Overview
The ST232BDR, produced by STMicroelectronics, is a dual driver and dual 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. It requires only four external capacitors (0.1μF) for operation, making it efficient for various low-power and portable applications.
Key Specifications
| Parameter | Description |
|---|---|
| Operating Temperature Range | -40°C to 85°C (Industrial), 0°C to 70°C |
| Data Rate (typ) | 220 Kbps |
| Supply Voltage Range | 4.5 to 5.5 V |
| Transmitter Output Voltage Swing (typ) | ±7.8 V |
| Supply Current No Load (typ) | 5 mA |
| Receiver Input Voltage Range | ±30 V |
| Compatibility | Compatible with MAX232 and MAX202 |
| Package | SO-16, TSSOP-16L |
| RoHS Compliance | Ecopack3 |
Key Features
- Single 5V power supply operation.
- Requires only four external capacitors (0.1μF).
- Controlled output slew rate.
- Compatible with MAX232 and MAX202.
- Low power consumption with a typical supply current of 5 mA under no-load conditions.
- Wide operating temperature range: -40°C to 85°C (Industrial), 0°C to 70°C.
Applications
- Portable computers.
- Low power modems.
- Interface translation.
- Battery-powered RS-232 systems.
- Multi-drop RS-232 networks.
Q & A
- What is the operating voltage range of the ST232BDR?
The ST232BDR operates within a supply voltage range of 4.5 to 5.5 V.
- What are the typical data rates supported by the ST232BDR?
The ST232BDR supports data rates up to 220 Kbps.
- How many external capacitors are required for the ST232BDR?
The ST232BDR requires only four external capacitors (0.1μF).
- What is the typical transmitter output voltage swing of the ST232BDR?
The typical transmitter output voltage swing is ±7.8 V.
- Is the ST232BDR compatible with other RS-232 transceivers?
Yes, the ST232BDR is compatible with MAX232 and MAX202.
- What are the common applications of the ST232BDR?
Common applications include portable computers, low power modems, interface translation, battery-powered RS-232 systems, and multi-drop RS-232 networks.
- What is the operating temperature range of the ST232BDR?
The operating temperature range is -40°C to 85°C (Industrial) and 0°C to 70°C.
- What is the typical supply current of the ST232BDR under no-load conditions?
The typical supply current under no-load conditions is 5 mA.
- What is the receiver input voltage range of the ST232BDR?
The receiver input voltage range is ±30 V.
- Is the ST232BDR RoHS compliant?
Yes, the ST232BDR is RoHS compliant with an Ecopack3 rating.
