ICL3224IAZ Equivalent & Substitute Parts

Part Overview

The ICL3224IAZ is a 2/2 full-duplex RS232 transceiver manufactured by Renesas Electronics Corporation in a 20-SSOP surface mount package. This interface IC operates across a 3V to 5.5V supply range with a 250kbps data rate and 500mV receiver hysteresis, designed for serial communication applications requiring full RS232 protocol compliance.

The ICL3224IAZ is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance of systems utilizing this transceiver.

Key Parameters

Parameter	Value
Manufacturer Part Number	ICL3224IAZ
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Data Rate	250kbps
Voltage - Supply	3V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Receiver Hysteresis	500mV
Mounting Type	Surface Mount
Package / Case	20-SSOP (0.209", 5.30mm Width)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the ICL3224IAZ are classified based on strict parameter alignment across the following critical criteria:

Substitution-Determining Parameters:

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

Parametric Equivalents (ICL3222EIAZ, ICL3224EIAZ, ICL3225EIAZ) match all critical parameters and originate from Renesas Electronics Corporation. These parts maintain identical electrical specifications and package form factors, differing only in product status (active vs. obsolete) and moisture sensitivity levels.

Direct Equivalents (MAX3225EEAP+, MAX3225EEAP+T) are manufactured by Analog Devices Inc./Maxim Integrated and meet all core substitution parameters. The MAX3225 series operates at 1Mbps data rate, exceeding the 250kbps requirement while maintaining full backward compatibility.

Similar Parts (MAX3224CAP+, MAX3224CAP+T, MAX3224EAAP+, MAX3224EAAP+T, MAX3224EAAP/GG8) are Maxim Integrated equivalents with identical electrical specifications. Operating temperature ranges vary: MAX3224CAP variants operate at 0°C ~ 70°C, while MAX3224EAAP variants extend to -40°C ~ 125°C, providing broader thermal coverage for extended-temperature applications.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Supply Voltage	Operating Temp	Package	Product Status	Inventory
ICL3224IAZ	Renesas	RS232	2/2	250kbps	3V ~ 5.5V	-40°C ~ 85°C	20-SSOP	Obsolete	858 Pcs
ICL3222EIAZ	Renesas	RS232	2/2	250kbps	3V ~ 5.5V	-40°C ~ 85°C	20-SSOP	Active	1446 Pcs
ICL3224EIAZ	Renesas	RS232	2/2	250kbps	3V ~ 5.5V	-40°C ~ 85°C	20-SSOP	Active	1439 Pcs
ICL3225EIAZ	Renesas	RS232	2/2	250kbps	3V ~ 5.5V	-40°C ~ 85°C	20-SSOP	Active	1744 Pcs
MAX3225EEAP+	Maxim Integrated	RS232	2/2	1Mbps	3V ~ 5.5V	-40°C ~ 85°C	20-SSOP	Active	3100 Pcs
MAX3225EEAP+T	Maxim Integrated	RS232	2/2	1Mbps	3V ~ 5.5V	-40°C ~ 85°C	20-SSOP	Active	2116 Pcs
MAX3224CAP+	Maxim Integrated	RS232	2/2	250kbps	3V ~ 5.5V	0°C ~ 70°C	20-SSOP	Active	2100 Pcs
MAX3224CAP+T	Maxim Integrated	RS232	2/2	250kbps	3V ~ 5.5V	0°C ~ 70°C	20-SSOP	Active	1109 Pcs
MAX3224EAAP+	Maxim Integrated	RS232	2/2	250kbps	3V ~ 5.5V	-40°C ~ 125°C	20-SSOP	Active	1408 Pcs
MAX3224EAAP+T	Maxim Integrated	RS232	2/2	250kbps	3V ~ 5.5V	-40°C ~ 125°C	20-SSOP	Active	2100 Pcs
MAX3224EAAP/GG8	Maxim Integrated	RS232	2/2	250kbps	3V ~ 5.5V	-40°C ~ 125°C	20-SSOP	Active	1020 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): ICL3224EIAZ and ICL3225EIAZ are active-status Renesas parts with identical electrical and thermal specifications to the obsolete ICL3224IAZ. Both are ROHS3 compliant and REACH unaffected. ICL3224EIAZ maintains the same base product number lineage, while ICL3225EIAZ offers equivalent performance with higher inventory availability (1744 Pcs).

For Extended Temperature Range Applications: MAX3224EAAP+ and MAX3224EAAP+T extend the operating temperature range to -40°C ~ 125°C, supporting applications requiring broader thermal coverage. Both are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

For Higher Data Rate Requirements: MAX3225EEAP+ and MAX3225EEAP+T support 1Mbps data rates, providing performance headroom beyond the 250kbps specification. These parts maintain full backward compatibility with 250kbps operation and are available in higher quantities (3100 Pcs and 2116 Pcs respectively).

For Commercial Temperature Range Applications: MAX3224CAP+ and MAX3224CAP+T operate within 0°C ~ 70°C, suitable for commercial-grade applications where extended low-temperature performance is not required. Both maintain 250kbps data rate specification and ROHS3 compliance.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can ICL3224EIAZ directly replace ICL3224IAZ? A: Yes. ICL3224EIAZ is a parametric equivalent with identical electrical specifications, supply voltage range (3V ~ 5.5V), data rate (250kbps), operating temperature (-40°C ~ 85°C), and 20-SSOP package. The primary difference is product status: ICL3224EIAZ is active while ICL3224IAZ is obsolete.

Q: What is the difference between ICL3224EIAZ and ICL3225EIAZ? A: Both are parametric equivalents with identical electrical and thermal specifications. The difference lies in the base product number (ICL3224 vs. ICL3225) and moisture sensitivity level (MSL 2 vs. MSL 2). ICL3225EIAZ has higher inventory availability.

Q: Can MAX3225EEAP+ replace ICL3224IAZ? A: Yes, with performance enhancement. MAX3225EEAP+ supports 1Mbps data rate versus the 250kbps specification of ICL3224IAZ. All other parameters—supply voltage, package, duplex mode, and driver/receiver configuration—are identical. The higher data rate provides backward compatibility with 250kbps operation.

Q: What is the difference between MAX3224CAP+ and MAX3224EAAP+? A: Both are Maxim Integrated equivalents with identical 250kbps data rate and supply voltage. The key difference is operating temperature range: MAX3224CAP+ operates 0°C ~ 70°C (commercial), while MAX3224EAAP+ operates -40°C ~ 125°C (extended). Select MAX3224EAAP+ for applications requiring full temperature coverage matching the original ICL3224IAZ specification.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What packaging options are available for MAX3224 variants? A: MAX3224 parts are available in multiple packaging formats: Tube (standard), Tape & Reel (TR), and Cut Tape (CT) & Digi-Reel. Select based on procurement and assembly requirements. Electrical specifications remain identical across packaging variants.

Q: Can I use MAX3224CAP+ in an application requiring -40°C operation? A: No. MAX3224CAP+ operates within 0°C ~ 70°C and is not rated for -40°C operation. Use MAX3224EAAP+ or ICL3224EIAZ for applications requiring -40°C minimum operating temperature.

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