 Pcs
MAX232CWE+	Analog Devices/Maxim	Active	RS232	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	ROHS3 Compliant	29246 Pcs
MAX232ECWE+	Analog Devices/Maxim	Active	RS232	2/2	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	ROHS3 Compliant	2232 Pcs
HIN202EIBZ-T	Renesas Electronics	Active	RS232	2/2	230 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	2098 Pcs
MAX202IDWR	Texas Instruments	Active	RS232	2/2	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	4767 Pcs
ADM202EARWZ	Analog Devices	Active	RS232	2/2	230 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	1600 Pcs
ADM202EARWZ-REEL	Analog Devices	Active	RS232	2/2	230 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant	2021 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): MAX202CWE+, MAX202ECWE+, MAX220CWE+, MAX232CWE+, and MAX232ECWE+ are active-status equivalents with ROHS3 compliance certification. These parts maintain the original 0°C to 70°C operating temperature range and 120 kbps data rate. MAX232CWE+ offers the highest inventory availability (29,246 pcs) among parametric equivalents.

For Extended Temperature Range Applications: MAX202IDWR (Texas Instruments) and ADM202EARWZ/ADM202EARWZ-REEL (Analog Devices) extend the operating temperature range to -40°C to 85°C while maintaining 4.5V to 5.5V supply compatibility. Both are ROHS3 compliant and active products.

For Enhanced Data Rate Performance: HIN202EIBZ-T (Renesas) and ADM202EARWZ/ADM202EARWZ-REEL (Analog Devices) support 230 kbps data rate, doubling the original specification. These parts are suitable for applications requiring higher serial communication speeds within the same 16-SOIC package footprint.

For RoHS Compliance Requirement: All substitute parts listed carry ROHS3 compliance certification, addressing regulatory requirements where the original MAX202ECWE does not comply.

Frequently Asked Questions (FAQ)

Q: Can MAX202CWE+ directly replace MAX202ECWE in existing designs? A: Yes. MAX202CWE+ maintains identical electrical specifications (2/2 RS232 transceiver, 120 kbps, 4.5V-5.5V supply, 0°C-70°C operating range) and 16-SOIC packaging. The primary difference is active product status and ROHS3 compliance certification.

Q: What is the difference between MAX202ECWE+ and MAX202CWE+? A: Both are active Maxim Integrated products with identical electrical and mechanical specifications. The difference lies in packaging designation (tube vs. reel) and internal manufacturing process variants. Both are electrically interchangeable.

Q: Is HIN202EIBZ-T a suitable substitute if my application requires higher data rates? A: HIN202EIBZ-T supports 230 kbps data rate compared to the original 120 kbps specification. It maintains 2/2 RS232 transceiver functionality, 4.5V-5.5V supply voltage, and 16-SOIC packaging. Extended operating temperature (-40°C to 85°C) is an additional benefit for industrial applications.

Q: Why does ADM202EARWZ have different receiver hysteresis (650 mV vs. 500 mV)? A: ADM202EARWZ is a manufacturer-recommended upgrade with enhanced specifications. The 650 mV receiver hysteresis provides improved noise immunity compared to the original 500 mV specification, while maintaining full RS232 2/2 transceiver compatibility.

Q: Are all substitute parts available in the same 16-SOIC package? A: Yes. All listed substitute parts use 16-SOIC (0.295", 7.50mm Width) surface mount packaging, ensuring mechanical and footprint compatibility with existing PCB designs.

Q: Which substitute offers the best inventory availability? A: MAX232CWE+ has the highest inventory level at 29,246 pcs, followed by MAX202IDWR at 4,767 pcs. Both are active products with ROHS3 compliance.

Q: Can I use MAX202IDWR (Texas Instruments) in a design originally specified for MAX202ECWE? A: Yes. MAX202IDWR maintains identical electrical specifications (2/2 RS232, 120 kbps, 4.5V-5.5V) and 16-SOIC packaging. The extended operating temperature range (-40°C to 85°C) provides additional margin for industrial or automotive environments.

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