MAX3245EEAI RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX3245EEAI is a full-duplex RS232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, configured with 3 drivers and 5 receivers in a 28-SSOP surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement continuity. The part operates across 3V to 5.5V supply voltage with a 1Mbps data rate and 500mV receiver hysteresis, making it suitable for legacy RS232 communication applications requiring dual-voltage operation.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX3245EEAI
Manufacturer	Analog Devices Inc./Maxim Integrated
Product Category	Interface - RS232 Transceiver
Type	Transceiver
Protocol	RS232
Driver/Receiver Configuration	3 Drivers / 5 Receivers
Duplex Mode	Full
Data Rate	1 Mbps
Supply Voltage Range	3V to 5.5V
Operating Temperature Range	-40°C to 85°C
Receiver Hysteresis	500 mV
Package Type	28-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS Non-Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX3245EEAI is determined by strict equivalence across the following critical parameters:

Protocol: RS232
Driver/Receiver Configuration: 3/5
Duplex Mode: Full
Package Type: 28-SSOP
Mounting Type: Surface Mount
Supply Voltage Range: 3V to 5.5V
Operating Temperature Range: -40°C to 85°C
Receiver Hysteresis: 500 mV

Substitute parts are grouped into two categories:

Parametric Equivalents (Active Status): Parts that match all electrical and mechanical parameters of the MAX3245EEAI with active product status and improved compliance certifications.

Direct Substitutes (Functional Equivalents): Parts that maintain the same 3/5 driver/receiver configuration, RS232 protocol, and 28-SSOP package but may have variations in data rate (250kbps vs. 1Mbps) or moisture sensitivity level. These parts are functionally compatible for applications not requiring the full 1Mbps data rate.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Data Rate	Supply Voltage	Operating Temp	Package	Product Status	RoHS Status	MSL
MAX3245EEAI	Analog Devices Inc./Maxim Integrated	1 Mbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Obsolete	RoHS Non-Compliant	MSL 1
MAX3245EAI+	Analog Devices Inc./Maxim Integrated	1 Mbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 1
MAX3245EEAI+	Analog Devices Inc./Maxim Integrated	1 Mbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 1
ICL3245EIAZ-T	Renesas Electronics Corporation	1 Mbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 2
SN65C3243DBR	Texas Instruments	1 Mbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 1
ICL3243EIAZ	Renesas Electronics Corporation	250 kbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 2
ICL3243EIAZ-T	Renesas Electronics Corporation	250 kbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 2
ICL3244EIAZ	Renesas Electronics Corporation	250 kbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 2
ICL3244EIAZ-T	Renesas Electronics Corporation	250 kbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 2
MAX3243IDBR	Texas Instruments	250 kbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Active	ROHS3 Compliant	MSL 1
MAX3243IDB	Texas Instruments	250 kbps	3V - 5.5V	-40°C to 85°C	28-SSOP	Obsolete	ROHS3 Compliant	MSL 1

Engineering Selection Recommendations

Primary Recommendation - Full Parameter Match:

MAX3245EEAI+ and MAX3245EAI+ are direct parametric equivalents manufactured by Analog Devices Inc./Maxim Integrated. Both parts maintain 1Mbps data rate capability, identical electrical specifications, and 28-SSOP packaging. Both are ROHS3 compliant and carry MSL 1 rating. MAX3245EEAI+ is available in Tube packaging with 2,136 units in stock, while MAX3245EAI+ is available in Tube packaging with 129,050 units in stock. These represent the optimal replacement path for the obsolete MAX3245EEAI.

Secondary Recommendation - 1Mbps Data Rate Alternatives:

ICL3245EIAZ-T (Renesas Electronics Corporation) maintains the 1Mbps data rate specification and is ROHS3 compliant. This part carries MSL 2 rating (1 Year) compared to MSL 1 of the original part. It is available in Tape & Reel packaging with 1,224 units in stock.

SN65C3243DBR (Texas Instruments) also supports 1Mbps data rate with ROHS3 compliance and MSL 1 rating. This part is available in Cut Tape & Digi-Reel packaging with 100,398 units in stock, providing the highest inventory availability among 1Mbps alternatives.

Functional Alternatives - 250kbps Data Rate:

For applications where 1Mbps data rate is not required, the following parts provide functional equivalence with reduced data rate specification:

ICL3243EIAZ and ICL3243EIAZ-T (Renesas Electronics Corporation)
ICL3244EIAZ and ICL3244EIAZ-T (Renesas Electronics Corporation)
MAX3243IDBR (Texas Instruments)

All functional alternatives maintain 3/5 driver/receiver configuration, 28-SSOP package, and -40°C to 85°C operating range. All are ROHS3 compliant. Renesas parts carry MSL 2 rating, while Texas Instruments MAX3243IDBR carries MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can MAX3245EEAI be directly replaced with MAX3245EEAI+?

A: Yes. MAX3245EEAI+ is a parametric equivalent with identical electrical specifications, package type, and operating range. The primary difference is product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. Non-Compliant). Pinout and functional behavior are equivalent.

Q: What is the difference between 1Mbps and 250kbps data rate variants?

A: The data rate specification defines the maximum serial communication speed supported by the transceiver. Parts rated for 1Mbps (MAX3245EEAI, MAX3245EAI+, ICL3245EIAZ-T, SN65C3243DBR) support higher-speed RS232 communication. Parts rated for 250kbps (ICL3243 and ICL3244 series, MAX3243 series) are suitable for lower-speed applications. Selection depends on the required communication speed of the target application.

Q: What does MSL rating mean for this component?

A: Moisture Sensitivity Level (MSL) indicates the component's sensitivity to moisture absorption during storage and handling. MSL 1 (Unlimited) allows indefinite storage without special precautions. MSL 2 (1 Year) requires controlled storage conditions and limits shelf life to one year from the date of manufacture. For applications with extended storage requirements, MSL 1 rated parts are preferred.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant. The original MAX3245EEAI is RoHS non-compliant. If RoHS compliance is a design requirement, any of the listed substitutes satisfy this criterion.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in multiple packaging formats: Tube (standard reel packaging), Cut Tape & Digi-Reel (individual component tape), and Tape & Reel (continuous reel format). Packaging selection depends on assembly process requirements and order quantity. All packaging formats contain the same die and electrical specifications.

Q: Can ICL3243 or ICL3244 series parts be used in place of ICL3245?

A: ICL3243, ICL3244, and ICL3245 all maintain the same 3/5 driver/receiver configuration, 28-SSOP package, and operating temperature range. The primary difference is data rate: ICL3243 and ICL3244 are rated for 250kbps, while ICL3245 is rated for 1Mbps. Substitution is possible only if the application does not require 1Mbps communication speed.

Q: Which substitute offers the best inventory availability?

A: SN65C3243DBR (Texas Instruments) offers the highest inventory availability with 100,398 units in stock. This part supports 1Mbps data rate, ROHS3 compliance, and MSL 1 rating. MAX3245EAI+ (Analog Devices Inc./Maxim Integrated) is the second option with 129,050 units available, providing parametric equivalence to the original part.

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