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SP232ECT-L RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The SP232ECT-L is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support, redesigns, and production continuity. The part operates within a 4.5V to 5.5V supply voltage range and supports data rates up to 240 kbps with a 500 mV receiver hysteresis specification.
Substiute Parts
Key Parameters
| Parameter | SP232ECT-L Value |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Receiver Hysteresis | 500 mV |
| Data Rate | 240 kbps |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the SP232ECT-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
- Voltage - Supply: 4.5V ~ 5.5V
- Package / Case: 16-SOIC (0.295", 7.50mm Width)
- Mounting Type: Surface Mount
Allowable Variation Parameters:
- Receiver Hysteresis: ±150 mV tolerance acceptable (range: 400 mV to 650 mV)
- Data Rate: Minimum 120 kbps acceptable (original: 240 kbps)
- Operating Temperature: Extended range acceptable (original: 0°C ~ 70°C; extended: -40°C ~ 85°C)
- Product Status: Active preferred over obsolete
- Packaging Format: Tube, Tape & Reel (TR), or Cut Tape (CT) acceptable
All substitute parts listed below meet the critical matching parameters and fall within allowable variation ranges.
Parameter Comparison
| Part Number | Manufacturer | Drivers/Receivers | Protocol | Data Rate | Receiver Hysteresis | Operating Temp | Supply Voltage | Package | Product Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|---|
| SP232ECT-L | MaxLinear, Inc. | 2/2 | RS232 | 240 kbps | 500 mV | 0°C ~ 70°C | 4.5V ~ 5.5V | 16-SOIC | Obsolete | Tube |
| SP202ECT-L | MaxLinear, Inc. | 2/2 | RS232 | 240 kbps | 500 mV | 0°C ~ 70°C | 4.5V ~ 5.5V | 16-SOIC | Active | Tube |
| ADM202EARWZ | Analog Devices Inc. | 2/2 | RS232 | 230 kbps | 650 mV | -40°C ~ 85°C | 4.5V ~ 5.5V | 16-SOIC | Active | Tube |
| ADM202EARWZ-REEL | Analog Devices Inc. | 2/2 | RS232 | 230 kbps | 650 mV | -40°C ~ 85°C | 4.5V ~ 5.5V | 16-SOIC | Active | Tape & Reel (TR) |
| ADM202JRWZ | Analog Devices Inc. | 2/2 | RS232 | — | 400 mV | 0°C ~ 70°C | 4.5V ~ 5.5V | 16-SOIC | Active | Tube |
| ADM202JRWZ-REEL | Analog Devices Inc. | 2/2 | RS232 | — | 400 mV | 0°C ~ 70°C | 4.5V ~ 5.5V | 16-SOIC | Active | Tape & Reel (TR) |
| ADM232AARWZ | Analog Devices Inc. | 2/2 | RS232 | 200 kbps | 400 mV | -40°C ~ 85°C | 4.5V ~ 5.5V | 16-SOIC | Active | Tube |
| ADM232AARWZ-REEL | Analog Devices Inc. | 2/2 | RS232 | 200 kbps | 400 mV | -40°C ~ 85°C | 4.5V ~ 5.5V | 16-SOIC | Active | Cut Tape (CT) & Digi-Reel® |
| ADM232LARZ | Analog Devices Inc. | 2/2 | RS232 | 120 kbps | 650 mV | -40°C ~ 85°C | 4.5V ~ 5.5V | 16-SOIC | Active | Tube |
| ADM232LARZ-REEL | Analog Devices Inc. | 2/2 | RS232 | 120 kbps | 650 mV | -40°C ~ 85°C | 4.5V ~ 5.5V | 16-SOIC | Active | Cut Tape (CT) & Digi-Reel® |
| ADM232LJRZ | Analog Devices Inc. | 2/2 | RS232 | 120 kbps | 650 mV | 0°C ~ 70°C | 4.5V ~ 5.5V | 16-SOIC | Active | Tube |
Engineering Selection Recommendations
Primary Substitute (Highest Compatibility): SP202ECT-L is the direct parametric equivalent from MaxLinear, Inc., with identical electrical specifications and operating temperature range. This part maintains active product status and is available in tube packaging, making it the preferred choice for direct replacement in existing designs.
Secondary Substitutes (Analog Devices ADM202 Series): The ADM202EARWZ and ADM202EARWZ-REEL variants provide active product status with extended operating temperature range (-40°C ~ 85°C) and improved moisture sensitivity (MSL 1 vs. MSL 3). These parts are suitable for applications requiring enhanced environmental performance. The ADM202JRWZ and ADM202JRWZ-REEL variants match the original operating temperature range (0°C ~ 70°C) with lower receiver hysteresis (400 mV).
Tertiary Substitutes (Analog Devices ADM232 Series): The ADM232AARWZ, ADM232AARWZ-REEL, ADM232LARZ, ADM232LARZ-REEL, and ADM232LJRZ variants are functionally compatible with reduced data rate specifications (200 kbps or 120 kbps). These parts are suitable for applications where the original 240 kbps data rate is not required. All ADM232 variants feature active product status and RoHS3 compliance.
Compliance Considerations: All substitute parts listed carry RoHS3 compliance status. The SP202ECT-L is RoHS compliant. Analog Devices parts include REACH Unaffected designation. All parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.
Frequently Asked Questions (FAQ)
Q: Can ADM202EARWZ replace SP232ECT-L in a design operating at 0°C to 70°C? A: Yes. The ADM202EARWZ operates across -40°C to 85°C, which encompasses the original 0°C to 70°C range. The 230 kbps data rate and 650 mV receiver hysteresis fall within acceptable variation parameters for RS232 2/2 transceiver applications.
Q: What is the difference between tube and tape & reel packaging options? A: Tube packaging is suitable for manual assembly and lower-volume production. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging are designed for automated pick-and-place assembly and higher-volume manufacturing. Electrical performance is identical; packaging selection depends on assembly process requirements.
Q: Is SP202ECT-L a direct pin-for-pin replacement? A: Yes. SP202ECT-L shares identical package type (16-SOIC), pin count, and electrical specifications with SP232ECT-L. No circuit modifications are required for direct substitution.
Q: Why do some ADM232 variants list no data rate specification? A: ADM202JRWZ and ADM202JRWZ-REEL do not specify data rate in the provided parameters. These parts remain functionally compatible as 2/2 full-duplex RS232 transceivers within the 4.5V to 5.5V supply range and 16-SOIC package. Consult manufacturer datasheets for detailed performance characteristics.
Q: Can I use ADM232LARZ (120 kbps) in place of SP232ECT-L (240 kbps)? A: Substitution is valid only if your application does not require data rates exceeding 120 kbps. The ADM232LARZ is electrically and mechanically compatible but operates at reduced maximum data rate. Verify application bandwidth requirements before selection.
Q: What is the significance of MSL rating differences? A: SP232ECT-L carries MSL 3 (168 hours), while Analog Devices substitutes carry MSL 1 (unlimited). MSL rating indicates moisture sensitivity during storage and handling. Lower MSL ratings provide greater flexibility in storage conditions and extended shelf life without requiring special moisture-controlled environments.
Q: Are all listed substitutes RoHS compliant? A: SP202ECT-L is RoHS compliant. All Analog Devices substitutes (ADM202 and ADM232 series) are RoHS3 compliant. Compliance status is suitable for applications subject to RoHS directives.
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