| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Type | Transceiver |
| Data Rate | 500kbps |
| Receiver Hysteresis | 300 mV |
| Supplier Device Package | 20-TSSOP |
| Voltage - Supply | 3V ~ 5.5V |
| Protocol | RS232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TRSF3222 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TRSF3222EIPWR RS-232 line driver/receiver 20-TSSOP
The TRSF3222EIPWR from Texas Instruments is a 3V to 5.5V, dual-channel, 1 Mbps RS-232 line driver/receiver designed for robust serial communication in space-constrained applications. It integrates two drivers and two receivers along with a dual charge-pump circuit, enabling operation from a single supply with only four small 0.1µF external capacitors. Housed in a compact 20-pin TSSOP (PW) package, it operates over the industrial temperature range of -40°C to +85°C and provides pin-to-pin ±15kV ESD protection for the serial bus pins, ensuring high reliability in harsh environments.
This transceiver delivers exceptional system-level protection and performance. It features robust ESD protection compliant with ±15kV Human Body Model (HBM), ±8kV IEC 61000-4-2 Contact Discharge, and ±15kV IEC 61000-4-2 Air-Gap Discharge standards. It supports data signaling rates up to 1 Mbps and meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards. Its ultra-low standby current of 1µA (typical) in power-down mode maximizes energy efficiency for battery-powered devices. The ic also includes independent receiver enable (EN) and driver power-down (PWRDOWN) controls, offering flexible power management and allowing the receivers to remain active while drivers are disabled.
The TRSF3222EIPWR is engineered for reliable serial data transmission in industrial, computing, and portable applications. Its primary uses include industrial PCs, wired networking equipment, data center hardware, and point-of-sale (POS) systems. It is also ideal for laptops, handheld devices, building automation systems, and any embedded system requiring a robust, low-power RS-232 interface to connect microcontrollers, UARTs, or legacy peripherals.
Alternative RS-232 transceivers
● ST3222BTR (STMicroelectronics): A 3V to 5.5V dual RS-232 transceiver with similar ±15kV ESD protection and 1Mbps data rate, offering a reliable second-source option.
● MAX3222EUP+T (Analog Devices/Maxim Integrated): A 3V to 5.5V, 1Mbps RS-232 transceiver with enhanced ESD protection and auto-shutdown features for ultra-low power consumption.
● ICL3222EIVZ (Renesas/Toshiba): A 3V to 5.5V dual RS-232 line driver/receiver compatible with industry standards, providing another viable alternative from a major manufacturer.
● SN65C3222EDWR (Texas Instruments): A similar 3V to 5.5V dual RS-232 transceiver from TI's portfolio, often listed as a functional equivalent with comparable specifications.