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SP232ACT-L/TR RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The SP232ACT-L/TR is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 16-SOIC surface mount package. This interface IC operates within the 4.5V to 5.5V supply voltage range and supports data rates up to 240 kbps across the 0°C to 70°C operating temperature range. The device is RoHS Compliant and carries an MSL rating of 3 (168 Hours). As an active product with established market availability, equivalent and substitute parts are identified to support procurement flexibility, design redundancy, and supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | SP232ACT-L/TR |
|---|---|
| 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) |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution eligibility for the SP232ACT-L/TR is determined by strict alignment of the following critical parameters:
- Protocol: RS232
- Number of Drivers/Receivers: 2/2
- Duplex: Full
- Voltage - Supply: 4.5V ~ 5.5V
- Mounting Type: Surface Mount
- Package / Case: 16-SOIC (0.295", 7.50mm Width)
Substitute parts are grouped into two categories:
Parametric Equivalent: SP232ECT-L/TR (MaxLinear, Inc.) — identical electrical specifications and base product number with alternative packaging configuration (Cut Tape & Digi-Reel® instead of Tape & Reel).
Manufacturer Recommended Substitutes: ADM202 and ADM232 series devices (Analog Devices Inc.) — meet all critical electrical and mechanical parameters while offering extended operating temperature ranges (-40°C to 85°C) and improved moisture sensitivity ratings (MSL 1, Unlimited). These devices support the same RS232 protocol, 2/2 driver/receiver configuration, full-duplex operation, and 16-SOIC package footprint.
Parameter Comparison
| Part Number | Manufacturer | Protocol | Drivers/Receivers | Duplex | Receiver Hysteresis | Data Rate | Supply Voltage | Operating Temperature | Package | RoHS Status | MSL |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SP232ACT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | Full | 500 mV | 240 kbps | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC | RoHS Compliant | 3 (168 Hours) |
| SP232ECT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | Full | 500 mV | 240 kbps | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 3 (168 Hours) |
| ADM202EARWZ | Analog Devices Inc. | RS232 | 2/2 | Full | 650 mV | 230 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
| ADM202EARWZ-REEL | Analog Devices Inc. | RS232 | 2/2 | Full | 650 mV | 230 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
| ADM202JRWZ | Analog Devices Inc. | RS232 | 2/2 | Full | 400 mV | — | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
| ADM202JRWZ-REEL | Analog Devices Inc. | RS232 | 2/2 | Full | 400 mV | — | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
| ADM232AARWZ | Analog Devices Inc. | RS232 | 2/2 | Full | 400 mV | 200 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
| ADM232AARWZ-REEL | Analog Devices Inc. | RS232 | 2/2 | Full | 400 mV | 200 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
| ADM232LARZ | Analog Devices Inc. | RS232 | 2/2 | Full | 650 mV | 120 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
| ADM232LARZ-REEL | Analog Devices Inc. | RS232 | 2/2 | Full | 650 mV | 120 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
| ADM232LJRZ | Analog Devices Inc. | RS232 | 2/2 | Full | 650 mV | 120 kbps | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC | ROHS3 Compliant | 1 (Unlimited) |
Engineering Selection Recommendations
For Direct Replacement (Identical Specifications): SP232ECT-L/TR is the parametric equivalent to SP232ACT-L/TR. Both devices share identical electrical performance (240 kbps data rate, 500 mV receiver hysteresis, 0°C to 70°C operating range) and mechanical compatibility (16-SOIC package). The primary difference is packaging format: SP232ECT-L/TR is supplied in Cut Tape & Digi-Reel® configuration versus Tape & Reel for the SP232ACT-L/TR. Both carry RoHS compliance and MSL 3 ratings. Selection between these two depends on procurement and assembly line requirements.
For Extended Operating Temperature and Improved Moisture Handling: Analog Devices ADM202 and ADM232 series devices provide superior environmental performance. The ADM202EARWZ and ADM202EARWZ-REEL extend the operating temperature range to -40°C to 85°C and reduce MSL to 1 (Unlimited), while maintaining 230 kbps data rate and 650 mV receiver hysteresis. These are suitable for applications requiring broader temperature operation or extended storage without bake-out procedures.
