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TRS211IDW Equivalent & Substitute Parts
Part Overview
The TRS211IDW is a 4/5 full-duplex RS232 transceiver IC in 28-SOIC surface mount packaging, manufactured by Texas Instruments. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The TRS211IDW operates across a 4.5V to 5.5V supply range with a 120 kbps data rate and supports operating temperatures from -40°C to 85°C. Identifying compatible substitutes ensures design continuity and supply chain flexibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TRS211IDW |
| Manufacturer | Texas Instruments |
| Category | Interface |
| 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 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the TRS211IDW is determined by strict electrical and mechanical compatibility across the following critical parameters:
Primary Substitution Criteria:
- Protocol: RS232
- Number of Drivers/Receivers: 4/5 configuration
- Duplex: Full
- Receiver Hysteresis: 500 mV
- Data Rate: 120 kbps (minimum requirement)
- Voltage Supply: 4.5V ~ 5.5V
- Operating Temperature: -40°C ~ 85°C (or compatible range)
- Package / Case: 28-SOIC (0.295", 7.50mm Width)
- Mounting Type: Surface Mount
Substitute parts are grouped into three categories based on their relationship to the main part:
MFR Recommended Substitutes: Parts explicitly recommended by manufacturers as direct replacements, with active product status and full parameter alignment.
Direct Manufacturer Equivalents: Parts from alternative manufacturers meeting all electrical and mechanical specifications with active status.
Parametric Equivalents: Parts meeting core electrical parameters but with variations in packaging format (tube vs. tape & reel) or minor operational differences that do not affect functional compatibility in the 28-SOIC form factor.
Parameter Comparison
| Part Number | Manufacturer | Drivers/Receivers | Data Rate | Operating Temp | Supply Voltage | Package | Product Status | Packaging Format |
|---|---|---|---|---|---|---|---|---|
| TRS211IDW | Texas Instruments | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Obsolete | Tube |
| MAX211IDWR | Texas Instruments | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tape & Reel |
| MAX211EEWI+T | Analog Devices Inc./Maxim Integrated | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tape & Reel |
| SP211ECT-L/TR | MaxLinear, Inc. | 4/5 | 230 kbps | 0°C ~ 70°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tape & Reel |
| MAX211EEWI+ | Analog Devices Inc./Maxim Integrated | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tube |
| MAX211EWI+ | Analog Devices Inc./Maxim Integrated | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tube |
| MAX211IDW | Texas Instruments | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Last Time Buy | Tube |
| MAX213EEWI+ | Analog Devices Inc./Maxim Integrated | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tube |
| MAX213EWI+ | Analog Devices Inc./Maxim Integrated | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tube |
| MAX214EWI+ | Analog Devices Inc./Maxim Integrated | 3/5 | 116 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tube |
| MAX241EEWI+ | Analog Devices Inc./Maxim Integrated | 4/5 | 120 kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | Tube |
Engineering Selection Recommendations
Primary Recommendation: MAX211IDWR
The MAX211IDWR is the MFR-recommended substitute from Texas Instruments. It maintains full electrical and mechanical compatibility with the TRS211IDW across all critical parameters: 4/5 driver/receiver configuration, 120 kbps data rate, -40°C to 85°C operating range, and 28-SOIC packaging. The part carries Active product status with ROHS3 compliance and MSL 1 rating. Packaging is supplied in Tape & Reel format, suitable for automated assembly processes.
Secondary Recommendation: MAX211EEWI+T
The MAX211EEWI+T from Analog Devices Inc./Maxim Integrated provides direct functional equivalence with Active product status. All electrical specifications align with the TRS211IDW. This part is available in Tape & Reel packaging and carries ROHS3 compliance with MSL 1 rating, supporting high-volume production environments.
Alternative Consideration: SP211ECT-L/TR
The SP211ECT-L/TR from MaxLinear, Inc. offers enhanced data rate capability (230 kbps vs. 120 kbps) while maintaining 4/5 driver/receiver configuration and 28-SOIC packaging. Operating temperature range is 0°C to 70°C, which is narrower than the TRS211IDW. This part is suitable for applications not requiring the full -40°C to 85°C range. RoHS compliance is confirmed with MSL 3 rating.
