SP3222ECY-L RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP3222ECY-L is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 20-TSSOP surface mount package. This component is classified as obsolete, though 1809 units remain in stock. The part operates across a 3V to 5.5V supply range with a data rate of 235 Kbps and receiver hysteresis of 300 mV. Due to its obsolete status, identifying active equivalent and substitute parts is essential for ongoing design support, production continuity, and long-term component availability.

Key Parameters

Parameter	SP3222ECY-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	300 mV
Data Rate	235 Kbps
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
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SP3222ECY-L is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

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

Allowable Variation Parameters:

Receiver Hysteresis: 300 mV, 400 mV, or 500 mV
Data Rate: 235 Kbps or higher
Operating Temperature: 0°C ~ 70°C or extended range (-40°C ~ 85°C)
Moisture Sensitivity Level (MSL): 1 or 3

Substitute parts are grouped into three categories based on their relationship to the main part: MFR Recommended variants (same base part number with different packaging), Parametric Equivalents (same manufacturer, identical electrical specifications), and Direct Substitutes (alternative manufacturers meeting all critical parameters).

Parameter Comparison

Part Number	Manufacturer	Receiver Hysteresis	Data Rate	Operating Temperature	MSL	Product Status	Packaging
SP3222ECY-L	MaxLinear, Inc.	300 mV	235 Kbps	0°C ~ 70°C	1	Obsolete	Tube
SP3222ECY-L/TR	MaxLinear, Inc.	300 mV	235 Kbps	0°C ~ 70°C	1	Active	Tape & Reel (TR)
SP3223ECY-L	MaxLinear, Inc.	300 mV	235 Kbps	0°C ~ 70°C	1	Active	Tube
ST3222ECTR	STMicroelectronics	500 mV	250 Kbps	0°C ~ 70°C	3	Active	Cut Tape (CT) & Digi-Reel®
ADM3222ARUZ	Analog Devices Inc.	400 mV	460 Kbps	-40°C ~ 85°C	1	Active	Tube
ADM3222ARUZ-REEL	Analog Devices Inc.	400 mV	460 Kbps	-40°C ~ 85°C	1	Active	Tape & Reel (TR)
ADM3222ARUZ-REEL7	Analog Devices Inc.	400 mV	460 Kbps	-40°C ~ 85°C	1	Active	Cut Tape (CT) & Digi-Reel®
ICL3222CVZ	Renesas Electronics Corporation	300 mV	250 Kbps	0°C ~ 70°C	3	Active	Tube
ICL3222CVZ-T	Renesas Electronics Corporation	300 mV	250 Kbps	0°C ~ 70°C	3	Active	Tape & Reel (TR)
ICL3222ECVZ	Renesas Electronics Corporation	500 mV	250 Kbps	0°C ~ 70°C	3	Active	Tube
ICL3222ECVZ-T	Renesas Electronics Corporation	500 mV	250 Kbps	0°C ~ 70°C	3	Active	Tape & Reel (TR)

Engineering Selection Recommendations

MaxLinear Variants (Preferred for Direct Replacement): SP3222ECY-L/TR and SP3223ECY-L maintain identical electrical specifications to the obsolete SP3222ECY-L. Both are active products with ROHS3 compliance and MSL 1 rating. SP3222ECY-L/TR offers Tape & Reel packaging for automated assembly, while SP3223ECY-L is available in Tube packaging. These parts provide the most direct substitution path with no electrical parameter deviation.

Analog Devices ADM3222 Series (Enhanced Performance): ADM3222ARUZ, ADM3222ARUZ-REEL, and ADM3222ARUZ-REEL7 deliver superior performance characteristics: 460 Kbps data rate (versus 235 Kbps), 400 mV receiver hysteresis, and extended operating temperature range (-40°C ~ 85°C). All variants maintain MSL 1 rating and ROHS3 compliance. These parts are suitable for applications requiring higher data rates or wider temperature operation. Packaging options include Tube, standard Tape & Reel, and Cut Tape & Digi-Reel formats.

