MAX3245ECAI RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX3245ECAI 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 operates across 3V to 5.5V supply voltage with a 1 Mbps data rate and 500 mV receiver hysteresis, supporting industrial and commercial communication applications.

The MAX3245ECAI is classified as obsolete. Equivalent and direct substitute parts are available from multiple manufacturers with active product status, offering improved availability and compliance certifications while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX3245ECAI
Manufacturer	Analog Devices Inc./Maxim Integrated
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	3/5
Duplex	Full
Data Rate	1 Mbps
Receiver Hysteresis	500 mV
Voltage - Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°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 eligibility for the MAX3245ECAI is determined by strict parameter matching across the following critical criteria:

Mandatory Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 3/5
Duplex: Full
Voltage - Supply: 3V ~ 5.5V
Operating Temperature: 0°C ~ 70°C (minimum requirement)
Mounting Type: Surface Mount
Package / Case: 28-SSOP (0.209", 5.30mm Width)
Data Rate: 1 Mbps (minimum requirement)
Receiver Hysteresis: 500 mV (minimum requirement)

Substitution Categories:

Parametric Equivalents maintain all electrical and mechanical specifications with identical performance characteristics. These parts are direct functional replacements with no design modifications required.

Direct Manufacturer Equivalents are produced by alternative manufacturers and meet all core electrical parameters. Minor variations in secondary specifications (such as receiver hysteresis or data rate) may exist within acceptable tolerances for RS232 applications.

Upgrade Parts exceed the operating temperature range of the original specification, providing extended temperature performance while maintaining all other electrical and mechanical parameters.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temperature	Package	Product Status	RoHS Status
MAX3245ECAI	Analog Devices Inc./Maxim Integrated	RS232	3/5	1 Mbps	500 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Obsolete	RoHS non-compliant
MAX3245CAI+	Analog Devices Inc./Maxim Integrated	RS232	3/5	1 Mbps	500 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Active	ROHS3 Compliant
MAX3245ECAI+	Analog Devices Inc./Maxim Integrated	RS232	3/5	1 Mbps	500 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Active	ROHS3 Compliant
ICL3245CAZ-T	Renesas Electronics Corporation	RS232	3/5	1 Mbps	500 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Active	ROHS3 Compliant
ICL3245ECAZ-T	Renesas Electronics Corporation	RS232	3/5	1 Mbps	500 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Active	ROHS3 Compliant
MAX3243CDB	Texas Instruments	RS232	3/5	250 kbps	300 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Obsolete	ROHS3 Compliant
MAX3243CDBR	Texas Instruments	RS232	3/5	250 kbps	300 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Active	ROHS3 Compliant
SN75C3243DBR	Texas Instruments	RS232	3/5	1 Mbps	500 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Active	ROHS3 Compliant
SP3243EUCA-L/TR	MaxLinear, Inc.	RS232	3/5	1 Mbps	300 mV	3V ~ 5.5V	0°C ~ 70°C	28-SSOP	Active	ROHS3 Compliant
ICL3245EIAZ	Renesas Electronics Corporation	RS232	3/5	1 Mbps	500 mV	3V ~ 5.5V	-40°C ~ 85°C	28-SSOP	Active	ROHS3 Compliant
ICL3245EIAZ-T	Renesas Electronics Corporation	RS232	3/5	1 Mbps	500 mV	3V ~ 5.5V	-40°C ~ 85°C	28-SSOP	Active	ROHS3 Compliant

Engineering Selection Recommendations

Full Parametric Equivalents (Recommended for Direct Replacement):

MAX3245CAI+ and MAX3245ECAI+ are parametric equivalents manufactured by Analog Devices Inc./Maxim Integrated. Both parts maintain identical electrical specifications to the MAX3245ECAI while offering active product status and ROHS3 compliance. These parts are suitable for new designs and legacy system updates without circuit modification.

