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SP3222ECT-L/TR RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The SP3222ECT-L/TR is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in an 18-SOIC surface mount package. This interface IC operates across a 3V to 5.5V supply range and is designed for serial communication applications requiring RS232 protocol compliance. The part is currently active in production with 3650 units in stock and carries RoHS compliance certification. Substitute parts are necessary to address supply chain flexibility, alternative packaging requirements, extended temperature operating ranges, or higher data rate specifications for specific application demands.
Substiute Parts
Key Parameters
| Parameter | SP3222ECT-L/TR |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Type | Transceiver |
| Protocol | RS232 |
| Drivers/Receivers | 2/2 |
| Duplex | Full |
| Package/Case | 18-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Voltage Supply | 3V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C |
| Data Rate | 235 Kbps |
| Receiver Hysteresis | 300 mV |
| Product Status | Active |
| RoHS Status | RoHS Compliant |
| MSL Rating | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution eligibility for the SP3222ECT-L/TR is determined by the following critical parameters:
- Package/Case: All substitutes must use 18-SOIC (0.295", 7.50mm Width) surface mount configuration for PCB compatibility
- Protocol & Configuration: RS232 protocol with 2/2 drivers/receivers and full-duplex operation are mandatory
- Voltage Supply Range: 3V to 5.5V supply compatibility is required
- Mounting Type: Surface mount technology must be maintained
- Electrical Characteristics: Receiver hysteresis, data rate, and operating temperature ranges may vary within acceptable limits for specific applications
Substitute parts are grouped by manufacturer (Analog Devices Inc./Maxim Integrated and Analog Devices Inc.) and packaging format (Tube, Cut Tape & Digi-Reel, Tape & Reel). Variations in data rate, receiver hysteresis, operating temperature range, and MSL rating reflect different product grades within the same functional family.
Parameter Comparison
| Part Number | Manufacturer | Packaging | Data Rate | Receiver Hysteresis | Operating Temp | RoHS Status | MSL Rating | Inventory |
|---|---|---|---|---|---|---|---|---|
| SP3222ECT-L/TR | MaxLinear, Inc. | Tape & Reel (TR) | 235 Kbps | 300 mV | 0°C ~ 70°C | RoHS Compliant | 3 (168 Hours) | 3650 |
| ADM3222ARWZ | Analog Devices Inc. | Tube | 460 Kbps | 400 mV | -40°C ~ 85°C | ROHS3 Compliant | 1 (Unlimited) | 7600 |
| ADM3222ARWZ-REEL | Analog Devices Inc. | Cut Tape (CT) & Digi-Reel® | 460 Kbps | 400 mV | -40°C ~ 85°C | ROHS3 Compliant | 1 (Unlimited) | 2574 |
| ADM3222ARWZ-REEL7 | Analog Devices Inc. | Cut Tape (CT) & Digi-Reel® | 460 Kbps | 400 mV | -40°C ~ 85°C | ROHS3 Compliant | 1 (Unlimited) | 20200 |
| MAX3222CWN+ | Analog Devices Inc./Maxim Integrated | Tube | 120 Kbps | 300 mV | 0°C ~ 70°C | ROHS3 Compliant | 1 (Unlimited) | 2520 |
| MAX3222CWN+T | Analog Devices Inc./Maxim Integrated | Cut Tape (CT) & Digi-Reel® | 120 Kbps | 300 mV | 0°C ~ 70°C | ROHS3 Compliant | 1 (Unlimited) | 2040 |
| MAX3222ECWN+ | Analog Devices Inc./Maxim Integrated | Tube | 1 Mbps | 500 mV | 0°C ~ 70°C | ROHS3 Compliant | 1 (Unlimited) | 2208 |
| MAX3222EEWN+ | Analog Devices Inc./Maxim Integrated | Tube | 1 Mbps | 500 mV | -40°C ~ 85°C | ROHS3 Compliant | 1 (Unlimited) | 45331 |
| MAX3222EEWN+T | Analog Devices Inc./Maxim Integrated | Cut Tape (CT) & Digi-Reel® | 1 Mbps | 500 mV | -40°C ~ 85°C | ROHS3 Compliant | 1 (Unlimited) | 19195 |
| MAX3222EWN+ | Analog Devices Inc./Maxim Integrated | Tube | 120 Kbps | 300 mV | -40°C ~ 85°C | ROHS3 Compliant | 1 (Unlimited) | 29980 |
| MAX3222EWN+T | Analog Devices Inc./Maxim Integrated | Tape & Reel (TR) | 120 Kbps | 300 mV | -40°C ~ 85°C | ROHS3 Compliant | 1 (Unlimited) | 1871 |
Engineering Selection Recommendations
All listed substitute parts maintain active product status and carry ROHS3 compliance certification, ensuring regulatory alignment with current environmental standards. The SP3222ECT-L/TR operates within a standard industrial temperature range (0°C to 70°C) with RoHS compliance.