Renesas ICL3222 Series (Alternative with MSL 3): ICL3222CVZ, ICL3222CVZ-T, ICL3222ECVZ, and ICL3222ECVZ-T are active Renesas products meeting all critical electrical parameters. The CVZ variants feature 300 mV receiver hysteresis matching the original part, while ECVZ variants provide 500 mV hysteresis. All operate at 250 Kbps data rate. These parts carry MSL 3 rating (168 Hours) and ROHS3 compliance. Packaging includes both Tube and Tape & Reel options.

STMicroelectronics ST3222ECTR (Alternative with Higher Hysteresis): ST3222ECTR is an active STMicroelectronics product with 500 mV receiver hysteresis and 250 Kbps data rate. It carries MSL 3 rating and ROHS3 compliance. This part is available in Cut Tape & Digi-Reel packaging with the highest inventory level (10,100 units). The elevated receiver hysteresis may provide improved noise immunity in certain applications.

Frequently Asked Questions (FAQ)

Q: Can SP3222ECY-L be directly replaced with SP3222ECY-L/TR? A: Yes. Both parts are manufactured by MaxLinear with identical electrical specifications (300 mV hysteresis, 235 Kbps data rate, 0°C ~ 70°C operating range). The only difference is packaging: SP3222ECY-L uses Tube packaging while SP3222ECY-L/TR uses Tape & Reel format. SP3222ECY-L/TR is active and recommended for new designs.

Q: What is the difference between ADM3222ARUZ and ADM3222ARUZ-REEL7? A: Both are identical Analog Devices parts with 460 Kbps data rate and -40°C ~ 85°C operating range. The difference is packaging: ADM3222ARUZ is supplied in Tube format, while ADM3222ARUZ-REEL7 uses Cut Tape & Digi-Reel format. ADM3222ARUZ-REEL7 has significantly higher inventory (35,780 units) and is preferred for high-volume production.

Q: Are Renesas ICL3222 parts compatible with the original SP3222ECY-L? A: Yes, all Renesas ICL3222 variants meet the critical electrical parameters: 2/2 full-duplex RS232 transceiver in 20-TSSOP package with 3V ~ 5.5V supply. However, they carry MSL 3 rating (versus MSL 1 for the original) and operate at 250 Kbps data rate. The receiver hysteresis varies: ICL3222CVZ/CVZ-T feature 300 mV (matching the original), while ICL3222ECVZ/ECVZ-T provide 500 mV.

Q: Which substitute offers the best performance upgrade? A: The Analog Devices ADM3222 series provides the highest data rate (460 Kbps versus 235 Kbps) and extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). ADM3222ARUZ-REEL7 is recommended for applications requiring enhanced performance and high-volume availability.

Q: What does MSL rating mean for component selection? A: Moisture Sensitivity Level (MSL) indicates the component's sensitivity to moisture during storage and handling. MSL 1 (Unlimited) allows indefinite storage without special precautions. MSL 3 (168 Hours) requires controlled storage conditions and limits shelf life to 168 hours after opening the original packaging. For applications with strict reliability requirements, MSL 1 parts are preferred.

Q: Can I use ST3222ECTR as a direct replacement? A: ST3222ECTR meets all critical electrical parameters and is available in high quantity (10,100 units). However, it features 500 mV receiver hysteresis (versus 300 mV in the original) and carries MSL 3 rating. The elevated hysteresis may affect signal detection thresholds in noise-sensitive applications. Verify compatibility with your specific circuit design before implementation.

Q: What packaging format should I select for automated assembly? A: For automated pick-and-place assembly, select Tape & Reel (TR) or Cut Tape & Digi-Reel (CT) formats. SP3222ECY-L/TR, ADM3222ARUZ-REEL, ADM3222ARUZ-REEL7, ICL3222CVZ-T, and ICL3222ECVZ-T are all available in these formats. Tube packaging is suitable for manual assembly or lower-volume applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message