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TRS232IDW RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The TRS232IDW is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The TRS232IDW operates within a 4.5V to 5.5V supply voltage range with a maximum data rate of 120 kbps and supports operating temperatures from -40°C to 85°C.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TRS232IDW |
| Manufacturer | Texas Instruments |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Voltage - Supply | 4.5V ~ 5.5V |
| Data Rate | 120 kbps |
| Operating Temperature | -40°C ~ 85°C |
| Receiver Hysteresis | 500 mV |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the TRS232IDW is determined by the following critical parameters:
- Protocol: RS232
- Number of Drivers/Receivers: 2/2
- Duplex: Full
- Package / Case: 16-SOIC (0.295", 7.50mm Width)
- Mounting Type: Surface Mount
- Voltage - Supply: 4.5V ~ 5.5V (minimum requirement)
- Operating Temperature: -40°C ~ 85°C (minimum requirement)
Substitute parts are grouped into two categories:
Parametric Equivalents (Texas Instruments): MAX202IDW and TRS202EIDW maintain identical electrical specifications and package form factor as the TRS232IDW. These parts are direct functional replacements with the same supply voltage range, operating temperature range, and receiver hysteresis characteristics.
Manufacturer Recommended Substitutes (MaxLinear, Inc.): SP202ECT-L, SP202ECT-L/TR, SP202EET-L/TR, SP232ACT-L/TR, SP232ECT-L/TR, SP232EET-L/TR, SP3232ECT-L/TR, and SP3232EET-L are active production alternatives. These parts meet or exceed the core electrical requirements and package specifications. The SP3232 series offers extended supply voltage range (3V ~ 5.5V) and reduced receiver hysteresis (300 mV), providing enhanced performance margins in certain applications.
Parameter Comparison
| Part Number | Manufacturer | Protocol | Drivers/Receivers | Duplex | Package | Voltage Supply | Data Rate | Operating Temp | Receiver Hysteresis | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TRS232IDW | Texas Instruments | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 120 kbps | -40°C ~ 85°C | 500 mV | Obsolete | ROHS3 |
| MAX202IDW | Texas Instruments | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 120 kbps | -40°C ~ 85°C | 500 mV | Obsolete | ROHS3 |
| TRS202EIDW | Texas Instruments | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 120 kbps | -40°C ~ 85°C | 500 mV | Obsolete | ROHS3 |
| SP202ECT-L | MaxLinear, Inc. | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 240 kbps | 0°C ~ 70°C | 500 mV | Active | RoHS |
| SP202ECT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 240 kbps | 0°C ~ 70°C | 500 mV | Active | RoHS |
| SP202EET-L/TR | MaxLinear, Inc. | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 240 kbps | -40°C ~ 85°C | 500 mV | Active | RoHS |
| SP232ACT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 240 kbps | 0°C ~ 70°C | 500 mV | Active | RoHS |
| SP232ECT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 240 kbps | 0°C ~ 70°C | 500 mV | Active | ROHS3 |
| SP232EET-L/TR | MaxLinear, Inc. | RS232 | 2/2 | Full | 16-SOIC | 4.5V ~ 5.5V | 240 kbps | -40°C ~ 85°C | 500 mV | Active | RoHS |
| SP3232ECT-L/TR | MaxLinear, Inc. | RS232 | 2/2 | Full | 16-SOIC | 3V ~ 5.5V | 235 kbps | 0°C ~ 70°C | 300 mV | Active | ROHS3 |
| SP3232EET-L | MaxLinear, Inc. | RS232 | 2/2 | Full | 16-SOIC | 3V ~ 5.5V | 235 kbps | -40°C ~ 85°C | 300 mV | Active | ROHS3 |
Engineering Selection Recommendations
For Direct Replacement (Obsolete to Obsolete): MAX202IDW and TRS202EIDW are parametric equivalents to TRS232IDW. Both maintain identical electrical specifications and are classified as obsolete. Selection between these three parts should be based on inventory availability and procurement lead times.
For Active Production Substitutes: MaxLinear SP202 and SP232 series parts are recommended for new designs or long-term production requirements. SP202EET-L/TR and SP232EET-L/TR support the full -40°C to 85°C operating temperature range matching the TRS232IDW, while SP202ECT-L and SP232ACT-L/TR are limited to 0°C to 70°C operation.
For Enhanced Performance: SP3232EET-L and SP3232ECT-L/TR offer extended supply voltage range (3V ~ 5.5V) and improved receiver hysteresis (300 mV versus 500 mV). SP3232EET-L supports -40°C to 85°C operation, while SP3232ECT-L/TR is rated to 0°C to 70°C. These parts are suitable for applications requiring lower supply voltage operation or enhanced noise immunity.
Compliance Considerations: All substitute parts maintain RoHS compliance. SP232ECT-L/TR, SP3232ECT-L/TR, and SP3232EET-L carry ROHS3 certification matching the original TRS232IDW. Moisture sensitivity levels range from MSL 1 (TRS232IDW, MAX202IDW, TRS202EIDW) to MSL 3 (all MaxLinear substitutes), requiring appropriate handling protocols during assembly.
Frequently Asked Questions (FAQ)
Q: Can SP202ECT-L replace TRS232IDW in applications requiring -40°C to 85°C operation?
A: No. SP202ECT-L is rated only to 0°C to 70°C. Use SP202EET-L/TR instead, which supports the full -40°C to 85°C temperature range while maintaining all other electrical specifications.
Q: What is the difference between SP232ACT-L/TR and SP232EET-L/TR?
A: Both parts are identical in electrical specifications and package. The primary difference is operating temperature range: SP232ACT-L/TR operates 0°C to 70°C, while SP232EET-L/TR operates -40°C to 85°C. Select based on application temperature requirements.
Q: Are SP3232 series parts compatible with existing TRS232IDW designs?
A: SP3232 parts are electrically compatible and use the same 16-SOIC package. However, they differ in receiver hysteresis (300 mV versus 500 mV) and support extended supply voltage down to 3V. These differences are generally transparent to the application layer but should be evaluated for noise-sensitive designs.
Q: What packaging options are available for MaxLinear substitutes?
A: MaxLinear offers three packaging formats: Tube (SP202EET-L, SP3232EET-L), Tape & Reel (SP202ECT-L/TR, SP202EET-L/TR, SP232ACT-L/TR, SP232EET-L/TR, SP3232ECT-L/TR), and Cut Tape with Digi-Reel (SP232ECT-L/TR, SP3232ECT-L/TR). Select based on assembly process requirements and volume.
Q: Do all substitute parts meet RoHS requirements?
A: Yes. All listed substitute parts are RoHS compliant. Texas Instruments parts (MAX202IDW, TRS202EIDW) and MaxLinear parts (SP232ECT-L/TR, SP3232ECT-L/TR, SP3232EET-L) carry ROHS3 certification. Other MaxLinear parts carry standard RoHS certification.
Q: What is the moisture sensitivity level difference between TRS232IDW and MaxLinear substitutes?
A: TRS232IDW, MAX202IDW, and TRS202EIDW are MSL 1 (unlimited moisture sensitivity). All MaxLinear substitutes are MSL 3 (168 hours), requiring controlled storage and handling during assembly to prevent moisture absorption.
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