TRS202ID Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TRS202ID is a full-duplex RS-232 line transceiver with 2 drivers and 2 receivers compliant to EIA/TIA-232-F, featuring Schmitt-trigger inputs and integrated charge-pump capacitors in a 16-pin SOIC package. It converts 3.3V or 5V logic to RS-232 voltage levels for reliable serial communication in embedded systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- TRS202ID Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0000(MOQ 192)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual RS-232 driver and receiver (2/2 full-duplex) compliant with EIA-232-F / TIA-232-F standards, enabling direct microcontroller UART to RS-232 interface without discrete level-shifting components
- Schmitt-trigger receiver inputs with ±200 mA maximum input current tolerance for robust noise rejection on long RS-232 cable runs in industrial serial communication applications
- Integrated charge-pump voltage doubler requiring only external 100 nF capacitors to generate RS-232 ±5V to ±15V levels from a single 3.3V or 5V supply in a compact 16-pin SOIC package
Applications
The TRS202ID is used in embedded systems requiring RS-232 serial port interfaces for industrial instruments, barcode scanners, POS terminals, and PLCs communicating with legacy RS-232 hosts. Its dual-channel 2-driver/2-receiver architecture supports simultaneous full-duplex communication on two independent RS-232 lines from a single IC, reducing BOM count in multi-port serial designs. Panel-mount HMI modules and data-acquisition systems also rely on this device for EIA-232-F compliant long-distance serial links up to 15 meters.
Specifications
| YTEOL | 0 |
| Differential Output | NO |
| Driver Number of Bits | 2 |
| High Level Input Current-Max | 0.0002A |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-232-F; TIA-232-F; V.28 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 2 |
| Out Swing-Min | 10V |
| Output Low Current-Max | 0.0016A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receive Delay-Max | 10000ns |
| Receiver Number of Bits | 2 |
| Supply Current-Max | 15mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 4.5V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Transmit Delay-Max | 10000ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many independent RS-232 channels does the TRS202ID support in full-duplex mode, and what logic supply voltage does it accept?
The TRS202ID supports 2 independent full-duplex RS-232 channels, each with one driver and one receiver, allowing simultaneous bidirectional communication on 2 separate RS-232 ports. It operates from a 3V to 5.5V single logic supply, using an internal charge pump to generate the ±5V to ±15V output swing required by EIA/TIA-232-F without a separate bipolar power supply.
Why does the TRS202ID use Schmitt-trigger receiver inputs, and how does this benefit noisy industrial serial cable environments?
The TRS202ID receiver inputs use Schmitt-trigger hysteresis with a typical input threshold band of approximately 0.5V, which prevents multiple edge transitions from slow-rising or noise-corrupted RS-232 signals on long cables exceeding 3 meters. In industrial environments with motor-drive EMI or ground potential differences of several volts, the Schmitt-trigger input rejects noise spikes below the hysteresis band, maintaining clean TTL-level output transitions for accurate UART byte decoding.
What external components does the TRS202ID require to generate RS-232 voltage levels from a 5V supply?
The TRS202ID requires four 100 nF (0.1 µF) ceramic capacitors connected to its charge-pump capacitor pins (C1+, C1-, C2+, C2-) to generate the internal ±10V charge-pump voltage needed for RS-232 driver output levels of ±5V minimum. No additional power supply or discrete boost converter is needed, making the total external capacitor count just 4 parts for a complete 2-channel RS-232 interface on a 3.3V or 5V embedded system board.
When should a designer select TRS202ID over a MAX232 or equivalent single-channel RS-232 transceiver?
TRS202ID is the correct selection when the design requires 2 independent RS-232 channels in a single package, avoiding the need for two separate MAX232 devices and saving approximately 30% board area in a 16-pin SOIC versus two 16-pin packages. Its TIA-232-F compliance ensures interoperability with legacy RS-232 equipment at data rates up to 120 kbps, while the Schmitt-trigger inputs provide superior noise immunity compared to standard MAX232 receivers in industrial cable environments.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 192+ | $1.5600 | $299.52 |
| 500+ | $1.1300 | $565.00 |
| 1000+ | $1.0600 | $1060.00 |
| 10000+ | $1.0000 | $10000.00 |
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