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TRS207IDWR RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The TRS207IDWR is a full-duplex RS232 transceiver manufactured by Texas Instruments, featuring 5 drivers and 3 receivers in a 24-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring RS232 interface functionality.
The TRS207IDWR operates within a 4.5V to 5.5V supply range with a 120 kbps data rate and supports industrial temperature ranges from -40°C to 85°C. Its obsolete status necessitates identification of active alternative components that maintain electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | TRS207IDWR |
|---|---|
| Manufacturer | Texas Instruments |
| Product Status | Obsolete |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 5/3 |
| 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 | 24-SOIC (0.295", 7.50mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the TRS207IDWR is determined by the following critical parameters:
- Protocol & Configuration: RS232 full-duplex transceiver with 5 drivers and 3 receivers
- Package Compatibility: 24-SOIC (0.295", 7.50mm Width) surface mount package
- Electrical Specifications: Supply voltage range, data rate capability, receiver hysteresis, and operating temperature range
- Compliance & Status: RoHS3 compliance, MSL rating, and active product status
Substitute parts are grouped into two categories based on electrical parameter alignment:
Category A - Full Parameter Alignment (Recommended Primary Substitutes) Parts with matching receiver hysteresis (500 mV), data rate (120 kbps), and extended temperature range (-40°C to 85°C): MAX207EEWG+, MAX207EEWG+T
Category B - Extended Performance Variants (Compatible Substitutes) Parts with enhanced data rate capability (230 kbps) and matching temperature range: ADM207EARZ, ADM207EARZ-REEL
Category C - Industrial Grade Variants (Temperature-Limited Substitutes) Parts with restricted operating temperature (0°C to 70°C) and narrower supply voltage range (4.75V to 5.25V): MAX207CWG+, MAX207CWG+T, MAX207ECWG+, MAX207ECWG+T
All substitute parts maintain 24-SOIC package compatibility, RoHS3 compliance, and MSL 1 rating.
Parameter Comparison
| Part Number | Manufacturer | Status | Drivers/Receivers | Data Rate | Receiver Hysteresis | Supply Voltage | Operating Temperature | Package | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|
| TRS207IDWR | Texas Instruments | Obsolete | 5/3 | 120 kbps | 500 mV | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Tube |
| 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 |
| 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 |
| 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 |
| 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 |
| MAX207EEWG+ | Analog Devices Inc./Maxim Integrated | Active | 5/3 | 120 kbps | 500 mV | 4.75V ~ 5.25V | -40°C ~ 85°C | 24-SOIC | Tube |
| MAX207EEWG+T | Analog Devices Inc./Maxim Integrated | Active | 5/3 | 120 kbps | 500 mV | 4.75V ~ 5.25V | -40°C ~ 85°C | 24-SOIC | Tape & Reel |
Engineering Selection Recommendations
Primary Substitutes for Direct Replacement
MAX207EEWG+ and MAX207EEWG+T are the closest functional equivalents to the TRS207IDWR. Both parts maintain identical receiver hysteresis (500 mV), data rate (120 kbps), and operating temperature range (-40°C to 85°C). These Analog Devices/Maxim Integrated components are active products with full RoHS3 compliance and MSL 1 rating. The primary difference is packaging format: MAX207EEWG+ is supplied in tube packaging, while MAX207EEWG+T is supplied in tape and reel format for automated assembly.
Extended Performance Alternatives
ADM207EARZ and ADM207EARZ-REEL offer enhanced data rate capability (230 kbps) while maintaining the full industrial temperature range (-40°C to 85°C) and supply voltage compatibility (4.5V to 5.5V). These Analog Devices components are active products with equivalent compliance certifications. The higher receiver hysteresis (650 mV) provides increased noise immunity in industrial environments. Selection between tube (ADM207EARZ) and tape & reel (ADM207EARZ-REEL) packaging depends on assembly methodology.
Industrial Temperature-Restricted Alternatives
MAX207CWG+, MAX207CWG+T, MAX207ECWG+, and MAX207ECWG+T are suitable only for applications with operating temperature limits of 0°C to 70°C. These parts feature matching receiver hysteresis (500 mV) and data rate (120 kbps) but operate within a narrower supply voltage range (4.75V to 5.25V). Selection among these variants depends on packaging requirements (tube versus tape & reel) and specific temperature operating conditions.
Compatibility Considerations
All substitute parts maintain mechanical compatibility through identical 24-SOIC package specifications. Electrical compatibility is confirmed through matching protocol (RS232), configuration (5/3 full-duplex transceiver), and compliance certifications (RoHS3, MSL 1). Supply voltage range differences must be evaluated against system design specifications. Temperature range restrictions in MAX207 variants require verification against application requirements.
Frequently Asked Questions (FAQ)
Q: Can MAX207EEWG+ directly replace TRS207IDWR without circuit modifications?
A: Yes. MAX207EEWG+ maintains identical electrical specifications for receiver hysteresis (500 mV), data rate (120 kbps), and operating temperature range (-40°C to 85°C). The 24-SOIC package pinout is compatible. No circuit modifications are required for functional substitution.
Q: What is the difference between MAX207EEWG+ and MAX207EEWG+T?
A: Both parts are electrically identical. MAX207EEWG+ is supplied in tube packaging for manual assembly or small-volume applications. MAX207EEWG+T is supplied in tape and reel format for automated pick-and-place assembly. Selection depends on manufacturing process requirements.
Q: Why do ADM207EARZ variants have higher receiver hysteresis (650 mV) than the original TRS207IDWR (500 mV)?
A: Receiver hysteresis is a design parameter that affects noise immunity. The 650 mV hysteresis in ADM207EARZ provides increased noise rejection in industrial environments. This is a design enhancement rather than a limitation. Applications requiring the original 500 mV specification should select MAX207EEWG+ or MAX207EEWG+T.
Q: Are MAX207CWG+ variants suitable for industrial temperature applications?
A: MAX207CWG+ and related variants operate only within 0°C to 70°C temperature range. They are not suitable for applications requiring the full -40°C to 85°C industrial temperature range of the TRS207IDWR. For industrial temperature requirements, select MAX207EEWG+, MAX207EEWG+T, ADM207EARZ, or ADM207EARZ-REEL.
Q: What is the significance of the supply voltage range difference between TRS207IDWR (4.5V ~ 5.5V) and MAX207 variants (4.75V ~ 5.25V)?
A: The TRS207IDWR accepts a wider supply voltage range. MAX207 variants have a narrower specification window. If your system operates at the extremes of the 4.5V or 5.5V range, verify that MAX207 variants meet your power supply specifications. ADM207 variants maintain the original 4.5V ~ 5.5V range.
Q: Can I use ADM207ARZ instead of ADM207EARZ?
A: Both are Analog Devices products with identical electrical specifications except for data rate. ADM207ARZ operates at 120 kbps (matching TRS207IDWR), while ADM207EARZ operates at 230 kbps. Selection depends on whether your application requires the enhanced data rate capability. Both maintain full industrial temperature range (-40°C to 85°C) and 4.5V to 5.5V supply compatibility.
Q: What does the "-REEL" suffix indicate in part numbers?
A: The "-REEL" suffix indicates tape and reel packaging format, suitable for automated assembly equipment. Parts without this suffix are supplied in tube packaging for manual assembly. Electrical specifications are identical between tube and tape & reel variants of the same base part number.
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