MAX211EEAI Equivalent & Substitute Parts

Part Overview

The MAX211EEAI is a 4/5 full-duplex RS232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 28-SSOP surface-mount package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for new designs and ongoing production requirements. The part operates across a 4.5V to 5.5V supply range with a maximum data rate of 120 kbps and maintains full RS232 protocol compliance with 500 mV receiver hysteresis.

Key Parameters

Parameter	Specification
Manufacturer Part Number	MAX211EEAI
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Interface
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/5
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120 kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	28-SSOP (0.209", 5.30mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX211EEAI is determined by strict equivalence across the following critical parameters:

Protocol: RS232
Number of Drivers/Receivers: 4/5
Duplex Mode: Full
Data Rate: 120 kbps
Voltage Supply Range: 4.5V ~ 5.5V
Operating Temperature Range: -40°C ~ 85°C
Package Type: 28-SSOP (0.209", 5.30mm Width)
Mounting Type: Surface Mount

Substitute parts are grouped into three categories:

Parametric Equivalents (Active Status): Parts sharing identical electrical specifications and package footprint with active product status. These include MAX211EAI+, MAX211EEAI+, MAX213EAI+, MAX213EEAI+, MAX241EAI+, and MAX241EEAI+. All are manufactured by Analog Devices Inc./Maxim Integrated and comply with ROHS3 standards.

Direct Equivalent (Alternative Manufacturer): MAX211IDBR, sourced from Texas Instruments, maintains full parametric equivalence with active product status and ROHS3 compliance.

Manufacturer-Recommended Alternatives: ADM211ARSZ, ADM211ARSZ-REEL, and ADM211EARSZ are Analog Devices Inc. alternatives with a single parameter variance: receiver hysteresis of 650 mV versus the original 500 mV specification. These parts remain functionally compatible within RS232 protocol tolerances and carry active product status with ROHS3 compliance.

Parameter Comparison

Part Number	Manufacturer	Product Status	Drivers/Receivers	Receiver Hysteresis (mV)	Data Rate (kbps)	Supply Voltage	Operating Temp (°C)	Package	RoHS Status
MAX211EEAI	Analog Devices/Maxim	Obsolete	4/5	500	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	Non-compliant
MAX211EAI+	Analog Devices/Maxim	Active	4/5	500	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
MAX211EEAI+	Analog Devices/Maxim	Active	4/5	500	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
MAX213EAI+	Analog Devices/Maxim	Active	4/5	500	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
MAX213EEAI+	Analog Devices/Maxim	Active	4/5	500	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
MAX241EAI+	Analog Devices/Maxim	Active	4/5	500	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
MAX241EEAI+	Analog Devices/Maxim	Active	4/5	500	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
MAX211IDBR	Texas Instruments	Active	4/5	500	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
ADM211ARSZ	Analog Devices	Active	4/5	650	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
ADM211ARSZ-REEL	Analog Devices	Active	4/5	650	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant
ADM211EARSZ	Analog Devices	Active	4/5	650	120	4.5V ~ 5.5V	-40 ~ 85	28-SSOP	ROHS3 Compliant

Engineering Selection Recommendations

For new designs and production transitions, the MAX211EAI+, MAX211EEAI+, MAX213EAI+, MAX213EEAI+, MAX241EAI+, and MAX241EEAI+ represent direct parametric equivalents with active product status and ROHS3 compliance. These parts eliminate obsolescence risk while maintaining identical electrical and mechanical specifications.

The MAX211IDBR from Texas Instruments provides an alternative source with equivalent specifications and active status, suitable for supply chain diversification.

The ADM211ARSZ, ADM211ARSZ-REEL, and ADM211EARSZ series from Analog Devices offer functional compatibility with a 650 mV receiver hysteresis specification, compared to the original 500 mV. This variance remains within RS232 protocol tolerances and does not compromise signal integrity in standard applications. These parts carry active product status and ROHS3 compliance.

All substitute parts maintain the 28-SSOP package footprint, enabling direct PCB layout compatibility without redesign. Selection should prioritize parts with active product status to ensure long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can MAX211EAI+ be used as a direct replacement for MAX211EEAI?

A: Yes. MAX211EAI+ is a parametric equivalent with identical electrical specifications (4/5 drivers/receivers, 500 mV hysteresis, 120 kbps data rate, 4.5V–5.5V supply, -40°C to 85°C operating range) and the same 28-SSOP package. The primary difference is product status: MAX211EAI+ is active while MAX211EEAI is obsolete. Both are manufactured by Analog Devices Inc./Maxim Integrated.

Q: What is the difference between MAX211EEAI+ and MAX213EEAI+?

A: Both parts share identical electrical parameters and package specifications. The difference lies in the base product number designation (MAX211 versus MAX213), which reflects internal design variants within the Maxim product line. Both are functionally equivalent for RS232 transceiver applications with 4/5 driver/receiver configuration.

Q: Can ADM211ARSZ replace MAX211EEAI despite the 650 mV hysteresis difference?

A: Yes, with engineering consideration. ADM211ARSZ maintains all critical parameters except receiver hysteresis, which is 650 mV versus the original 500 mV. This variance remains within RS232 protocol specifications and does not compromise signal integrity in standard applications. The higher hysteresis provides increased noise immunity in electrically noisy environments.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (MAX211EAI+, MAX211EEAI+, MAX213EAI+, MAX213EEAI+, MAX241EAI+, MAX241EEAI+, MAX211IDBR, ADM211ARSZ, ADM211ARSZ-REEL, ADM211EARSZ) are ROHS3 compliant. The original MAX211EEAI is RoHS non-compliant, making the transition to active equivalents necessary for regulatory compliance in new designs.

Q: Does package type vary among substitute parts?

A: No. All substitute parts use the 28-SSOP (0.209", 5.30mm Width) surface-mount package, ensuring direct PCB footprint compatibility without layout modifications.

Q: What is the difference between MAX211IDBR and the Maxim equivalents?

A: MAX211IDBR is sourced from Texas Instruments rather than Analog Devices/Maxim. It maintains identical electrical specifications and package type. Selection between manufacturers depends on supply chain strategy and procurement preferences.

Q: Why are there multiple MAX211 and MAX241 variants with different suffixes?

A: Suffix variations (EAI+, EEAI+) indicate different temperature grades, packaging formats, or manufacturing date codes within the same base product family. All listed variants maintain the same core electrical specifications and are functionally interchangeable for this application.

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