ICL3222IVZ Equivalent & Substitute Parts

Part Overview

The ICL3222IVZ is a 2/2 full-duplex RS232 transceiver manufactured by Renesas Electronics Corporation in a 20-TSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The ICL3222IVZ operates across a 3V to 5.5V supply range with a 250kbps data rate and 300mV receiver hysteresis, suitable for legacy RS232 serial communication applications requiring compact packaging.

Key Parameters

Parameter	ICL3222IVZ Value
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	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	20-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the ICL3222IVZ is determined by strict equivalence across the following critical parameters: RS232 protocol compliance, 2/2 driver/receiver configuration, full-duplex operation, 3V to 5.5V supply voltage range, -40°C to 85°C operating temperature, and surface mount packaging. The 20-TSSOP package footprint is the primary mechanical constraint for direct substitution.

Substitute parts are grouped into three categories:

Renesas Direct Equivalents: Parts maintaining identical electrical specifications and the same 20-TSSOP package, differing only in product status (active vs. obsolete) or receiver hysteresis tolerance.

Cross-Manufacturer Direct Substitutes: Texas Instruments and Analog Devices parts with matching 2/2 RS232 transceiver functionality, identical supply voltage and temperature ranges, and compatible packaging (20-TSSOP or 20-SSOP).

Parametric Variants: Parts with minor deviations in data rate or receiver hysteresis that remain functionally compatible within the RS232 protocol specification and maintain all other critical parameters.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temp	Package	Product Status	MSL
ICL3222IVZ	Renesas	RS232	2/2	250kbps	300 mV	3V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Obsolete	3
ICL3222EIVZ	Renesas	RS232	2/2	250kbps	500 mV	3V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	3
ICL3223IVZ	Renesas	RS232	2/2	250kbps	300 mV	3V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	3
MAX3222EIPWR	Texas Instruments	RS232	2/2	500kbps	300 mV	3V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	1
TRS3222EIPWR	Texas Instruments	RS232	2/2	500kbps	300 mV	3V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	1
ADM3222ARSZ	Analog Devices	RS232	2/2	460Kbps	400 mV	3V ~ 5.5V	-40°C ~ 85°C	20-SSOP	Active	1
ADM3222ARUZ	Analog Devices	RS232	2/2	460Kbps	400 mV	3V ~ 5.5V	-40°C ~ 85°C	20-TSSOP	Active	1

Engineering Selection Recommendations

Renesas Ecosystem: ICL3223IVZ is the preferred active-status equivalent from Renesas, maintaining identical electrical specifications to the ICL3222IVZ with the same 20-TSSOP footprint and ROHS3 compliance. ICL3222EIVZ offers the same base platform with higher receiver hysteresis (500mV vs. 300mV), suitable for applications with greater noise margins.

Texas Instruments Alternatives: MAX3222EIPWR and TRS3222EIPWR provide higher data rate capability (500kbps vs. 250kbps) while maintaining identical supply voltage, temperature range, and 20-TSSOP packaging. Both feature superior MSL rating (1 vs. 3), indicating lower moisture sensitivity. These parts are recommended for new designs requiring higher throughput or enhanced reliability in humid environments.

Analog Devices Options: ADM3222ARUZ matches the 20-TSSOP package with 460Kbps data rate and 400mV receiver hysteresis. ADM3222ARSZ variants use the slightly wider 20-SSOP package (0.209" vs. 0.173" width) and require PCB layout verification for footprint compatibility. All Analog Devices variants feature MSL-1 rating and active product status.

Product Status Consideration: The ICL3222IVZ is obsolete. All recommended substitutes maintain active product status, ensuring long-term availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can ICL3222EIVZ directly replace ICL3222IVZ?

A: Yes. Both are Renesas 2/2 RS232 transceivers in 20-TSSOP packaging with identical supply voltage and temperature ranges. The primary difference is receiver hysteresis (500mV vs. 300mV). The higher hysteresis in ICL3222EIVZ provides improved noise immunity and is functionally compatible with ICL3222IVZ applications.

Q: What is the difference between 20-TSSOP and 20-SSOP packages?

A: Both are 20-pin surface mount packages. The 20-TSSOP has a 0.173" width (4.40mm), while 20-SSOP has a 0.209" width (5.30mm). PCB footprints are not interchangeable without layout modification. Verify your PCB design before selecting ADM3222ARSZ variants.

Q: Why do Texas Instruments parts have higher data rates?

A: MAX3222EIPWR and TRS3222EIPWR support 500kbps compared to the ICL3222IVZ's 250kbps. This is a design specification difference between manufacturers. Both rates exceed typical RS232 application requirements and remain fully compatible with standard RS232 protocol.

Q: What does MSL rating mean for component selection?

A: Moisture Sensitivity Level (MSL) indicates how long a component can be exposed to ambient humidity before soldering. MSL-1 (unlimited) parts like MAX3222EIPWR and Analog Devices variants have no time restrictions. MSL-3 parts like ICL3222IVZ must be soldered within 168 hours of package opening. For high-volume or extended storage applications, MSL-1 parts reduce handling risk.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the ICL3222IVZ environmental certification.

Q: Which substitute offers the best availability?

A: MAX3222EIPWR has the highest inventory (63,200 pcs), followed by ADM3222ARUZ-REEL7 (35,780 pcs). Both are active products from established manufacturers with robust supply chains.

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