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SP202ECT-L/TR RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The SP202ECT-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 range and supports data rates up to 240 kbps with a receiver hysteresis of 500 mV. The part is RoHS compliant and currently in active production status with 2,579 units in stock.
Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for components with comparable electrical and mechanical characteristics. Substitute parts must maintain compatibility across critical parameters including protocol, transceiver configuration, supply voltage, package type, and operating temperature range.
Substiute Parts
Key Parameters
| Parameter | SP202ECT-L/TR |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Protocol | RS232 |
| Type | Transceiver |
| 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) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the SP202ECT-L/TR is determined by the following critical parameters:
Primary Compatibility Criteria:
- Protocol: RS232
- Transceiver Configuration: 2/2 (2 drivers, 2 receivers)
- Duplex Mode: Full
- Supply Voltage Range: 4.5V ~ 5.5V (minimum overlap required)
- Package Type: 16-SOIC surface mount
- Mounting Type: Surface Mount
Secondary Compatibility Considerations:
- Data Rate: 240 kbps or higher
- Receiver Hysteresis: 500 mV or lower (more sensitive threshold acceptable)
- Operating Temperature: Must encompass or exceed 0°C ~ 70°C range
- RoHS Compliance: Required for regulatory alignment
Substitute parts are grouped into two categories: parametric equivalents from MaxLinear (identical electrical specifications with packaging variations) and manufacturer-recommended alternatives from Analog Devices (functionally compatible with minor parameter variations within acceptable engineering tolerances).
Parameter Comparison
| Part Number | Manufacturer | Protocol | Drivers/Receivers | Data Rate | Receiver Hysteresis | Supply Voltage | Operating Temp | Package | RoHS Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| SP202ECT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | 240 kbps | 500 mV | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC (TR) | RoHS Compliant | 2,579 |
| SP232ACT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | 240 kbps | 500 mV | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC (TR) | RoHS Compliant | 3,381 |
| SP232ECT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | 240 kbps | 500 mV | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC (CT) | ROHS3 Compliant | 2,619 |
| ADM202EARWZ | Analog Devices Inc. | RS232 | 2/2 | 230 kbps | 650 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC (Tube) | ROHS3 Compliant | 1,600 |
| ADM202EARWZ-REEL | Analog Devices Inc. | RS232 | 2/2 | 230 kbps | 650 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC (TR) | ROHS3 Compliant | 2,021 |
| ADM202JRWZ | Analog Devices Inc. | RS232 | 2/2 | — | 400 mV | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC (Tube) | ROHS3 Compliant | 2,814 |
| ADM202JRWZ-REEL | Analog Devices Inc. | RS232 | 2/2 | — | 400 mV | 4.5V ~ 5.5V | 0°C ~ 70°C | 16-SOIC (TR) | ROHS3 Compliant | 2,530 |
| ADM232AARWZ | Analog Devices Inc. | RS232 | 2/2 | 200 kbps | 400 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC (Tube) | ROHS3 Compliant | 5,200 |
| ADM232AARWZ-REEL | Analog Devices Inc. | RS232 | 2/2 | 200 kbps | 400 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC (CT) | ROHS3 Compliant | 3,160 |
| ADM232LARZ | Analog Devices Inc. | RS232 | 2/2 | 120 kbps | 650 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC (Tube) | ROHS3 Compliant | 1,110 |
| ADM232LARZ-REEL | Analog Devices Inc. | RS232 | 2/2 | 120 kbps | 650 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 16-SOIC (CT) | ROHS3 Compliant | 5,200 |
Engineering Selection Recommendations
MaxLinear Parametric Equivalents (SP232 Series)
SP232ACT-L/TR and SP232ECT-L/TR are direct parametric equivalents to the SP202ECT-L/TR. Both maintain identical electrical specifications: 2/2 transceiver configuration, 240 kbps data rate, 500 mV receiver hysteresis, and 4.5V to 5.5V supply voltage. The primary distinction is packaging format: SP232ACT-L/TR is supplied in Tape & Reel (TR) format, while SP232ECT-L/TR is supplied in Cut Tape (CT) & Digi-Reel® format. Both are RoHS compliant and suitable for direct substitution in applications requiring identical electrical performance. SP232ACT-L/TR offers higher inventory availability (3,381 units) compared to the primary part.
Analog Devices ADM202 Series (Extended Temperature Range)
ADM202EARWZ and ADM202EARWZ-REEL provide extended operating temperature range (-40°C to 85°C) while maintaining the 4.5V to 5.5V supply voltage and 2/2 transceiver configuration. Data rate is specified at 230 kbps (10 kbps below the primary part) and receiver hysteresis is 650 mV (150 mV higher threshold). These parts are suitable for applications requiring operation beyond the 0°C to 70°C range of the SP202ECT-L/TR. ROHS3 compliance and MSL 1 rating provide superior moisture handling characteristics.
