ICL3224IA-T RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The ICL3224IA-T 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, which necessitates identification of active equivalent and substitute components for ongoing design support and procurement continuity. The ICL3224IA-T operates across a 3V to 5.5V supply range with a 250kbps data rate and 500mV receiver hysteresis, making it suitable for legacy RS232 communication interfaces.

Key Parameters

Parameter	Value
Manufacturer Part Number	ICL3224IA-T
Manufacturer	Renesas Electronics Corporation
Product Status	Obsolete
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Data Rate	250kbps
Receiver Hysteresis	500mV
Voltage - Supply	3V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	20-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the ICL3224IA-T is determined by strict equivalence across the following critical parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Receiver Hysteresis: 500mV
Data Rate: 250kbps (minimum requirement)
Voltage - Supply: 3V ~ 5.5V
Package / Case: 20-SSOP (0.209", 5.30mm Width)
Mounting Type: Surface Mount

Substitute parts are categorized as follows:

Parametric Equivalents maintain all electrical and mechanical parameters identical to the main part while offering active product status and improved compliance certifications.

Direct Equivalents provide identical functional parameters with enhanced data rate capability (1Mbps), maintaining full backward compatibility.

Similar Parts share core RS232 2/2 transceiver functionality but may differ in operating temperature range or data rate specifications, requiring application-level verification.

Parameter Comparison

Part Number	Manufacturer	Product Status	Data Rate	Operating Temperature	RoHS Status	Packaging	Inventory
ICL3224IA-T	Renesas	Obsolete	250kbps	-40°C ~ 85°C	Non-compliant	20-SSOP	677 Pcs
ICL3222EIAZ-T	Renesas	Active	250kbps	-40°C ~ 85°C	ROHS3 Compliant	20-SSOP (TR)	6067 Pcs
ICL3224EIAZ-T	Renesas	Active	250kbps	-40°C ~ 85°C	ROHS3 Compliant	20-SSOP (TR)	905 Pcs
ICL3225EIAZ-T	Renesas	Active	250kbps	-40°C ~ 85°C	ROHS3 Compliant	20-SSOP (CT)	3200 Pcs
MAX3225EEAP+	Analog Devices/Maxim	Active	1Mbps	-40°C ~ 85°C	ROHS3 Compliant	20-SSOP (Tube)	3100 Pcs
MAX3225EEAP+T	Analog Devices/Maxim	Active	1Mbps	-40°C ~ 85°C	ROHS3 Compliant	20-SSOP (CT)	2116 Pcs
MAX3224CAP+	Analog Devices/Maxim	Active	250kbps	0°C ~ 70°C	ROHS3 Compliant	20-SSOP (Tube)	2100 Pcs
MAX3224CAP+T	Analog Devices/Maxim	Active	250kbps	0°C ~ 70°C	ROHS3 Compliant	20-SSOP (TR)	1109 Pcs
MAX3224EAAP+	Analog Devices/Maxim	Active	250kbps	-40°C ~ 125°C	ROHS3 Compliant	20-SSOP (Tube)	1408 Pcs
MAX3224EAAP+T	Analog Devices/Maxim	Active	250kbps	-40°C ~ 125°C	ROHS3 Compliant	20-SSOP (TR)	2100 Pcs

Engineering Selection Recommendations

For Direct Replacement with Active Status:

ICL3224EIAZ-T and ICL3225EIAZ-T from Renesas provide parametric equivalence to the ICL3224IA-T while offering active product status and ROHS3 compliance. Both maintain identical electrical specifications across supply voltage, data rate, operating temperature, and package geometry. ICL3224EIAZ-T is the closest functional match, while ICL3225EIAZ-T offers the same performance with alternative packaging format.

For Extended Temperature Range Applications:

MAX3224EAAP+ and MAX3224EAAP+T extend the operating temperature range to -40°C ~ 125°C while maintaining 250kbps data rate and identical package specifications. These parts are suitable for applications requiring enhanced thermal performance beyond the standard -40°C ~ 85°C range.

For Enhanced Data Rate Capability:

MAX3225EEAP+ and MAX3225EEAP+T provide 1Mbps data rate capability while maintaining backward compatibility with 250kbps legacy systems. These parts support higher-speed RS232 communication within the same 20-SSOP package footprint and -40°C ~ 85°C operating range.

For Restricted Temperature Applications:

MAX3224CAP+ and MAX3224CAP+T operate within 0°C ~ 70°C range. These parts are suitable only for applications where the narrower temperature specification aligns with system requirements.

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, addressing regulatory requirements absent in the obsolete ICL3224IA-T.

Frequently Asked Questions (FAQ)

Q: Can ICL3222EIAZ-T replace ICL3224IA-T directly?

A: ICL3222EIAZ-T maintains identical electrical parameters (2/2 transceiver, RS232 protocol, 250kbps data rate, 500mV hysteresis, 3V-5.5V supply, -40°C to 85°C operating range) and 20-SSOP package geometry. It is a parametric equivalent suitable for direct substitution. The primary difference is active product status and ROHS3 compliance.

Q: What is the difference between ICL3224EIAZ-T and ICL3225EIAZ-T?

A: Both parts are parametric equivalents with identical electrical specifications. The difference lies in the base product number (ICL3224 versus ICL3225) and packaging format (Tape & Reel versus Cut Tape & Digi-Reel). Electrical performance and pin configuration remain equivalent.

Q: Can MAX3225EEAP+ be used in place of ICL3224IA-T?

A: MAX3225EEAP+ is a direct equivalent with enhanced 1Mbps data rate capability. It maintains identical supply voltage (3V-5.5V), operating temperature (-40°C to 85°C), 2/2 transceiver configuration, and 20-SSOP package. The higher data rate provides backward compatibility with 250kbps legacy systems.

Q: Why do MAX3224CAP+ and MAX3224CAP+T have a narrower operating temperature range?

A: MAX3224CAP+ and MAX3224CAP+T are specified for 0°C ~ 70°C operation, which is narrower than the ICL3224IA-T range of -40°C ~ 85°C. These parts are suitable only for applications operating within this restricted temperature window.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in Tube, Tape & Reel (TR), and Cut Tape (CT) & Digi-Reel packaging formats. All maintain the 20-SSOP (0.209", 5.30mm Width) surface mount package geometry required for PCB compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitute parts carry ROHS3 compliance certification. The original ICL3224IA-T is RoHS non-compliant. Substitution addresses both obsolescence and regulatory compliance requirements.

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