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SP207ECT-L RS232 Transceiver: Equivalent & Substitute Parts
Part Overview
The SP207ECT-L is a 5/3 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 24-SOIC surface mount package. This interface IC operates within a 4.5V to 5.5V supply range and supports data rates up to 230 kbps with a receiver hysteresis of 500 mV. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | SP207ECT-L Value |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 5/3 |
| Duplex | Full |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Voltage - Supply | 4.5V ~ 5.5V |
| Data Rate | 230 kbps |
| Receiver Hysteresis | 500 mV |
| Operating Temperature | 0°C ~ 70°C |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the SP207ECT-L is determined by the following critical parameters:
- Protocol: RS232 (mandatory match)
- Number of Drivers/Receivers: 5/3 (mandatory match)
- Duplex: Full (mandatory match)
- Package / Case: 24-SOIC (mandatory match)
- Mounting Type: Surface Mount (mandatory match)
- Voltage - Supply: 4.5V ~ 5.5V (compatible range required)
Substitute parts are grouped into two categories based on these criteria:
Category 1: Active Status Substitutes — Parts with active product status from Analog Devices Inc. and Maxim Integrated that meet all mandatory electrical and mechanical parameters. These parts offer extended operating temperature ranges and improved compliance certifications.
Category 2: Obsolete Status Substitutes — Parts with obsolete product status that maintain electrical and mechanical compatibility but may have limited availability.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Drivers/Receivers | Data Rate | Receiver Hysteresis | Voltage - Supply | Operating Temperature | Package | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|
| SP207ECT-L | MaxLinear, Inc. | Obsolete | 5/3 | 230 kbps | 500 mV | 4.5V ~ 5.5V | 0°C ~ 70°C | 24-SOIC | — |
| ADM207ARZ | Analog Devices Inc. | Active | 5/3 | 120 kbps | 650 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Tube |
| ADM207ARZ-REEL | Analog Devices Inc. | Active | 5/3 | 120 kbps | 650 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Tape & Reel (TR) |
| ADM207EARZ | Analog Devices Inc. | Active | 5/3 | 230 kbps | 650 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Tube |
| ADM207EARZ-REEL | Analog Devices Inc. | Active | 5/3 | 230 kbps | 650 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Tape & Reel (TR) |
| MAX207CDW | Texas Instruments | Obsolete | 5/3 | 120 kbps | 500 mV | 4.75V ~ 5.25V | 0°C ~ 70°C | 24-SOIC | Tube |
| MAX207CDWR | Texas Instruments | Obsolete | 5/3 | 120 kbps | 500 mV | 4.75V ~ 5.25V | 0°C ~ 70°C | 24-SOIC | Tape & Reel (TR) |
| MAX207CWG+ | Analog Devices Inc./Maxim Integrated | Active | 5/3 | 120 kbps | 500 mV | 4.75V ~ 5.25V | 0°C ~ 70°C | 24-SOIC | Tube |
| MAX207CWG+T | Analog Devices Inc./Maxim Integrated | Active | 5/3 | 120 kbps | 500 mV | 4.75V ~ 5.25V | 0°C ~ 70°C | 24-SOIC | Tape & Reel (TR) |
| MAX207ECWG+ | Analog Devices Inc./Maxim Integrated | Active | 5/3 | 120 kbps | 500 mV | 4.75V ~ 5.25V | 0°C ~ 70°C | 24-SOIC | Tube |
| MAX207ECWG+T | Analog Devices Inc./Maxim Integrated | Active | 5/3 | 120 kbps | 500 mV | 4.75V ~ 5.25V | 0°C ~ 70°C | 24-SOIC | Tape & Reel (TR) |
Engineering Selection Recommendations
Primary Recommendation: ADM207EARZ or ADM207EARZ-REEL
The ADM207EARZ series from Analog Devices Inc. provides the closest functional match to the SP207ECT-L. Both parts support 230 kbps data rates and maintain the 5/3 full-duplex RS232 transceiver configuration in a 24-SOIC package. The ADM207EARZ series carries active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring long-term availability and regulatory compliance. The extended operating temperature range (-40°C to 85°C) exceeds the original part's specification (0°C to 70°C), providing greater thermal margin for industrial applications.
Secondary Recommendation: MAX207CWG+ or MAX207CWG+T
The MAX207CWG+ series from Analog Devices Inc./Maxim Integrated offers active product status with ROHS3 compliance. While these parts operate at 120 kbps (lower than the original 230 kbps), they maintain full electrical and mechanical compatibility within the 24-SOIC package. These parts are suitable for applications where the lower data rate does not impact system performance.
Obsolete Status Alternatives: MAX207CDW or MAX207CDWR
The MAX207CDW series from Texas Instruments maintains electrical and mechanical compatibility but carries obsolete product status. These parts should be considered only when inventory constraints or legacy system requirements necessitate their use.
Frequently Asked Questions (FAQ)
Q: Can ADM207EARZ directly replace SP207ECT-L in existing designs?
A: Yes. Both parts share identical 5/3 full-duplex RS232 transceiver functionality, 24-SOIC package geometry, and compatible supply voltage ranges (4.5V to 5.5V). The ADM207EARZ supports the same 230 kbps data rate and operates within the original part's temperature specification. No circuit modifications are required.
Q: What is the difference between ADM207EARZ and ADM207ARZ?
A: Both are Analog Devices Inc. parts in 24-SOIC packages with active product status. The primary difference is data rate: ADM207EARZ supports 230 kbps, while ADM207ARZ supports 120 kbps. For applications requiring 230 kbps operation, ADM207EARZ is the appropriate selection.
Q: Does packaging type (Tube vs. Tape & Reel) affect electrical performance?
A: No. Tube and Tape & Reel packaging contain identical die and electrical specifications. Packaging selection depends on assembly process requirements and volume handling. Tape & Reel packaging is standard for automated pick-and-place assembly, while Tube packaging is used for manual assembly or lower-volume applications.
Q: Why do some substitutes have lower data rates (120 kbps vs. 230 kbps)?
A: The MAX207 series variants operate at different maximum data rates due to internal design differences. Parts rated for 120 kbps are electrically compatible with the SP207ECT-L but operate at reduced bandwidth. Selection depends on system requirements; if 230 kbps operation is mandatory, ADM207EARZ is required.
Q: Are all substitute parts ROHS3 compliant?
A: All active-status substitute parts listed (ADM207 and MAX207 series from Analog Devices Inc./Maxim Integrated) carry ROHS3 compliance certification. Obsolete parts (MAX207CDW series from Texas Instruments) also carry ROHS3 compliance. Compliance status is provided in the detailed specifications.
Q: What is the significance of receiver hysteresis differences (500 mV vs. 650 mV)?
A: Receiver hysteresis affects noise immunity and signal transition characteristics. The SP207ECT-L specifies 500 mV hysteresis, while ADM207 parts specify 650 mV. Both values are within standard RS232 operating margins. The higher hysteresis in ADM207 parts provides improved noise rejection in electrically noisy environments.
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