For applications requiring extended temperature operation (-40°C to 85°C), the ADM3222ARWZ series and MAX3222E-grade parts provide expanded thermal capability. The ADM3222ARWZ variants offer the highest data rate (460 Kbps) and improved MSL rating (1, Unlimited), suitable for high-reliability applications. The MAX3222EEWN+ and MAX3222EEWN+T variants deliver 1 Mbps data rate with extended temperature range and superior moisture sensitivity performance.
For packaging flexibility, Tube packaging (ADM3222ARWZ, MAX3222CWN+, MAX3222ECWN+, MAX3222EEWN+, MAX3222EWN+) accommodates manual assembly workflows, while Cut Tape & Digi-Reel options (ADM3222ARWZ-REEL, ADM3222ARWZ-REEL7, MAX3222CWN+T, MAX3222EEWN+T) and Tape & Reel formats (MAX3222EWN+T) support automated pick-and-place operations. The ADM3222ARWZ-REEL7 variant provides the highest inventory availability (20200 units).
Frequently Asked Questions (FAQ)
Q: Can MAX3222CWN+ substitute for SP3222ECT-L/TR in all applications?
A: MAX3222CWN+ is electrically compatible within the same 18-SOIC package and voltage supply range. However, it operates at 120 Kbps data rate compared to SP3222ECT-L/TR's 235 Kbps. Selection depends on application data rate requirements. Both maintain identical receiver hysteresis (300 mV) and operating temperature range (0°C to 70°C).
Q: What is the difference between ADM3222ARWZ, ADM3222ARWZ-REEL, and ADM3222ARWZ-REEL7?
A: These three parts are electrically identical with identical electrical specifications (460 Kbps data rate, 400 mV hysteresis, -40°C to 85°C operating range). The differences are packaging format and inventory quantity. ADM3222ARWZ uses Tube packaging, while ADM3222ARWZ-REEL and ADM3222ARWZ-REEL7 use Cut Tape & Digi-Reel format. ADM3222ARWZ-REEL7 has significantly higher stock availability (20200 units).
Q: Which substitute offers the best performance for high-speed RS232 applications?
A: MAX3222EEWN+ and MAX3222EEWN+T both support 1 Mbps data rate with 500 mV receiver hysteresis and extended temperature range (-40°C to 85°C). MAX3222EEWN+ is packaged in Tube format, while MAX3222EEWN+T uses Cut Tape & Digi-Reel for automated assembly. Both carry ROHS3 compliance and MSL rating 1 (Unlimited).
Q: Are all substitutes RoHS compliant?
A: Yes. SP3222ECT-L/TR carries RoHS Compliant certification. All substitute parts carry ROHS3 Compliant certification, which represents the current RoHS standard. ROHS3 compliance is a superset of RoHS requirements and ensures regulatory compatibility.
Q: What packaging format should I select for automated assembly?
A: For automated pick-and-place assembly, select Cut Tape & Digi-Reel format (ADM3222ARWZ-REEL, ADM3222ARWZ-REEL7, MAX3222CWN+T, MAX3222EEWN+T) or Tape & Reel format (SP3222ECT-L/TR, MAX3222EWN+T). Tube packaging (ADM3222ARWZ, MAX3222CWN+, MAX3222ECWN+, MAX3222EEWN+, MAX3222EWN+) is suitable for manual assembly workflows.
Q: Can I use MAX3222EWN+T as a direct replacement for SP3222ECT-L/TR?
A: MAX3222EWN+T is compatible in terms of package (18-SOIC), protocol (RS232 2/2 full-duplex), voltage supply (3V to 5.5V), and receiver hysteresis (300 mV). However, MAX3222EWN+T operates at 120 Kbps compared to SP3222ECT-L/TR's 235 Kbps. Additionally, MAX3222EWN+T provides extended temperature range (-40°C to 85°C) and uses Tape & Reel packaging identical to the original part.
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