MAX220ESE+ RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX220ESE+ is an active RS232 interface transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for full-duplex serial communication with 2 drivers and 2 receivers. This component operates within the 4.5V to 5.5V supply range and supports data rates up to 120 Kbps. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and protocol standards to ensure direct functional replacement in RS232 interface applications.

Key Parameters

Parameter	Specification
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex Mode	Full
Receiver Hysteresis	500 mV
Data Rate	120 Kbps
Supply Voltage Range	4.5V – 5.5V
Operating Temperature	-40°C to 85°C
Package Type	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MAX220ESE+ are classified into two categories based on parametric equivalence:

Parametric Equivalents (Direct Substitutes): Parts that match all critical electrical parameters including protocol (RS232), driver/receiver configuration (2/2), duplex mode (Full), receiver hysteresis (500 mV), data rate (120 Kbps), supply voltage (4.5V–5.5V), operating temperature range (-40°C to 85°C), and package type (16-SOIC). These parts are interchangeable without circuit modification.

Manufacturer Recommended Alternatives: Parts that maintain RS232 protocol, 2/2 driver/receiver configuration, full-duplex operation, and identical supply voltage and temperature ranges, but feature enhanced specifications such as higher receiver hysteresis (650 mV), increased data rate capability (230 Kbps or 200 Kbps), or alternative packaging formats (Cut Tape & Digi-Reel). These parts provide functional compatibility with potential performance improvements or packaging flexibility.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Duplex	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temp	Package	Packaging Format	Inventory (Pcs)
MAX220ESE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	Full	500 mV	120 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Tube	2,240
MAX202EESE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	Full	500 mV	120 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Tube	3,160
MAX202ESE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	Full	500 mV	120 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Tube	2,196
MAX232EESE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	Full	500 mV	120 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Tube	54,742
MAX232ESE+	Analog Devices Inc./Maxim Integrated	RS232	2/2	Full	500 mV	120 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Tube	1,869
ADM202EARNZ	Analog Devices Inc.	RS232	2/2	Full	650 mV	230 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Tube	7,155
ADM202EARNZ-REEL	Analog Devices Inc.	RS232	2/2	Full	650 mV	230 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Cut Tape & Digi-Reel	22,200
ADM202EARNZ-REEL7	Analog Devices Inc.	RS232	2/2	Full	650 mV	230 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Cut Tape & Digi-Reel	50,300
ADM232AARNZ	UMW	RS232	2/2	Full	Not specified	120 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Cut Tape & Digi-Reel	2,453
ADM232AARNZ-REEL	Analog Devices Inc.	RS232	2/2	Full	400 mV	200 Kbps	4.5V–5.5V	-40°C to 85°C	16-SOIC	Cut Tape & Digi-Reel	4,793

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the MAX220ESE+. Selection between parametric equivalents (MAX202EESE+, MAX202ESE+, MAX232EESE+, MAX232ESE+) and manufacturer-recommended alternatives (ADM202 and ADM232 series) depends on application requirements and packaging constraints.

For direct pin-for-pin replacement with identical electrical performance, the MAX202EESE+, MAX202ESE+, MAX232EESE+, and MAX232ESE+ parts are fully interchangeable. The MAX232EESE+ and MAX232ESE+ offer the highest inventory availability (54,742 and 1,869 units respectively), supporting supply chain continuity.

The ADM202 series (ADM202EARNZ, ADM202EARNZ-REEL, ADM202EARNZ-REEL7) provides enhanced data rate capability (230 Kbps versus 120 Kbps) and higher receiver hysteresis (650 mV versus 500 mV), with significantly higher inventory levels (7,155 to 50,300 units). These parts are suitable for applications requiring improved noise immunity or higher-speed serial communication while maintaining full RS232 protocol compliance and identical supply voltage and temperature specifications.

The ADM232AARNZ-REEL offers intermediate performance with 200 Kbps data rate and 400 mV receiver hysteresis, providing a middle-ground option between standard and enhanced specifications.

Frequently Asked Questions (FAQ)

Q: Can MAX202EESE+ directly replace MAX220ESE+ without circuit modification?

A: Yes. Both parts share identical electrical specifications: RS232 protocol, 2/2 driver/receiver configuration, full-duplex operation, 500 mV receiver hysteresis, 120 Kbps data rate, 4.5V–5.5V supply voltage, -40°C to 85°C operating temperature, and 16-SOIC package. Pin-for-pin substitution is supported.

Q: What is the difference between ADM202EARNZ and ADM202EARNZ-REEL?

A: Both parts are electrically identical with 230 Kbps data rate and 650 mV receiver hysteresis. The primary difference is packaging format: ADM202EARNZ is supplied in Tube format, while ADM202EARNZ-REEL and ADM202EARNZ-REEL7 are supplied in Cut Tape & Digi-Reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Can ADM202EARNZ be used in place of MAX220ESE+ for higher-speed applications?

A: Yes, with performance enhancement. The ADM202EARNZ maintains full RS232 protocol compliance, 2/2 driver/receiver configuration, identical supply voltage and temperature ranges, and 16-SOIC package compatibility. The enhanced 230 Kbps data rate and 650 mV receiver hysteresis provide improved performance for applications exceeding 120 Kbps requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the regulatory and environmental specifications of the MAX220ESE+.

Q: What is the significance of receiver hysteresis in RS232 transceiver selection?

A: Receiver hysteresis determines the voltage differential required for input signal transitions, affecting noise immunity. The MAX220ESE+ specifies 500 mV hysteresis. Substitute parts with higher hysteresis (650 mV in ADM202 series, 400 mV in ADM232AARNZ-REEL) provide enhanced noise rejection in electrically noisy environments, while lower hysteresis may increase susceptibility to signal noise.

Q: Is the ADM232AARNZ (UMW manufacturer) equivalent to Analog Devices versions?

A: The ADM232AARNZ maintains RS232 protocol, 2/2 driver/receiver configuration, full-duplex operation, 120 Kbps data rate, and identical supply voltage and temperature specifications. However, receiver hysteresis is not specified in the provided data. Verification of hysteresis specification and manufacturer compatibility with your supply chain is recommended before selection.

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