TRS3232ECD Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TRS3232ECD is a dual RS-232 line driver/receiver operating from a 3 V to 5.5 V single supply, with integrated charge-pump capacitors generating ±5 V RS-232 output levels. It provides ±15 kV ESD protection on all RS-232 I/O pins, 2 drivers and 2 receivers, and Schmitt-trigger inputs for noise immunity. Available in a 16-pin SOIC package with worldwide stock and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- TRS3232ECD Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ±15 kV ESD protection on all RS-232 I/O pins protects against harsh industrial and field environments
- Wide supply range of 3 V to 5.5 V with optional 5 V operation eliminates the need for a dedicated 5 V rail
- Integrated charge-pump capacitors generate ±5 V RS-232 output swings from a single low-voltage supply
- Schmitt-trigger receiver inputs provide superior noise immunity in long-cable or noisy RS-232 links
Applications
TRS3232ECD is widely used in industrial automation equipment, handheld terminals, and embedded controllers that require RS-232 serial communication from a 3.3 V supply. The ±15 kV ESD rating makes it robust enough for field-wiring connections in PLCs, barcode scanners, and ruggedized instrumentation. It also serves in USB-to-RS-232 bridge boards and microcontroller evaluation platforms where dual UART channels are needed.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES AT 5V SUPPLY |
| Differential Output | NO |
| Driver Number of Bits | 2 |
| High Level Input Current-Max | 0.000001A |
| 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 | INVERTED |
| 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 |
| Receiver Number of Bits | 2 |
| Supply Current-Max | 1mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Supply Voltage1-Max | 3.6V |
| Supply Voltage1-Min | 3V |
| Supply Voltage1-Nom | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does TRS3232ECD achieve RS-232 output swing from a 3.3 V supply?
TRS3232ECD integrates a charge-pump voltage doubler and inverter that generates internal ±5 V rails from a 3 V to 5.5 V supply. These internal rails drive the 2 RS-232 transmitter outputs to the ±5 V levels required by TIA-232-F and V.28 standards, all without an external DC-DC converter. Only small 100 nF charge-pump capacitors are needed externally.
What level of ESD protection does TRS3232ECD provide on RS-232 lines, and which standard covers this?
TRS3232ECD provides ±15 kV human-body-model ESD protection on all RS-232 driver output and receiver input pins. This exceeds the IEC 61000-4-2 contact discharge level of ±4 kV and suits direct connection to field wiring or long RS-232 cables up to several meters. The protection is built into the silicon, so no external TVS diodes are required on the 16-pin SOIC design.
Can TRS3232ECD replace a 5 V-only MAX232 in a 3.3 V microcontroller system without hardware changes?
TRS3232ECD is functionally pin-compatible with the industry-standard RS-232 transceiver in a 16-pin SOIC footprint and operates down to 3 V, making it a drop-in replacement for 5 V MAX232 designs running on a 3.3 V rail. The charge-pump capacitor values (typically 100 nF) may need adjustment versus the 1 µF caps used in original MAX232 designs, but the PCB layout remains the same.
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