ICL3222ECVZ RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The ICL3222ECVZ 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 250 kbps data rate and 500 mV receiver hysteresis, designed for industrial and commercial serial communication applications. The part is currently in active production status with 2300 units in stock and carries ROHS3 compliance certification.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging or performance specifications better suit application requirements, or when extended operating temperature ranges are required for harsh environment deployments.

Key Parameters

Parameter	ICL3222ECVZ
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Drivers/Receivers	2/2
Duplex	Full
Package	20-TSSOP (0.173", 4.40mm Width)
Voltage Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Data Rate	250 kbps
Receiver Hysteresis	500 mV
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution logic for the ICL3222ECVZ is determined by the following critical parameters: RS232 protocol compliance, 2/2 driver/receiver configuration, full-duplex operation, 20-pin TSSOP or compatible package footprint, 3V to 5.5V supply voltage range, and surface mount technology. Parts are grouped into three categories based on substitution compatibility:

Direct Substitutes maintain identical electrical specifications and package dimensions, allowing pin-for-pin replacement without circuit modification. These include MAX3222ECPWR and TRS3222ECPW from Texas Instruments.

Upgrade Substitutes provide enhanced performance characteristics such as extended operating temperature ranges (-40°C to 85°C), improved MSL ratings (1 vs. 3), or higher data rates (500 kbps vs. 250 kbps), while maintaining full electrical and mechanical compatibility. These include MAX3222EIPWR and TRS3222EIPWR.

Similar Substitutes share the same RS232 protocol, driver/receiver configuration, and supply voltage range but use alternative package variants (20-SSOP vs. 20-TSSOP) or slightly different electrical parameters (receiver hysteresis, data rate). These require PCB layout verification and include ADM3222 series parts from Analog Devices Inc.

Parameter Comparison

Part Number	Manufacturer	Package	Data Rate	Receiver Hysteresis	Operating Temp	MSL Rating	Product Status
ICL3222ECVZ	Renesas	20-TSSOP	250 kbps	500 mV	0°C ~ 70°C	3 (168h)	Active
MAX3222ECPWR	Texas Instruments	20-TSSOP	500 kbps	300 mV	0°C ~ 70°C	1 (Unlimited)	Active
TRS3222ECPW	Texas Instruments	20-TSSOP	500 kbps	300 mV	0°C ~ 70°C	1 (Unlimited)	Last Time Buy
MAX3222EIPWR	Texas Instruments	20-TSSOP	500 kbps	300 mV	-40°C ~ 85°C	1 (Unlimited)	Active
TRS3222EIPWR	Texas Instruments	20-TSSOP	500 kbps	300 mV	-40°C ~ 85°C	1 (Unlimited)	Active
ADM3222ARSZ	Analog Devices	20-SSOP	460 kbps	400 mV	-40°C ~ 85°C	1 (Unlimited)	Active
ADM3222ARSZ-REEL	Analog Devices	20-SSOP	460 kbps	400 mV	-40°C ~ 85°C	1 (Unlimited)	Active
ADM3222ARSZ-REEL7	Analog Devices	20-SSOP	460 kbps	400 mV	-40°C ~ 85°C	1 (Unlimited)	Active
ADM3222ARUZ	Analog Devices	20-TSSOP	460 kbps	400 mV	-40°C ~ 85°C	1 (Unlimited)	Active
ADM3222ARUZ-REEL	Analog Devices	20-TSSOP	460 kbps	400 mV	-40°C ~ 85°C	1 (Unlimited)	Active
ADM3222ARUZ-REEL7	Analog Devices	20-TSSOP	460 kbps	400 mV	-40°C ~ 85°C	1 (Unlimited)	Active

Engineering Selection Recommendations

For Direct Replacement: MAX3222ECPWR and TRS3222ECPW provide identical package compatibility and electrical interface with the ICL3222ECVZ. Both parts maintain ROHS3 compliance and are suitable for applications operating within the 0°C to 70°C temperature range. MAX3222ECPWR is preferred due to active product status and higher inventory availability (4400 units). TRS3222ECPW carries Last Time Buy status, indicating limited future availability.

For Extended Temperature Applications: MAX3222EIPWR and TRS3222EIPWR extend the operating temperature range to -40°C to 85°C while maintaining identical package footprints and RS232 protocol compliance. Both parts feature improved MSL ratings (1 vs. 3) and are suitable for industrial and automotive environments. MAX3222EIPWR offers significantly higher inventory (63200 units) and active product status.

For Alternative Package Configurations: ADM3222 series parts from Analog Devices Inc. provide RS232 transceiver functionality with 2/2 driver/receiver configuration across extended temperature ranges. The ADM3222ARUZ variants use the 20-TSSOP package matching the ICL3222ECVZ footprint, while ADM3222ARSZ variants use the 20-SSOP package (0.209" width vs. 0.173"). All ADM3222 variants carry active product status and unlimited MSL ratings. ADM3222ARUZ-REEL7 offers the highest inventory (35780 units) among Analog Devices options.

Compliance Considerations: All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the ICL3222ECVZ. All parts carry EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can MAX3222ECPWR replace ICL3222ECVZ in existing designs without PCB modification?

A: Yes. Both parts use identical 20-TSSOP package dimensions (0.173", 4.40mm width) with matching pin configurations for 2/2 RS232 transceiver operation. No PCB layout changes are required for direct substitution.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (MAX3222ECPWR, TRS3222ECPW) maintain identical operating temperature ranges (0°C to 70°C) and MSL ratings as the ICL3222ECVZ. Upgrade substitutes (MAX3222EIPWR, TRS3222EIPWR) extend the operating temperature to -40°C to 85°C and improve MSL ratings to 1 (unlimited), providing enhanced reliability for harsh environments.

Q: Why do ADM3222 parts show different receiver hysteresis and data rate values?

A: ADM3222 series transceivers from Analog Devices Inc. are designed with different electrical specifications. The 400 mV receiver hysteresis and 460 kbps data rate are within the RS232 protocol specification and provide functional equivalence for serial communication applications. These differences do not affect pin compatibility or protocol compliance.

Q: Can I use ADM3222ARSZ (20-SSOP package) as a substitute for ICL3222ECVZ (20-TSSOP package)?

A: ADM3222ARSZ uses a 20-SSOP package with 0.209" width compared to the 0.173" width of 20-TSSOP. This package difference requires PCB layout verification and potential footprint redesign. ADM3222ARUZ variants use the matching 20-TSSOP package and are preferred for direct PCB compatibility.

Q: What is the significance of MSL rating differences between parts?

A: MSL (Moisture Sensitivity Level) rating 3 (168 hours) for ICL3222ECVZ requires baking before reflow soldering if the part has been exposed to moisture for more than 168 hours. MSL rating 1 (unlimited) for substitute parts eliminates this requirement, reducing manufacturing process complexity and improving shelf life management.

Q: Which substitute part offers the best inventory availability?

A: MAX3222EIPWR from Texas Instruments offers the highest inventory with 63200 units in stock, followed by ADM3222ARUZ-REEL7 from Analog Devices with 35780 units. Both parts are in active production status.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and REACH unaffected status, matching the regulatory requirements of the ICL3222ECVZ.

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