Overview
The ST232BW, produced by STMicroelectronics, is a 2 driver, 2 receiver device that adheres to the EIA/TIA-232 and V.28 communication standards. This component is particularly suited for applications where ±12V power is not available, as it operates on a single 5V power supply and requires only four external capacitors (0.1µF). The ST232BW is designed for low-power and battery-powered systems, making it ideal for use in portable computers, low-power modems, interface translation, battery-powered RS-232 systems, and multi-drop RS-232 networks.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 4.5 to 5.5 | V |
| Supply Current No Load (Typ) | 5 | mA |
| Transmitter Output Voltage Swing (Typ) | ±7.8 | V |
| Receiver Input Voltage Range | ±30 | V |
| Data Rate (Typ) | 220 | kbps |
| Operating Temperature Range | -40 to 85°C, 0 to 70°C | °C |
| Package | SO-16 Large (Tube), TSSOP-16L | |
| RoHS Compliance Grade | Ecopack3 |
Key Features
- Single 5V power supply operation
- Requires only four external capacitors (0.1µF)
- Controlled output slew rate
- Compatible with MAX232 and MAX202
- Operating temperature range: -40°C to 85°C, 0°C to 70°C
- Data rate up to 220 kbps
- Receiver input voltage range: ±30V
Applications
- Portable computers
- Low power modems
- Interface translation
- Battery-powered RS-232 systems
- Multi-drop RS-232 networks
Q & A
- What is the ST232BW used for?
The ST232BW is used in applications requiring RS-232 communication where ±12V power is not available, such as in portable computers, low-power modems, and battery-powered RS-232 systems.
- What is the operating voltage range of the ST232BW?
The ST232BW operates on a single 5V power supply with a voltage range of 4.5 to 5.5V.
- How many external capacitors are required for the ST232BW?
The ST232BW requires only four external capacitors, each with a value of 0.1µF.
- What is the typical data rate of the ST232BW?
The typical data rate of the ST232BW is 220 kbps.
- What is the operating temperature range of the ST232BW?
The operating temperature range of the ST232BW is -40°C to 85°C and 0°C to 70°C.
- Is the ST232BW compatible with other RS-232 devices?
Yes, the ST232BW is compatible with MAX232 and MAX202 devices.
- What is the receiver input voltage range of the ST232BW?
The receiver input voltage range of the ST232BW is ±30V.
- What are the typical applications of the ST232BW?
Typical applications include portable computers, low-power modems, interface translation, battery-powered RS-232 systems, and multi-drop RS-232 networks.
- What packages are available for the ST232BW?
The ST232BW is available in SO-16 Large (Tube) and TSSOP-16L packages.
- Is the ST232BW RoHS compliant?
Yes, the ST232BW is RoHS compliant with an Ecopack3 grade.