For Reduced Data Rate Applications: ADM232LARZ, ADM232LARZ-REEL, and ADM232LJRZ operate at 120 kbps, meeting the RS232 protocol requirements for lower-speed serial communication. These devices maintain full 2/2 driver/receiver configuration and 16-SOIC package compatibility while offering MSL 1 ratings and extended temperature ranges (except ADM232LJRZ, which matches the 0°C to 70°C range of the original part).
For Intermediate Data Rate Requirements: ADM232AARWZ and ADM232AARWZ-REEL support 200 kbps operation with 400 mV receiver hysteresis, extended temperature range (-40°C to 85°C), and MSL 1 rating. These devices bridge the performance gap between the original 240 kbps specification and lower-speed alternatives.
All substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with current environmental standards.
Frequently Asked Questions (FAQ)
Q: Can SP232ECT-L/TR be used as a direct drop-in replacement for SP232ACT-L/TR?
A: Yes. SP232ECT-L/TR is a parametric equivalent with identical electrical specifications (240 kbps data rate, 500 mV receiver hysteresis, 4.5V to 5.5V supply, 0°C to 70°C operating range) and mechanical footprint (16-SOIC package). The only difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Verify that your assembly process accommodates the alternative packaging configuration.
Q: What are the key differences between MaxLinear SP232 and Analog Devices ADM202/ADM232 devices?
A: Both families meet the core RS232 2/2 transceiver requirements and 16-SOIC package specification. Analog Devices devices offer extended operating temperature ranges (-40°C to 85°C versus 0°C to 70°C) and improved moisture sensitivity ratings (MSL 1 Unlimited versus MSL 3 168 Hours). Data rates vary: SP232ACT-L/TR operates at 240 kbps, ADM202EARWZ at 230 kbps, ADM232AARWZ at 200 kbps, and ADM232LARZ/ADM232LJRZ at 120 kbps. Receiver hysteresis also differs across the ADM202/ADM232 lineup (400 mV to 650 mV).
Q: Are all substitute parts RoHS compliant?
A: Yes. SP232ECT-L/TR carries RoHS Compliant status. All Analog Devices ADM202 and ADM232 devices listed carry ROHS3 Compliant status and are REACH Unaffected, meeting current environmental and regulatory requirements.
Q: Which substitute part should I select for applications requiring extended temperature operation?
A: ADM202EARWZ, ADM202EARWZ-REEL, ADM232AARWZ, ADM232AARWZ-REEL, ADM232LARZ, and ADM232LARZ-REEL all support -40°C to 85°C operating range. Select based on required data rate: 230 kbps (ADM202EARWZ series), 200 kbps (ADM232AARWZ series), or 120 kbps (ADM232LARZ series).
Q: What is the significance of MSL rating differences?
A: MSL 3 (168 Hours) indicates the device must be baked out after 168 hours of exposure to ambient humidity before reflow soldering. MSL 1 (Unlimited) means no moisture sensitivity restrictions apply. Analog Devices devices with MSL 1 offer simplified handling and storage procedures, reducing production risk in high-humidity environments.
Q: Can I substitute a lower data rate device (120 kbps) for the original 240 kbps part?
A: Substitution is possible only if your application does not require the full 240 kbps bandwidth. ADM232LARZ, ADM232LARZ-REEL, and ADM232LJRZ operate at 120 kbps and maintain full RS232 2/2 transceiver functionality and 16-SOIC package compatibility. Confirm that your serial communication protocol and system timing accommodate the reduced data rate.
Q: What packaging options are available for substitute parts?
A: SP232ECT-L/TR is supplied in Cut Tape & Digi-Reel®. Analog Devices ADM202 and ADM232 devices are available in both Tube and Tape & Reel (TR) or Cut Tape & Digi-Reel® configurations. Select packaging based on your assembly line requirements and volume needs.
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