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SP211ET-L RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The SP211ET-L is a 4/5 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 28-SOIC surface-mount package. This interface IC operates across the 4.5V to 5.5V supply range with a 120 kbps data rate and supports operating temperatures from -40°C to 85°C. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring this functionality.
Substiute Parts
Key Parameters
| Parameter | SP211ET-L |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 4/5 |
| Duplex | Full |
| Receiver Hysteresis | 500 mV |
| Data Rate | 120 kbps |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution for the SP211ET-L is determined by strict alignment of the following critical parameters:
- Protocol: RS232
- Number of Drivers/Receivers: 4/5
- Duplex: Full
- Data Rate: 120 kbps (minimum requirement)
- Voltage - Supply: 4.5V ~ 5.5V (or compatible subset)
- Operating Temperature: -40°C ~ 85°C (or compatible subset)
- Package / Case: 28-SOIC (0.295", 7.50mm Width)
- Mounting Type: Surface Mount
Substitute parts are grouped by manufacturer and product status. Active parts from Analog Devices Inc. (ADM211 and ADM241 series) and Renesas Electronics Corporation (HIN211 series) meet the core electrical and mechanical requirements. Packaging variants (Tube vs. Tape & Reel) are interchangeable for the same base part number.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Drivers/Receivers | Data Rate | Supply Voltage | Operating Temp | Receiver Hysteresis | Package | MSL |
|---|---|---|---|---|---|---|---|---|---|
| SP211ET-L | MaxLinear, Inc. | Obsolete | 4/5 | 120 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 500 mV | 28-SOIC | 3 (168 Hours) |
| ADM211ARZ | Analog Devices Inc. | Active | 4/5 | 120 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 650 mV | 28-SOIC | 1 (Unlimited) |
| ADM211ARZ-REEL | Analog Devices Inc. | Active | 4/5 | 120 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 650 mV | 28-SOIC | 1 (Unlimited) |
| ADM211EARZ | Analog Devices Inc. | Active | 4/5 | 120 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 650 mV | 28-SOIC | 1 (Unlimited) |
| ADM211EARZ-REEL | Analog Devices Inc. | Active | 4/5 | 120 kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 650 mV | 28-SOIC | 1 (Unlimited) |
| ADM241LARZ | Analog Devices Inc. | Active | 4/5 | 120 kbps | 4.75V ~ 5.25V | -40°C ~ 85°C | 650 mV | 28-SOIC | 1 (Unlimited) |
| ADM241LARZ-REEL | Analog Devices Inc. | Active | 4/5 | 120 kbps | 4.75V ~ 5.25V | -40°C ~ 85°C | 650 mV | 28-SOIC | 1 (Unlimited) |
| ADM241LJRZ | Analog Devices Inc. | Active | 4/5 | 120 kbps | 4.75V ~ 5.25V | 0°C ~ 70°C | 650 mV | 28-SOIC | 1 (Unlimited) |
| ADM241LJRZ-REEL | Analog Devices Inc. | Active | 4/5 | 120 kbps | 4.75V ~ 5.25V | 0°C ~ 70°C | 650 mV | 28-SOIC | 1 (Unlimited) |
| HIN211ECBZ | Renesas Electronics Corporation | Active | 4/5 | 230 kbps | 4.5V ~ 5.5V | 0°C ~ 70°C | 500 mV | 28-SOIC | 3 (168 Hours) |
| HIN211ECBZ-T | Renesas Electronics Corporation | Active | 4/5 | 230 kbps | 4.5V ~ 5.5V | 0°C ~ 70°C | 500 mV | 28-SOIC | 3 (168 Hours) |
Engineering Selection Recommendations
For direct replacement of the obsolete SP211ET-L in applications requiring the full -40°C to 85°C operating temperature range with 4.5V to 5.5V supply voltage, the ADM211ARZ, ADM211ARZ-REEL, ADM211EARZ, and ADM211EARZ-REEL from Analog Devices Inc. are the primary substitutes. These parts are active products with ROHS3 compliance and improved moisture sensitivity ratings (MSL 1 vs. MSL 3).
For applications with relaxed temperature requirements (0°C to 70°C), the ADM241LJRZ and ADM241LJRZ-REEL offer active product status with ROHS3 compliance, though they require a narrower supply voltage range (4.75V to 5.25V).
The HIN211ECBZ and HIN211ECBZ-T from Renesas Electronics Corporation maintain the original receiver hysteresis (500 mV) and MSL rating but operate only within 0°C to 70°C and offer higher data rate capability (230 kbps). These are suitable for applications not requiring the extended -40°C temperature range.
All substitute parts maintain the 28-SOIC package footprint and surface-mount compatibility with the original SP211ET-L design.
Frequently Asked Questions (FAQ)
Q: Can ADM211EARZ replace SP211ET-L in all applications?
A: ADM211EARZ is electrically compatible with SP211ET-L across the critical parameters: 4/5 drivers/receivers, full-duplex RS232, 120 kbps data rate, 4.5V to 5.5V supply, and -40°C to 85°C operating temperature. The 28-SOIC package is identical. The primary difference is receiver hysteresis (650 mV vs. 500 mV) and improved moisture sensitivity (MSL 1 vs. MSL 3). Substitution is valid for designs where the higher hysteresis does not degrade signal integrity.
Q: What is the difference between ADM211ARZ and ADM211EARZ?
A: Both parts are from Analog Devices Inc. with identical electrical specifications and package. The designation difference reflects internal product line variants. Both are active products with ROHS3 compliance and MSL 1 rating. Selection between them depends on availability and supplier inventory.
Q: Why does ADM241LJRZ have a narrower supply voltage range?
A: ADM241LJRZ specifies 4.75V to 5.25V supply voltage compared to the 4.5V to 5.5V range of SP211ET-L and ADM211 variants. This narrower range reflects the part's design specifications. Use ADM241LJRZ only in applications where the supply voltage remains within 4.75V to 5.25V.
Q: Can HIN211ECBZ be used as a direct replacement?
A: HIN211ECBZ meets the core RS232 transceiver requirements and maintains the 500 mV receiver hysteresis of SP211ET-L. However, it operates only within 0°C to 70°C, not the full -40°C to 85°C range. Use HIN211ECBZ only in applications where the operating temperature does not fall below 0°C or exceed 70°C.
Q: What is the difference between Tube and Tape & Reel packaging?
A: Tube packaging (ADM211ARZ, ADM211EARZ) is suitable for manual assembly and lower-volume applications. Tape & Reel packaging (ADM211ARZ-REEL, ADM211EARZ-REEL) is optimized for automated pick-and-place assembly and higher-volume production. Electrical specifications are identical; selection depends on assembly process requirements.
Q: Are all substitute parts ROHS3 compliant?
A: All Analog Devices Inc. substitutes (ADM211 and ADM241 series) and Renesas Electronics Corporation substitutes (HIN211 series) are ROHS3 compliant. The original SP211ET-L is obsolete and does not carry active compliance certification.
Q: What does MSL rating mean for component selection?
A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to moisture before soldering. MSL 1 (Unlimited) allows indefinite storage without moisture control. MSL 3 (168 Hours) requires moisture control and limits storage to 168 hours after opening. Substitute parts with MSL 1 offer more flexible handling and storage compared to SP211ET-L (MSL 3).
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