Overview
The TRSF3232EIPW, produced by Texas Instruments, is a 3V to 5.5V two-channel RS-232 line driver and receiver. This device is designed to provide the electrical interface between an asynchronous communication controller and the serial-port connector. It features a dual charge-pump circuit and offers robust ESD protection, making it suitable for a variety of applications requiring reliable serial communication.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 3.3 / 5 | 5.5 | V |
| Supply Current (ICC) | 0.3 | 1 | 1 | mA |
| High-Level Output Voltage (VOH) | 5 | 5.4 | V | |
| Low-Level Output Voltage (VOL) | -5 | -5.4 | V | |
| Driver Input Voltage (VI) | 0 | 5.5 | V | |
| Receiver Input Voltage | -25 | 25 | V | |
| Operating Free-Air Temperature | -40 | 85 | °C | |
| Data Signaling Rate | 1000 | kbit/s |
Key Features
- Operates with 3V to 5.5V VCC supply.
- Operates up to 1 Mbit/s data signaling rate.
- Low supply current: 300 μA typical.
- External capacitors: 4 × 0.1 μF required.
- Accepts 5-V logic input with 3.3-V supply.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- ESD protection for RS-232 pins: ±15-kV Human-Body Model (HBM), ±15-kV IEC 61000-4-2 air-gap discharge, and ±8-kV IEC 61000-4-2 contact discharge.
- Available in near chip scale QFN (3mmx3mm) package, which is 85% smaller than SOIC-16.
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- PDAs
- Notebooks and laptops
- Palmtop PCs
- Hand-held equipment
Q & A
- What is the operating voltage range of the TRSF3232EIPW? The device operates with a 3V to 5.5V VCC supply.
- What is the maximum data signaling rate of the TRSF3232EIPW? The device operates up to 1 Mbit/s.
- What is the typical supply current of the TRSF3232EIPW? The typical supply current is 300 μA.
- What external capacitors are required for the TRSF3232EIPW? Four 0.1 μF capacitors are required.
- Does the TRSF3232EIPW support 5-V logic input with a 3.3-V supply? Yes, it does.
- What level of ESD protection does the TRSF3232EIPW offer? The device offers ±15-kV Human-Body Model (HBM), ±15-kV IEC 61000-4-2 air-gap discharge, and ±8-kV IEC 61000-4-2 contact discharge ESD protection.
- In what packages is the TRSF3232EIPW available? It is available in SOIC, SSOP, TSSOP, and near chip scale QFN (3mmx3mm) packages.
- What is the operating temperature range of the TRSF3232EIPW? The operating free-air temperature range is -40°C to 85°C.
- What are some common applications of the TRSF3232EIPW? Common applications include industrial PCs, wired networking, data center and enterprise computing, battery-powered systems, PDAs, notebooks, and hand-held equipment.
- How does the TRSF3232EIPW provide electrical interface? The device provides the electrical interface between an asynchronous communication controller and the serial-port connector.
