TRS3221ECPWR-LI Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TRS3221E is a single-channel RS-232 line driver/receiver operating from a 3 V to 5.5 V supply with ±15 kV IEC ESD protection. It integrates charge-pump capacitors internally and comes in a 16-pin TSSOP package, targeting industrial and commercial serial communication applications in the 0 °C to 70 °C temperature range.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- TRS3221ECPWR-LI Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TRS3221ECPWR-LI?
- Wide supply range: 3 V to 5.5 V, compatible with both 3.3 V and 5 V logic systems
- ±15 kV IEC ESD protection on RS-232 I/O pins
- Single-channel RS-232 driver/receiver with integrated charge-pump capacitors
- 16-pin TSSOP package for compact PCB layouts
- Supports data rates up to 250 kbps
What is TRS3221ECPWR-LI used for?
The TRS3221E is well-suited for embedded systems requiring RS-232 serial communication interfaces, such as industrial PLCs, barcode scanners, and point-of-sale terminals. Its robust ±15 kV ESD tolerance protects equipment in harsh factory floor or field environments where cable misconnections are common. The wide 3 V to 5.5 V supply range also makes it compatible with modern low-voltage microcontrollers needing legacy RS-232 port connectivity.
What are the specifications of TRS3221ECPWR-LI?
| YTEOL | 0 |
| Interface IC Type | LINE TRANSCEIVER |
| JESD-609 Code | e4 |
| Peak Reflow Temperature (Cel) | 260 |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 | 8542.39.00.60 |
Where can I find the TRS3221ECPWR-LI datasheet?
TRS3221ECPWR-LI Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TRS3221ECPWR-LI?
Compatible alternatives and drop-in replacements for TRS3221ECPWR-LI:
Frequently Asked Questions
What supply voltage range does the TRS3221ECPWR-LI support, and how does it interface with both 3.3 V and 5 V microcontrollers?
The TRS3221E operates from 3 V to 5.5 V, making it directly compatible with 3.3 V and 5 V logic families without level-shifting. The internal charge pump generates the ±5.5 V RS-232 voltage levels from the single supply, simplifying board design and reducing external component count.
How does the ±15 kV ESD protection on the TRS3221ECPWR-LI benefit designs used in industrial or field environments?
The ±15 kV IEC ESD rating on all RS-232 I/O pins means the device can survive electrostatic discharge events common during cable connections in factory or outdoor settings, eliminating the need for external TVS diodes on most RS-232 lines and reducing BOM cost while improving long-term reliability.
In which package does the TRS3221ECPWR-LI come, and what maximum data rate does it support for serial communication?
The device is housed in a 16-pin TSSOP package with a peak reflow temperature of 260 °C, and supports RS-232 data rates up to 250 kbps, which comfortably covers the standard 115200 baud used by most embedded UART peripherals for console and debug interfaces.
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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.
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