ICL3225ECA RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The ICL3225ECA is a 2/2 full-duplex RS232 transceiver manufactured by Renesas Electronics Corporation in a 20-SSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The ICL3225ECA operates across a 3V to 5.5V supply range with a 250kbps data rate and 500mV receiver hysteresis, suitable for legacy RS232 communication applications requiring compact packaging.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Data Rate	250kbps
Voltage Supply Range	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Receiver Hysteresis	500mV
Package / Case	20-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the ICL3225ECA is determined by strict equivalence across the following critical parameters:

Protocol: RS232
Configuration: 2/2 full-duplex transceiver
Package: 20-SSOP (0.209", 5.30mm Width)
Voltage Supply: 3V ~ 5.5V
Receiver Hysteresis: 500mV
Data Rate: 250kbps minimum
Mounting Type: Surface Mount

Substitute parts are grouped into two categories: parametric equivalents from Renesas Electronics Corporation (same manufacturer, matching all electrical specifications) and direct equivalents from alternative manufacturers (Texas Instruments and Analog Devices Inc./Maxim Integrated) that meet identical functional and package requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Data Rate	Operating Temp	RoHS Status	MSL Rating	Packaging
ICL3225ECA	Renesas	Obsolete	250kbps	0°C ~ 70°C	Non-compliant	1 (Unlimited)	20-SSOP
ICL3222ECAZ	Renesas	Active	250kbps	0°C ~ 70°C	ROHS3 Compliant	3 (168 Hours)	20-SSOP
ICL3223ECAZ	Renesas	Obsolete	250kbps	0°C ~ 70°C	ROHS3 Compliant	3 (168 Hours)	20-SSOP
ICL3225ECAZ	Renesas	Active	250kbps	0°C ~ 70°C	ROHS3 Compliant	2 (1 Year)	20-SSOP
MAX3223CDBR	Texas Instruments	Obsolete	250kbps	0°C ~ 70°C	ROHS3 Compliant	1 (Unlimited)	20-SSOP
MAX3223ECAP+	Analog Devices/Maxim	Active	250kbps	-40°C ~ 85°C	ROHS3 Compliant	1 (Unlimited)	20-SSOP
MAX3223ECAP+T	Analog Devices/Maxim	Active	250kbps	-40°C ~ 85°C	ROHS3 Compliant	1 (Unlimited)	20-SSOP
MAX3225ECAP+	Analog Devices/Maxim	Active	1Mbps	0°C ~ 70°C	ROHS3 Compliant	1 (Unlimited)	20-SSOP
MAX3225ECAP+T	Analog Devices/Maxim	Active	1Mbps	0°C ~ 70°C	ROHS3 Compliant	1 (Unlimited)	20-SSOP
SN75C3223EDB	Texas Instruments	Last Time Buy	1Mbps	0°C ~ 70°C	ROHS3 Compliant	1 (Unlimited)	20-SSOP
SN75C3223EDBR	Texas Instruments	Last Time Buy	1Mbps	0°C ~ 70°C	ROHS3 Compliant	1 (Unlimited)	20-SSOP

Engineering Selection Recommendations

For direct replacement of the obsolete ICL3225ECA, the ICL3225ECAZ from Renesas Electronics Corporation is the primary equivalent. This part maintains identical electrical specifications, package configuration, and supply voltage range while offering active product status and ROHS3 compliance with improved moisture sensitivity rating (MSL 2).

For applications requiring extended operating temperature range (-40°C to 85°C), the MAX3223ECAP+ or MAX3223ECAP+T from Analog Devices Inc./Maxim Integrated provide full parametric equivalence with active product status and unlimited moisture sensitivity. These parts are available in multiple packaging formats (Tube and Cut Tape & Digi-Reel).

For applications where higher data rate capability (1Mbps) is acceptable, the MAX3225ECAP+ or MAX3225ECAP+T offer backward compatibility with enhanced performance while maintaining the same 20-SSOP package footprint and supply voltage specifications.

The MAX3223CDBR from Texas Instruments provides an alternative from a second source manufacturer, though it carries obsolete product status. The SN75C3223EDB and SN75C3223EDBR variants from Texas Instruments are classified as Last Time Buy and offer 1Mbps data rate capability.

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements where the original ICL3225ECA does not.

Frequently Asked Questions (FAQ)

Q: Can I use ICL3225ECAZ as a direct replacement for ICL3225ECA?

A: Yes. The ICL3225ECAZ is a parametric equivalent with identical electrical specifications, package configuration, and supply voltage range. The primary differences are active product status and improved RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between MAX3223 and MAX3225 variants?

A: Both are 2/2 full-duplex RS232 transceivers in 20-SSOP packages with 3V to 5.5V supply range. The MAX3225 series supports 1Mbps data rate compared to the 250kbps specification of MAX3223. For applications requiring only 250kbps operation, either part is functionally compatible.

Q: Are the packaging variants (Tube, Cut Tape, Tape & Reel) electrically equivalent?

A: Yes. Packaging variants (such as MAX3223ECAP+ in Tube versus MAX3223ECAP+T in Cut Tape & Digi-Reel) contain identical die and electrical specifications. The designation indicates only the supply format and does not affect component performance or compatibility.

Q: Can I substitute a part with extended temperature range (-40°C to 85°C) in a design specified for 0°C to 70°C?

A: Yes. Extended temperature range parts are backward compatible with designs requiring narrower operating ranges. The MAX3223ECAP+ and MAX3223ECAP+T support -40°C to 85°C operation and are suitable for 0°C to 70°C applications.

Q: What does "Last Time Buy" product status mean for SN75C3223 parts?

A: Last Time Buy indicates the manufacturer has announced end-of-life with a final purchase window. These parts remain functionally equivalent but have limited future availability. For new designs, active status parts (ICL3225ECAZ, MAX3223ECAP+, MAX3225ECAP+) are recommended.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitutes carry ROHS3 Compliant status. The original ICL3225ECA is RoHS non-compliant. Substitution enables compliance with modern environmental and regulatory requirements.

Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?

A: MSL ratings indicate moisture exposure limits during storage and handling. MSL 1 (Unlimited) allows indefinite storage without baking. MSL 2 and MSL 3 require controlled storage conditions and baking before reflow soldering. For standard manufacturing environments, MSL 1 parts (MAX3223ECAP+, MAX3225ECAP+) offer the least handling complexity.

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