ICL3223CV RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The ICL3223CV is a 2/2 full-duplex RS232 transceiver manufactured by Renesas Electronics Corporation in a 20-TSSOP surface mount package. This interface IC operates across a 3V to 5.5V supply range with a 250kbps data rate and 300mV receiver hysteresis, designed for serial communication applications requiring RS232 protocol compliance.

The ICL3223CV is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support legacy system maintenance or redesigns requiring active product alternatives.

Key Parameters

Parameter	Value
Manufacturer Part Number	ICL3223CV
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	300 mV
Data Rate	250kbps
Voltage - Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the ICL3223CV is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Mounting Type: Surface Mount
Package / Case: 20-TSSOP (0.173", 4.40mm Width)
Voltage - Supply: 3V ~ 5.5V

Allowable Variation Parameters:

Receiver Hysteresis: 300mV (main part) to 500mV (substitutes) — acceptable within RS232 specification tolerances
Data Rate: 250kbps (main part) to 500kbps (substitutes) — higher data rates are backward compatible
Operating Temperature: 0°C ~ 70°C (main part) to -40°C ~ 85°C (substitutes) — extended range is acceptable
Product Status: Obsolete to Active — active products provide supply continuity
RoHS Compliance: Non-compliant to ROHS3 Compliant — compliance is an upgrade consideration

Substitutes are grouped by relationship type: parametric equivalents (same base specifications), direct manufacturers (functionally equivalent from different vendors), and upgrades (enhanced specifications with backward compatibility).

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Operating Temp	Product Status	RoHS Status	Packaging
ICL3223CV	Renesas	RS232	2/2	250kbps	300mV	0°C ~ 70°C	Obsolete	Non-compliant	Tube
ICL3222CVZ	Renesas	RS232	2/2	250kbps	300mV	0°C ~ 70°C	Active	ROHS3 Compliant	Tube
MAX3223ECPW	Texas Instruments	RS232	2/2	500kbps	500mV	0°C ~ 70°C	Obsolete	ROHS3 Compliant	Tube
MAX3223ECPWG4	Texas Instruments	RS232	2/2	500kbps	500mV	0°C ~ 70°C	Obsolete	ROHS3 Compliant	Tube
MAX3223ECPWR	Texas Instruments	RS232	2/2	500kbps	500mV	0°C ~ 70°C	Obsolete	ROHS3 Compliant	Cut Tape (CT)
MAX3223IPW	Texas Instruments	RS232	2/2	250kbps	500mV	-40°C ~ 85°C	Obsolete	ROHS3 Compliant	Tube
ST3222EBTR	STMicroelectronics	RS232	2/2	250kbps	500mV	-40°C ~ 85°C	Active	ROHS3 Compliant	Cut Tape (CT) & Digi-Reel®
TRS3223ECPW	Texas Instruments	RS232	2/2	500kbps	500mV	0°C ~ 70°C	Obsolete	ROHS3 Compliant	Tube
MAX3223EIPW	Texas Instruments	RS232	2/2	500kbps	500mV	-40°C ~ 85°C	Obsolete	ROHS3 Compliant	Tube
MAX3223EIPWR	Texas Instruments	RS232	2/2	500kbps	500mV	-40°C ~ 85°C	Active	ROHS3 Compliant	Cut Tape (CT) & Digi-Reel®
SP3223EEY-L	MaxLinear, Inc.	RS232	2/2	235Kbps	300mV	-40°C ~ 85°C	Active	ROHS3 Compliant	Tube

Engineering Selection Recommendations

For Direct Replacement (Obsolete to Active): ICL3222CVZ is the primary parametric equivalent from Renesas, maintaining identical electrical specifications (250kbps, 300mV hysteresis, 0°C ~ 70°C operating range) while offering active product status and ROHS3 compliance. This part provides the most direct substitution path with no design modifications required.

For Extended Temperature Range Applications: ST3222EBTR (STMicroelectronics) and MAX3223EIPWR (Texas Instruments) both support -40°C ~ 85°C operating temperatures with active product status and ROHS3 compliance. These parts are suitable for industrial or automotive environments requiring wider temperature specifications than the original ICL3223CV.

For Supply Chain Flexibility: MAX3223EIPWR offers the highest inventory availability (32,100 pcs) among active substitutes, combined with active product status, ROHS3 compliance, and extended temperature range. This part provides long-term supply security for high-volume applications.

For RoHS Compliance Upgrades: All substitute parts listed are ROHS3 compliant, addressing environmental and regulatory requirements. The ICL3223CV's RoHS non-compliance status makes migration to compliant alternatives necessary for new designs or regulatory-driven redesigns.

Frequently Asked Questions (FAQ)

Q: Can MAX3223ECPWR replace ICL3223CV directly? A: Yes, functionally. Both are 2/2 full-duplex RS232 transceivers in 20-TSSOP packages with 3V ~ 5.5V supply compatibility. The MAX3223ECPWR operates at 500kbps (versus 250kbps) and 500mV hysteresis (versus 300mV), both of which are backward compatible. However, MAX3223ECPWR is obsolete; MAX3223EIPWR is the active equivalent.

Q: What is the difference between ICL3222CVZ and ICL3223CV? A: ICL3222CVZ is the parametric equivalent with identical electrical specifications and package. The primary difference is product status: ICL3222CVZ is active while ICL3223CV is obsolete. Both maintain 250kbps data rate and 300mV receiver hysteresis.

Q: Does operating temperature range affect substitution? A: Operating temperature is an allowable variation parameter. Substitutes with extended ranges (-40°C ~ 85°C) are acceptable for applications originally specified at 0°C ~ 70°C. However, if your application requires the narrower 0°C ~ 70°C range, extended-range parts remain fully compatible.

Q: Why do some substitutes have 500kbps data rate instead of 250kbps? A: Higher data rates are backward compatible. A 500kbps transceiver operates correctly at 250kbps. This represents an upgrade in capability with no functional penalty for lower-speed applications.

Q: Is RoHS compliance mandatory for substitution? A: RoHS compliance is not a functional requirement for substitution but is a regulatory and supply chain consideration. All active substitutes listed are ROHS3 compliant, making them suitable for new designs and regions with RoHS mandates.

Q: What packaging options are available? A: Substitutes are available in Tube, Cut Tape (CT), and Cut Tape with Digi-Reel® packaging. All maintain the 20-TSSOP form factor. Packaging selection depends on procurement volume and assembly line requirements.

Q: Can SP3223EEY-L replace ICL3223CV? A: Yes. SP3223EEY-L is an active upgrade from MaxLinear with identical 2/2 RS232 configuration, 20-TSSOP package, and 3V ~ 5.5V supply range. It offers 300mV hysteresis (matching the original), extended -40°C ~ 85°C temperature range, ROHS3 compliance, and 235Kbps data rate (compatible with 250kbps applications).

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