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TRS211IDWR RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The TRS211IDWR is a full-duplex RS232 transceiver manufactured by Texas Instruments, configured with 4 drivers and 5 receivers in a 28-SOIC surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The part operates across the industrial temperature range of -40°C to 85°C with a 120 Kbps data rate and 4.5V to 5.5V supply voltage.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TRS211IDWR |
| Manufacturer | Texas Instruments |
| Category | Interface |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 4/5 |
| Duplex | Full |
| Data Rate | 120 Kbps |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Receiver Hysteresis | 500 mV |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the TRS211IDWR is determined by strict adherence to the following electrical and mechanical parameters:
Critical Parameters for Substitution:
- Protocol: RS232
- Number of Drivers/Receivers: 4/5 configuration
- Duplex: Full
- Package / Case: 28-SOIC (0.295", 7.50mm Width)
- Voltage - Supply: 4.5V ~ 5.5V
- Receiver Hysteresis: 500 mV
- Data Rate: 120 Kbps minimum
- Operating Temperature: -40°C ~ 85°C (or compatible range)
- Mounting Type: Surface Mount
- RoHS Status: ROHS3 Compliant
Substitute parts are grouped into two categories:
Category 1: Parametric Equivalents – Parts matching all critical electrical parameters and package specifications with active product status.
Category 2: MFR Recommended – Parts recommended by manufacturers as direct replacements, with minor variations noted in operating temperature or data rate specifications.
Parameter Comparison
| Part Number | Manufacturer | Drivers/Receivers | Data Rate | Operating Temp | Supply Voltage | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| TRS211IDWR | Texas Instruments | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Obsolete | ROHS3 |
| MAX211IDWR | Texas Instruments | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
| MAX211EEWI+ | Analog Devices Inc./Maxim Integrated | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
| SP211ECT-L/TR | MaxLinear, Inc. | 4/5 | 230 Kbps | 0°C ~ 70°C | 4.5V ~ 5.5V | 28-SOIC | Active | RoHS |
| MAX211EEWI+T | Analog Devices Inc./Maxim Integrated | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
| MAX211EWI+T | Analog Devices Inc./Maxim Integrated | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
| MAX213EEWI+T | Analog Devices Inc./Maxim Integrated | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
| MAX213EWI+T | Analog Devices Inc./Maxim Integrated | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
| MAX214EWI+T | Analog Devices Inc./Maxim Integrated | 3/5 | 116 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
| MAX241EEWI+T | Analog Devices Inc./Maxim Integrated | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
| MAX241EWI+T | Analog Devices Inc./Maxim Integrated | 4/5 | 120 Kbps | -40°C ~ 85°C | 4.5V ~ 5.5V | 28-SOIC | Active | ROHS3 |
Engineering Selection Recommendations
Primary Recommendation: MAX211IDWR
The MAX211IDWR is the direct parametric equivalent to the TRS211IDWR. It maintains identical electrical specifications, operating temperature range, and package configuration while offering active product status. This part is manufactured by Texas Instruments and carries ROHS3 compliance, ensuring regulatory alignment with the original design.
Secondary Recommendations: MAX211EEWI+, MAX211EEWI+T, MAX211EWI+T
These Analog Devices Inc./Maxim Integrated parts provide full parametric equivalence with active product status and ROHS3 compliance. Packaging variations (Tube vs. Tape & Reel) accommodate different procurement and assembly workflows.
Alternative Consideration: MAX213EEWI+T, MAX213EWI+T
The MAX213 series maintains all critical electrical parameters and operating specifications. These parts are suitable for applications where the MAX211 series is unavailable.
Limited Substitution: MAX214EWI+T
The MAX214EWI+T differs in driver/receiver configuration (3/5 instead of 4/5) and data rate (116 Kbps vs. 120 Kbps). This part is suitable only for applications where the reduced driver count and lower data rate are acceptable.
Conditional Substitution: SP211ECT-L/TR
The SP211ECT-L/TR from MaxLinear offers higher data rate capability (230 Kbps) but operates within a narrower temperature range (0°C ~ 70°C). This part is suitable only for applications operating within this temperature window and where the extended data rate capability is beneficial or neutral.
Packaging Consideration: MAX241EEWI+T, MAX241EWI+T
The MAX241 series provides full parametric equivalence and is available in Tape & Reel packaging. These parts are suitable for high-volume production environments.
Frequently Asked Questions (FAQ)
Q: Can MAX214EWI+T replace TRS211IDWR in all applications?
A: No. The MAX214EWI+T has a 3/5 driver/receiver configuration compared to the TRS211IDWR's 4/5 configuration. Substitution is valid only if the application requires no more than 3 drivers and 5 receivers.
Q: What is the difference between MAX211EEWI+ and MAX211EEWI+T?
A: The primary difference is packaging. MAX211EEWI+ is supplied in Tube packaging, while MAX211EEWI+T is supplied in Tape & Reel (TR) packaging. Both maintain identical electrical specifications and operating parameters.
Q: Is SP211ECT-L/TR a direct replacement for TRS211IDWR?
A: SP211ECT-L/TR is not a direct replacement due to operating temperature range limitations (0°C ~ 70°C vs. -40°C ~ 85°C). It is suitable only for applications operating within the narrower temperature window.
Q: Are all substitute parts ROHS3 compliant?
A: Most substitute parts are ROHS3 compliant. SP211ECT-L/TR carries RoHS compliance without the "3" designation. Verify compliance requirements for your specific application.
Q: What is the significance of the 500 mV receiver hysteresis specification?
A: Receiver hysteresis of 500 mV is a standard specification for RS232 transceivers and is maintained across all substitute parts listed. This parameter ensures noise immunity and signal integrity in RS232 communication links.
Q: Can I use MAX213 series parts as substitutes?
A: Yes. The MAX213EEWI+T and MAX213EWI+T maintain all critical electrical parameters, operating temperature range, and package specifications of the TRS211IDWR while offering active product status.
Q: What packaging options are available for substitute parts?
A: Substitute parts are available in Tube, Tape & Reel (TR), and unspecified packaging configurations. Select packaging based on procurement volume and assembly process requirements.
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