SP3226EEA-L RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP3226EEA-L is a full-duplex RS232 transceiver manufactured by MaxLinear, Inc., configured as a 1/1 driver/receiver in a 16-SSOP surface mount package. This component operates across a 3V to 5.5V supply range with a 250 kbps data rate and is classified as obsolete. Due to its obsolete status and limited current availability (5,299 pieces in stock), identifying functionally equivalent active alternatives is necessary for design continuity and long-term supply chain reliability.

Key Parameters

Parameter	Value
Manufacturer Part Number	SP3226EEA-L
Manufacturer	MaxLinear, Inc.
Product Category	Interface - RS232 Transceiver
Type	Transceiver
Protocol	RS232
Driver/Receiver Configuration	1/1 (Full Duplex)
Package Type	16-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
Supply Voltage Range	3V ~ 5.5V
Operating Temperature Range	-40°C ~ 85°C
Data Rate	250 kbps
Receiver Hysteresis	500 mV
Moisture Sensitivity Level (MSL)	2 (1 Year)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SP3226EEA-L is determined by strict equivalence across the following critical parameters:

Protocol: RS232
Configuration: 1/1 Driver/Receiver (Full Duplex)
Package: 16-SSOP surface mount
Supply Voltage: 3V ~ 5.5V (or compatible subset)
Data Rate: 250 kbps minimum
Receiver Hysteresis: 500 mV
Operating Temperature: -40°C minimum to 85°C minimum
Mounting Type: Surface Mount

All substitute parts listed maintain these electrical and mechanical specifications. Packaging format (Tube, Tape & Reel, Cut Tape) does not affect functional equivalence but may influence procurement and assembly workflows.

Parameter Comparison

Part Number	Manufacturer	Product Status	Supply Voltage	Operating Temp	Data Rate	Receiver Hysteresis	Package	Packaging Format	RoHS Status	MSL
SP3226EEA-L	MaxLinear, Inc.	Obsolete	3V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	—	—	2 (1 Year)
ICL3226EIAZ-T	Renesas Electronics	Active	3V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	Tape & Reel	ROHS3 Compliant	2 (1 Year)
ICL3226IAZ-T	Renesas Electronics	Active	3V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	Tape & Reel	ROHS3 Compliant	2 (1 Year)
MAX221ECAE+	Analog Devices Inc./Maxim Integrated	Active	4.5V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	Tube	ROHS3 Compliant	1 (Unlimited)
MAX221ECAE+T	Analog Devices Inc./Maxim Integrated	Active	4.5V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	Cut Tape & Digi-Reel	ROHS3 Compliant	1 (Unlimited)
MAX221EEAE+	Analog Devices Inc./Maxim Integrated	Active	4.5V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	Tube	ROHS3 Compliant	1 (Unlimited)
MAX221EEAE+T	Analog Devices Inc./Maxim Integrated	Active	4.5V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	Tape & Reel	ROHS3 Compliant	1 (Unlimited)
MAX3221EIDBR	Texas Instruments	Active	3V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	Cut Tape & Digi-Reel	ROHS3 Compliant	1 (Unlimited)
MAX3226EAAE+	Analog Devices Inc./Maxim Integrated	Active	3V ~ 5.5V	-40°C ~ 125°C	250 kbps	500 mV	16-SSOP	Tube	ROHS3 Compliant	1 (Unlimited)
MAX3226EAAE+T	Analog Devices Inc./Maxim Integrated	Active	3V ~ 5.5V	-40°C ~ 125°C	250 kbps	500 mV	16-SSOP	Tape & Reel	ROHS3 Compliant	1 (Unlimited)
MAX3226EAE+T	Analog Devices Inc./Maxim Integrated	Active	3V ~ 5.5V	-40°C ~ 85°C	250 kbps	500 mV	16-SSOP	Cut Tape & Digi-Reel	ROHS3 Compliant	1 (Unlimited)

Engineering Selection Recommendations

All listed substitute parts are classified as active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and long-term availability.

For applications requiring extended operating temperature range (-40°C to 125°C), MAX3226EAAE+ and MAX3226EAAE+T are suitable alternatives.

For applications with supply voltage constrained to 4.5V minimum, MAX221 series parts (MAX221ECAE+, MAX221ECAE+T, MAX221EEAE+, MAX221EEAE+T) are functionally equivalent.

For applications requiring full 3V to 5.5V supply voltage compatibility, ICL3226EIAZ-T, ICL3226IAZ-T, MAX3221EIDBR, MAX3226EAAE+, MAX3226EAAE+T, and MAX3226EAE+T maintain the original specification envelope.

Packaging format selection (Tube, Tape & Reel, Cut Tape) should align with assembly and procurement requirements without affecting electrical performance.

Frequently Asked Questions (FAQ)

Q: Can MAX221 series parts replace SP3226EEA-L in all applications?

A: MAX221 series parts are electrically equivalent but operate at a minimum supply voltage of 4.5V, compared to the SP3226EEA-L minimum of 3V. Substitution is valid only for applications where the supply voltage remains at or above 4.5V throughout operation.

Q: What is the difference between ICL3226EIAZ-T and ICL3226IAZ-T?

A: Both parts are manufactured by Renesas Electronics and maintain identical electrical specifications. The difference lies in internal temperature grade classification. Both are suitable substitutes for the SP3226EEA-L.

Q: Are MAX3226EAAE+ and MAX3226EAE+T interchangeable?

A: Both parts are functionally equivalent RS232 transceivers. MAX3226EAAE+ operates to 125°C, while MAX3226EAE+T operates to 85°C. Selection depends on application temperature requirements. Packaging format differs (Tube vs. Cut Tape & Digi-Reel).

Q: Does packaging format affect electrical performance?

A: No. Tube, Tape & Reel, and Cut Tape & Digi-Reel formats contain identical die and electrical specifications. Format selection is determined by assembly process and procurement workflow.

Q: Why is MSL (Moisture Sensitivity Level) different across substitute parts?

A: MSL differences reflect manufacturing process variations between suppliers. MSL 1 (Unlimited shelf life) provides greater flexibility than MSL 2 (1 Year). Both are acceptable for standard PCB assembly processes.

Q: Which substitute offers the best long-term availability?

A: Texas Instruments MAX3221EIDBR and Analog Devices MAX3226 series parts represent major manufacturers with established product longevity. All listed substitutes are classified as active products.

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