ADM202JRWZ and ADM202JRWZ-REEL maintain the 0°C to 70°C operating temperature range matching the primary part, with 400 mV receiver hysteresis (more sensitive than the primary part). Data rate is not specified for this variant. These parts are suitable for cost-optimized designs where extended temperature operation is not required.
Analog Devices ADM232 Series (Lower Data Rate)
ADM232AARWZ and ADM232AARWZ-REEL operate at 200 kbps data rate with 400 mV receiver hysteresis and extended temperature range (-40°C to 85°C). These parts are suitable for applications where the 240 kbps capability of the primary part exceeds system requirements and extended temperature operation is beneficial.
ADM232LARZ and ADM232LARZ-REEL operate at 120 kbps data rate with 650 mV receiver hysteresis and extended temperature range (-40°C to 85°C). These parts are suitable for low-speed RS232 communication applications where data rate requirements are significantly lower than the primary part's 240 kbps specification.
All Analog Devices alternatives are ROHS3 compliant with MSL 1 rating (unlimited moisture exposure), providing superior reliability characteristics compared to the primary part's MSL 3 rating.
Frequently Asked Questions (FAQ)
Q: Can SP232ACT-L/TR directly replace SP202ECT-L/TR in production?
A: Yes. SP232ACT-L/TR is a parametric equivalent with identical electrical specifications (2/2 transceiver, 240 kbps, 500 mV hysteresis, 4.5V–5.5V supply, 0°C–70°C operating range) and identical 16-SOIC package. The only difference is the base product number designation. Both are RoHS compliant and suitable for direct substitution without design modification.
Q: What is the difference between SP232ECT-L/TR and SP232ACT-L/TR?
A: Both parts are parametrically identical. The difference is packaging format: SP232ACT-L/TR uses Tape & Reel (TR) format, while SP232ECT-L/TR uses Cut Tape (CT) & Digi-Reel® format. Selection depends on manufacturing process requirements. SP232ECT-L/TR also carries ROHS3 compliance versus RoHS Compliant for SP232ACT-L/TR.
Q: Can Analog Devices ADM202 or ADM232 parts replace the SP202ECT-L/TR?
A: Functional substitution is possible with design considerations. All Analog Devices alternatives maintain the 2/2 transceiver configuration, RS232 protocol, 4.5V–5.5V supply voltage, and 16-SOIC package. However, data rate and receiver hysteresis specifications vary. ADM202EARWZ-REEL and ADM202JRWZ-REEL are closest matches for the 0°C–70°C operating range. Extended temperature variants (ADM202EARWZ-REEL, ADM232AARWZ-REEL, ADM232LARZ-REEL) provide -40°C to 85°C operation if required. Lower data rate variants (ADM232 series) are suitable only if application requirements do not exceed their specified data rates.
Q: What does receiver hysteresis mean, and why does it vary among substitutes?
A: Receiver hysteresis defines the voltage difference between the rising and falling threshold levels for RS232 input signals. The primary part specifies 500 mV hysteresis. Lower hysteresis values (400 mV in ADM202JRWZ and ADM232 series) provide more sensitive threshold detection. Higher hysteresis values (650 mV in ADM202EARWZ and ADM232LARZ) provide more robust noise immunity. Selection depends on signal integrity requirements in the application.
Q: Why do some Analog Devices parts have unspecified data rates?
A: ADM202JRWZ and ADM202JRWZ-REEL do not specify data rate in the provided parameters. This indicates the parts are rated for RS232 operation without a specific maximum data rate guarantee. These parts are suitable for general RS232 communication but should not be selected for applications requiring guaranteed 240 kbps performance.
Q: What is the significance of MSL (Moisture Sensitivity Level) differences?
A: The primary part carries MSL 3 (168 hours maximum exposure before reflow). Analog Devices alternatives carry MSL 1 (unlimited moisture exposure). MSL 1 rated parts provide superior reliability in humid storage conditions and extended shelf life without requiring desiccant packaging or baking procedures before assembly.
Q: Are all substitute parts RoHS compliant?
A: Yes. The primary part is RoHS Compliant. SP232ECT-L/TR is ROHS3 Compliant. All Analog Devices alternatives are ROHS3 Compliant. ROHS3 represents the current RoHS 3 directive compliance standard. All parts meet regulatory requirements for lead-free and restricted substance compliance.
Q: Which substitute offers the best inventory availability?
A: ADM232AARWZ and ADM232LARZ-REEL each offer 5,200 units in stock, the highest availability among all listed parts. SP232ACT-L/TR offers 3,381 units. If immediate availability is critical, these parts should be prioritized, provided their electrical specifications meet application requirements.
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