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TRS202CD RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The TRS202CD is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The TRS202CD operates within a 4.5V to 5.5V supply voltage range with a 120 kbps data rate and 500 mV receiver hysteresis, suitable for legacy RS232 communication interfaces.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Part Number | TRS202CD |
| Manufacturer | Texas Instruments |
| Type | Transceiver |
| Protocol | RS232 |
| Drivers/Receivers | 2/2 |
| Duplex | Full |
| Data Rate | 120 kbps |
| Supply Voltage | 4.5V – 5.5V |
| Operating Temperature | 0°C – 70°C |
| Package | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Receiver Hysteresis | 500 mV |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the TRS202CD is determined by strict equivalence across the following parameters:
Critical Matching Parameters:
- Protocol: RS232
- Drivers/Receivers: 2/2 configuration
- Duplex: Full
- Data Rate: 120 kbps
- Supply Voltage: 4.5V – 5.5V
- Receiver Hysteresis: 500 mV
- Package: 16-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
Substitute parts are grouped into three categories:
Direct Manufacturer Equivalents maintain identical electrical specifications and packaging format, differing only in packaging presentation (Cut Tape/Digi-Reel vs. Tube).
Parametric Equivalents meet all electrical and mechanical specifications but may originate from different manufacturers or base product lines while maintaining full functional compatibility.
Upgrade Parts exceed the original specifications in operating temperature range (-40°C to 85°C vs. 0°C to 70°C) while maintaining all other parameters, offering extended environmental performance with active product status.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Operating Temp | Supply Voltage | Data Rate | Package | Packaging Type |
|---|---|---|---|---|---|---|---|
| TRS202CD | Texas Instruments | Obsolete | 0°C – 70°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Tube |
| TRS202ECDR | Texas Instruments | Obsolete | 0°C – 70°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Cut Tape/Digi-Reel |
| MAX202CD | Texas Instruments | Obsolete | 0°C – 70°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Tube |
| MAX232DG4 | Texas Instruments | Obsolete | 0°C – 70°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Tube |
| TRS202ECD | Texas Instruments | Obsolete | 0°C – 70°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Tube |
| MAX202ECSE+T | Analog Devices Inc./Maxim Integrated | Active | 0°C – 70°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Cut Tape/Digi-Reel |
| MAX232ECSE+T | Analog Devices Inc./Maxim Integrated | Active | 0°C – 70°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Cut Tape/Digi-Reel |
| MAX202EESE+ | Analog Devices Inc./Maxim Integrated | Active | -40°C – 85°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Tube |
| MAX202EESE+T | Analog Devices Inc./Maxim Integrated | Active | -40°C – 85°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Cut Tape/Digi-Reel |
| MAX232EESE+ | Analog Devices Inc./Maxim Integrated | Active | -40°C – 85°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Tube |
| MAX232EESE+T | Analog Devices Inc./Maxim Integrated | Active | -40°C – 85°C | 4.5V – 5.5V | 120 kbps | 16-SOIC | Cut Tape/Digi-Reel |
Engineering Selection Recommendations
For Direct Replacement (Obsolete Status Maintained): TRS202ECDR, MAX202CD, MAX232DG4, and TRS202ECD provide functional equivalence to TRS202CD with identical electrical specifications and operating temperature range. These parts maintain obsolete product status and are suitable for legacy system repairs where component availability is the primary concern.
For Active Production (Current Availability): MAX202ECSE+T and MAX232ECSE+T are active products from Analog Devices Inc./Maxim Integrated with identical electrical specifications and operating temperature range as the original TRS202CD. These parts offer superior supply chain availability and are recommended for new designs or systems requiring long-term component sourcing.
For Extended Environmental Performance: MAX202EESE+, MAX202EESE+T, MAX232EESE+, and MAX232EESE+T provide extended operating temperature range (-40°C to 85°C) while maintaining all other electrical parameters. These upgrade parts are suitable for applications requiring operation beyond the original 0°C to 70°C specification and are available as active products.
All substitute parts maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and identical 16-SOIC package specifications. Selection between Tube and Cut Tape/Digi-Reel packaging depends on procurement and assembly requirements.
Frequently Asked Questions (FAQ)
Q: Can MAX202ECSE+T directly replace TRS202CD in existing designs? A: Yes. MAX202ECSE+T meets all electrical specifications (2/2 RS232 transceiver, 120 kbps, 4.5V–5.5V supply, 0°C–70°C operating range) and uses identical 16-SOIC packaging. The primary difference is active product status and manufacturer (Analog Devices Inc./Maxim Integrated vs. Texas Instruments).
Q: What is the difference between Tube and Cut Tape/Digi-Reel packaging? A: Tube packaging presents components in plastic tubes for manual handling and small-quantity assembly. Cut Tape/Digi-Reel packaging provides components on continuous tape for automated pick-and-place assembly. Electrical specifications and component functionality remain identical; packaging selection depends on assembly process requirements.
Q: Are the upgrade parts (MAX202EESE+ series) backward compatible? A: Yes. Upgrade parts maintain all electrical specifications of the original TRS202CD while extending the operating temperature range to -40°C to 85°C. They are fully backward compatible and can be used as direct replacements in any application designed for the original part.
Q: Why are some substitute parts listed as obsolete? A: Obsolete parts (TRS202ECDR, MAX202CD, MAX232DG4, TRS202ECD) are functionally equivalent to TRS202CD but no longer in active production. These parts are suitable for legacy system support where existing inventory is available. For new designs, active products (MAX202ECSE+T, MAX232ECSE+T, MAX202EESE+ series, MAX232EESE+ series) are recommended.
Q: Do all substitute parts have the same RoHS and MSL ratings? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with modern manufacturing and environmental standards.
Q: What determines whether a part is a direct equivalent versus a parametric equivalent? A: Direct equivalents share identical base product numbers and specifications with only packaging format differences. Parametric equivalents meet all electrical and mechanical specifications but may have different base product numbers or manufacturers while maintaining full functional compatibility.
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