ICL3225ECA-T RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The ICL3225ECA-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, making equivalent and substitute parts necessary for ongoing design support and production continuity. The transceiver operates across a 3V to 5.5V supply range with a 250kbps data rate and 500mV receiver hysteresis, suitable for legacy RS232 communication interfaces.

Key Parameters

Parameter	Value
Manufacturer Part Number	ICL3225ECA-T
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	0°C ~ 70°C
Package / Case	20-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
Receiver Hysteresis	500 mV
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

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

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

Substitute parts are grouped into three categories:

Parametric Equivalents maintain identical electrical specifications and package footprint but differ in product status (active vs. obsolete) and compliance certifications.

Direct Equivalents provide identical functionality with variations in packaging format (tube, tape & reel, cut tape) and extended operating temperature ranges in some cases.

Upgrade Options offer enhanced specifications such as extended temperature ranges (-40°C to 85°C) while maintaining full backward compatibility with the original part's electrical and mechanical interface.

Parameter Comparison

Part Number	Manufacturer	Data Rate	Operating Temp	Supply Voltage	Package	Product Status	RoHS Status	Inventory
ICL3225ECA-T	Renesas	250kbps	0°C ~ 70°C	3V ~ 5.5V	20-SSOP	Obsolete	Non-compliant	717 Pcs
ICL3222ECAZ-T	Renesas	250kbps	0°C ~ 70°C	3V ~ 5.5V	20-SSOP	Active	ROHS3 Compliant	3050 Pcs
ICL3225ECAZ-T	Renesas	250kbps	0°C ~ 70°C	3V ~ 5.5V	20-SSOP	Active	ROHS3 Compliant	2381 Pcs
MAX3223CDB	Texas Instruments	250kbps	0°C ~ 70°C	3V ~ 5.5V	20-SSOP	Obsolete	ROHS3 Compliant	2000 Pcs
MAX3223ECAP+	Analog Devices/Maxim	250kbps	-40°C ~ 85°C	3V ~ 5.5V	20-SSOP	Active	ROHS3 Compliant	2000 Pcs
MAX3223ECAP+T	Analog Devices/Maxim	250kbps	-40°C ~ 85°C	3V ~ 5.5V	20-SSOP	Active	ROHS3 Compliant	5100 Pcs
MAX3225ECAP+	Analog Devices/Maxim	1Mbps	0°C ~ 70°C	3V ~ 5.5V	20-SSOP	Active	ROHS3 Compliant	3400 Pcs
MAX3225ECAP+T	Analog Devices/Maxim	1Mbps	0°C ~ 70°C	3V ~ 5.5V	20-SSOP	Active	ROHS3 Compliant	3489 Pcs
SN75C3223EDB	Texas Instruments	1Mbps	0°C ~ 70°C	3V ~ 5.5V	20-SSOP	Last Time Buy	ROHS3 Compliant	943 Pcs
SN75C3223EDBR	Texas Instruments	1Mbps	0°C ~ 70°C	3V ~ 5.5V	20-SSOP	Last Time Buy	ROHS3 Compliant	3830 Pcs
MAX3225EEAP+	Analog Devices/Maxim	1Mbps	-40°C ~ 85°C	3V ~ 5.5V	20-SSOP	Active	ROHS3 Compliant	3100 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications)

ICL3225ECAZ-T and ICL3222ECAZ-T from Renesas provide parametric equivalence with the original ICL3225ECA-T. Both are active products with ROHS3 compliance, addressing the obsolescence and compliance limitations of the original part. ICL3225ECAZ-T maintains the exact 250kbps data rate specification.

For Cross-Manufacturer Substitution

MAX3223ECAP+T (Analog Devices/Maxim) offers identical 250kbps performance with extended operating temperature range (-40°C to 85°C) and active product status. This part is available in higher inventory (5100 pcs) and provides ROHS3 compliance.

For Enhanced Performance Applications

MAX3225ECAP+T and MAX3225EEAP+ support 1Mbps data rates while maintaining full backward compatibility with the 20-SSOP package and 3V to 5.5V supply range. MAX3225EEAP+ extends the operating temperature to -40°C to 85°C for demanding environments.

Avoid

MAX3223CDB and SN75C3223EDB/EDBR are classified as obsolete or last-time-buy products and should not be selected for new designs requiring long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can ICL3222ECAZ-T replace ICL3225ECA-T directly?

A: Yes. Both parts share identical electrical specifications (2/2 RS232 transceiver, 250kbps, 3V–5.5V supply, 500mV hysteresis) and the same 20-SSOP package footprint. ICL3222ECAZ-T is active and ROHS3 compliant, addressing the obsolescence of the original part.

Q: What is the difference between MAX3223ECAP+ and MAX3223ECAP+T?

A: Both parts are electrically identical. The "+T" suffix indicates tape & reel packaging format, while the non-suffixed version uses tube packaging. Select based on your assembly process requirements.

Q: Can I use MAX3225ECAP+T instead of ICL3225ECA-T?

A: Yes, with one consideration: MAX3225ECAP+T supports 1Mbps data rates compared to the original 250kbps specification. This higher performance is fully backward compatible and does not affect operation at lower data rates. The part maintains the same 20-SSOP package and 3V–5.5V supply range.

Q: Why do some substitutes have extended temperature ranges?

A: Parts like MAX3223ECAP+ and MAX3225EEAP+ are rated for -40°C to 85°C operation versus the original 0°C to 70°C. These extended-range versions are suitable for industrial and automotive applications requiring wider temperature tolerance. They are fully compatible with designs specified for the narrower temperature range.

Q: Is ROHS3 compliance mandatory for my application?

A: ROHS3 compliance is required for products sold in the European Union and many other regulated markets. The original ICL3225ECA-T is non-compliant. All recommended substitutes except MAX3223CDB are ROHS3 compliant, ensuring regulatory alignment for new production.

Q: What inventory levels should I consider?

A: MAX3223ECAP+T offers the highest inventory (5100 pcs), followed by SN75C3223EDBR (3830 pcs) and MAX3225ECAP+T (3489 pcs). For long-term supply security, prioritize active-status parts with higher inventory levels.

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