MAX3222ECPW RS232 Transceiver Interface IC Equivalent & Substitute Parts

Part Overview

The MAX3222ECPW is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments, housed in a 20-TSSOP surface mount package. This component operates across a 3V to 5.5V supply range with a 500 kbps data rate and 300 mV receiver hysteresis. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts must maintain functional compatibility across RS232 protocol requirements, electrical specifications, and mechanical packaging constraints.

Key Parameters

Parameter	MAX3222ECPW
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Drivers/Receivers	2/2
Duplex	Full
Data Rate	500 kbps
Voltage Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Receiver Hysteresis	300 mV
Package/Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the MAX3222ECPW is determined by strict adherence to the following parameters:

Critical Compatibility Parameters:

RS232 protocol compliance (mandatory)
2/2 driver/receiver configuration (mandatory)
Full-duplex operation (mandatory)
3V to 5.5V supply voltage range (mandatory)
Surface mount technology (mandatory)
20-pin package footprint compatibility

Performance Parameters:

Data rate capability (minimum 500 kbps required for direct equivalence)
Receiver hysteresis (300 mV baseline; higher values acceptable)
Operating temperature range (0°C to 70°C minimum; extended ranges acceptable)

Regulatory & Environmental:

ROHS3 compliance (mandatory)
MSL rating (1 or 3 acceptable for storage conditions)

Substitute parts are grouped by their relationship to the main part: parametric equivalents maintain identical electrical specifications, direct equivalents provide functional compatibility with minor parameter variations, and upgrade options extend operating temperature or performance characteristics while maintaining core functionality.

Parameter Comparison

Part Number	Manufacturer	Data Rate	Receiver Hysteresis	Operating Temp	Package	Product Status	Inventory
MAX3222ECPW	Texas Instruments	500 kbps	300 mV	0°C ~ 70°C	20-TSSOP	Obsolete	2036 Pcs
TRS3222ECPW	Texas Instruments	500 kbps	300 mV	0°C ~ 70°C	20-TSSOP	Last Time Buy	1468 Pcs
ICL3222CVZ	Renesas Electronics	250 kbps	300 mV	0°C ~ 70°C	20-TSSOP	Active	7083 Pcs
ICL3222CVZ-T	Renesas Electronics	250 kbps	300 mV	0°C ~ 70°C	20-TSSOP	Active	795 Pcs
ICL3222ECVZ	Renesas Electronics	250 kbps	500 mV	0°C ~ 70°C	20-TSSOP	Active	2300 Pcs
ICL3222ECVZ-T	Renesas Electronics	250 kbps	500 mV	0°C ~ 70°C	20-TSSOP	Active	3700 Pcs
ICL3222EIVZ	Renesas Electronics	250 kbps	500 mV	-40°C ~ 85°C	20-TSSOP	Active	1541 Pcs
ICL3222EIVZ-T	Renesas Electronics	250 kbps	500 mV	-40°C ~ 85°C	20-TSSOP	Active	6050 Pcs
ADM3222ARSZ	Analog Devices Inc.	460 kbps	400 mV	-40°C ~ 85°C	20-SSOP	Active	12700 Pcs
ADM3222ARSZ-REEL	Analog Devices Inc.	460 kbps	400 mV	-40°C ~ 85°C	20-SSOP	Active	1900 Pcs
ADM3222ARSZ-REEL7	Analog Devices Inc.	460 kbps	400 mV	-40°C ~ 85°C	20-SSOP	Active	28600 Pcs

Engineering Selection Recommendations

Parametric Equivalent (Recommended for Direct Replacement): TRS3222ECPW maintains identical electrical and thermal specifications to the MAX3222ECPW. This part is classified as Last Time Buy, indicating continued availability with defined end-of-life support. Selection of TRS3222ECPW is appropriate for applications requiring exact parameter matching and is ROHS3 compliant with MSL-1 rating.

Direct Equivalents (Functional Compatibility): ICL3222CVZ and ICL3222CVZ-T (Renesas Electronics) provide full RS232 2/2 transceiver functionality within the same 20-TSSOP package. These parts operate at 250 kbps, which is lower than the original 500 kbps specification but remains compatible with standard RS232 communication protocols. Both variants are Active status with high inventory availability. The tape-and-reel variant (CVZ-T) is suitable for automated assembly processes.

Extended Temperature Range Options: ICL3222EIVZ and ICL3222EIVZ-T extend the operating temperature range to -40°C to 85°C, supporting applications requiring wider thermal operating windows. These parts maintain the same 20-TSSOP footprint and RS232 protocol compliance. The EIVZ-T variant with Cut Tape & Digi-Reel packaging offers 6050 units in stock.

Alternative Package Consideration: ADM3222ARSZ, ADM3222ARSZ-REEL, and ADM3222ARSZ-REEL7 (Analog Devices Inc.) provide RS232 2/2 transceiver functionality in a 20-SSOP package (0.209", 5.30mm width). These parts operate at 460 kbps with -40°C to 85°C temperature range and MSL-1 rating. The 20-SSOP package differs from the original 20-TSSOP footprint and requires PCB layout verification before selection. ADM3222ARSZ-REEL7 offers the highest inventory (28600 units).

Frequently Asked Questions (FAQ)

Q: Can I use ICL3222CVZ as a direct replacement for MAX3222ECPW? A: ICL3222CVZ is functionally compatible for RS232 2/2 transceiver applications. The primary difference is data rate: ICL3222CVZ operates at 250 kbps versus MAX3222ECPW at 500 kbps. For applications operating below 250 kbps, this substitution is valid. Both parts maintain identical supply voltage (3V to 5.5V), package footprint (20-TSSOP), and ROHS3 compliance.

Q: What is the difference between ICL3222ECVZ and ICL3222EIVZ? A: Both parts are Renesas Electronics RS232 2/2 transceivers in 20-TSSOP packages with 250 kbps data rate and 500 mV receiver hysteresis. The key difference is operating temperature: ICL3222ECVZ operates 0°C to 70°C, while ICL3222EIVZ extends to -40°C to 85°C. Select ICL3222EIVZ for applications requiring extended thermal range.

Q: Why do ADM3222ARSZ parts use a different package (20-SSOP vs. 20-TSSOP)? A: The ADM3222ARSZ series uses a 20-SSOP package (0.209" width) compared to the original 20-TSSOP (0.173" width). While both are 20-pin surface mount packages, the physical dimensions differ. PCB layout and footprint compatibility must be verified before substitution. If the original PCB is designed for 20-TSSOP, the 20-SSOP variant requires layout modification.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed (TRS3222ECPW, ICL3222 series, and ADM3222 series) are ROHS3 compliant, meeting environmental and regulatory requirements equivalent to the original MAX3222ECPW.

Q: What is the difference between tube and tape-and-reel packaging? A: Tube packaging (standard) is suitable for manual assembly and lower-volume applications. Tape-and-reel (TR) and Cut Tape & Digi-Reel (CT) packaging are designed for automated pick-and-place assembly processes. Both packaging formats contain identical components; selection depends on assembly methodology and production volume.

Q: Can I use TRS3222ECPW instead of MAX3222ECPW? A: Yes. TRS3222ECPW is a parametric equivalent with identical electrical specifications, supply voltage, data rate (500 kbps), operating temperature (0°C to 70°C), and 20-TSSOP package. The primary consideration is product status: TRS3222ECPW is Last Time Buy, indicating limited future availability. For new designs, consider ICL3222EIVZ or ADM3222ARSZ-REEL7 for extended product lifecycle support.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message