Direct Manufacturer Equivalents (Active Status, Full Compliance):

ICL3245CAZ-T and ICL3245ECAZ-T (Renesas Electronics Corporation) provide direct substitution with full parameter matching and active product status. Both parts are ROHS3 compliant and available in standard packaging configurations.

SN75C3243DBR (Texas Instruments) matches all critical electrical parameters including 1 Mbps data rate and 500 mV receiver hysteresis. This part is actively produced and ROHS3 compliant.

Conditional Substitutes (Parameter Deviations):

MAX3243CDBR (Texas Instruments) operates at 250 kbps data rate and 300 mV receiver hysteresis, below the MAX3245ECAI specification. This part is suitable only for applications with lower bandwidth requirements and reduced noise immunity margins.

SP3243EUCA-L/TR (MaxLinear, Inc.) maintains 1 Mbps data rate but specifies 300 mV receiver hysteresis. This part is suitable for applications where reduced hysteresis is acceptable.

Extended Temperature Performance:

ICL3245EIAZ and ICL3245EIAZ-T (Renesas Electronics Corporation) extend the operating temperature range to -40°C ~ 85°C while maintaining all other electrical specifications. These parts are suitable for industrial and automotive applications requiring wider temperature performance.

Frequently Asked Questions (FAQ)

Q: Can MAX3245CAI+ directly replace MAX3245ECAI in existing designs?

A: Yes. MAX3245CAI+ is a parametric equivalent with identical electrical and mechanical specifications. The primary differences are active product status and ROHS3 compliance. No circuit modifications are required.

Q: What is the difference between MAX3245ECAI+ and MAX3245CAI+?

A: Both parts are parametric equivalents with identical electrical specifications. The difference lies in packaging: MAX3245ECAI+ is supplied in Tube packaging, while MAX3245CAI+ is also supplied in Tube. Both are ROHS3 compliant and actively produced.

Q: Are ICL3245ECAZ-T and ICL3245CAZ-T interchangeable?

A: Yes. Both Renesas parts are direct equivalents with identical electrical parameters. ICL3245ECAZ-T is supplied in Tape & Reel packaging, while ICL3245CAZ-T is also supplied in Tape & Reel. Both are ROHS3 compliant and actively produced.

Q: Can MAX3243CDBR be used as a substitute for MAX3245ECAI?

A: MAX3243CDBR is not a full equivalent. It operates at 250 kbps (versus 1 Mbps) and specifies 300 mV receiver hysteresis (versus 500 mV). This part is suitable only for applications with lower bandwidth requirements and where reduced noise immunity is acceptable.

Q: What is the advantage of ICL3245EIAZ over ICL3245ECAZ-T?

A: ICL3245EIAZ extends the operating temperature range to -40°C ~ 85°C, compared to 0°C ~ 70°C for ICL3245ECAZ-T. All other electrical specifications remain identical. Select ICL3245EIAZ for industrial and automotive applications requiring extended temperature performance.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant except the original MAX3245ECAI, which is RoHS non-compliant. This compliance improvement is a key advantage of transitioning to active substitute parts.

Q: Does packaging type affect electrical performance?

A: No. Packaging type (Tube, Tape & Reel, Cut Tape) does not affect electrical performance. Selection should be based on manufacturing process requirements and inventory management practices.

Q: Can SN75C3243DBR replace MAX3245ECAI?

A: Yes. SN75C3243DBR is a direct equivalent with matching 1 Mbps data rate and 500 mV receiver hysteresis. It is actively produced and ROHS3 compliant, making it suitable for direct replacement.

Q: What does MSL (Moisture Sensitivity Level) indicate?

A: MSL indicates moisture sensitivity during storage and handling. MSL 1 (Unlimited) allows unlimited shelf life without special moisture control. MSL 2 (1 Year) requires moisture control measures and limits shelf life to one year. This specification does not affect electrical performance but impacts storage and handling procedures.

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