Parametric Equivalents: MAX211EEWI+, MAX211EWI+, MAX213EEWI+, MAX213EWI+, MAX241EEWI+
These parts meet all core electrical parameters and maintain 28-SOIC packaging. All carry Active product status with ROHS3 compliance and MSL 1 rating. Packaging is supplied in Tube format. These parts are suitable for applications where tube packaging is acceptable.
Limited Substitution: MAX214EWI+
The MAX214EWI+ differs in driver/receiver configuration (3/5 vs. 4/5) and data rate (116 kbps vs. 120 kbps). This part is suitable only for applications that do not require the full 4/5 driver/receiver complement and can operate at the lower data rate.
Not Recommended: MAX211IDW (Last Time Buy Status)
While electrically equivalent, the MAX211IDW carries Last Time Buy status, indicating limited future availability. This part should not be selected for new designs requiring long-term supply assurance.
Frequently Asked Questions (FAQ)
Q: Can I use MAX211EEWI+ as a direct replacement for TRS211IDW?
A: Yes. The MAX211EEWI+ meets all electrical specifications: 4/5 driver/receiver configuration, 120 kbps data rate, -40°C to 85°C operating range, 4.5V to 5.5V supply voltage, and 28-SOIC packaging. The primary difference is packaging format (Tube vs. the original Tube format). Both carry ROHS3 compliance and MSL 1 rating.
Q: What is the difference between MAX211IDWR and MAX211EEWI+T?
A: Both parts are electrically equivalent and meet all TRS211IDW specifications. The primary difference is manufacturer: MAX211IDWR is from Texas Instruments, while MAX211EEWI+T is from Analog Devices Inc./Maxim Integrated. Both are supplied in Tape & Reel packaging suitable for automated assembly. Selection can be based on supply availability and preferred supplier relationships.
Q: Is SP211ECT-L/TR compatible with TRS211IDW?
A: The SP211ECT-L/TR is mechanically and electrically compatible in terms of 4/5 driver/receiver configuration, 28-SOIC packaging, and 4.5V to 5.5V supply voltage. However, it offers enhanced data rate (230 kbps vs. 120 kbps) and operates across a narrower temperature range (0°C to 70°C vs. -40°C to 85°C). Use this part only if your application does not require the full temperature range of the original part.
Q: Can I use MAX214EWI+ as a substitute?
A: The MAX214EWI+ is not recommended as a direct substitute. It features a 3/5 driver/receiver configuration instead of 4/5, and operates at 116 kbps instead of 120 kbps. Use this part only if your circuit design requires fewer drivers/receivers and can tolerate the lower data rate.
Q: What does "Last Time Buy" status mean for MAX211IDW?
A: Last Time Buy indicates that the manufacturer will no longer produce this part after a specified date. Existing inventory may be available, but future supply is not guaranteed. For new designs and long-term production, select parts with Active status such as MAX211IDWR, MAX211EEWI+T, or MAX211EEWI+.
Q: Are all substitute parts ROHS3 compliant?
A: All recommended substitute parts carry ROHS3 compliance. The SP211ECT-L/TR carries standard RoHS compliance. Verify compliance requirements for your specific application and region.
Q: What is the difference between Tube and Tape & Reel packaging?
A: Tube packaging is suitable for manual assembly and lower-volume production. Tape & Reel packaging is optimized for automated pick-and-place assembly in high-volume manufacturing. Both formats contain the same die and electrical specifications. Select based on your assembly process requirements.
Q: Do all substitute parts have the same MSL rating?
A: Most substitute parts carry MSL 1 (Unlimited), including MAX211IDWR, MAX211EEWI+T, MAX211EEWI+, MAX211EWI+, MAX213EEWI+, MAX213EWI+, and MAX241EEWI+. The SP211ECT-L/TR carries MSL 3 (168 Hours), requiring stricter moisture control during storage and handling. Verify MSL requirements for your manufacturing environment.
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