Overview
The ST232CN, 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 suitable for applications where ±12V is not available, as it operates on a single 5V power supply. The ST232CN requires only four external capacitors (0.1 µF) for its operation, making it a compact and efficient solution. It is compatible with MAX232 and MAX202, enhancing its versatility in various communication systems.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 4.5 | 5 | 5.5 | V |
| Supply Current (No Load) | 5 | 10 | mA | |
| Transmitter Output Voltage Swing | ±5 | ±7.8 | V | |
| Receiver Input Voltage Range | -30 | 30 | V | |
| Data Rate | 120 | 220 | kbps | |
| Operating Temperature Range | 0 | 70 | °C | |
| Operating Temperature Range (Extended) | -40 | 85 | °C |
Key Features
- Operates on a single 5V power supply, eliminating the need for ±12V.
- Requires only four external capacitors (0.1 µF) for operation.
- Controlled output slew rate to reduce electromagnetic interference (EMI).
- Wide receiver input voltage range of ±30V.
- High data rate of up to 220 kbps.
- Compatible with MAX232 and MAX202.
- Available in various packages including DIP-16, SO-16, and TSSOP16.
Applications
- Portable computers.
- Low power modems.
- Interfaces translation.
- Battery-powered RS-232 systems.
- Multi-drop RS-232 networks.
Q & A
- What is the supply voltage range for the ST232CN?
The supply voltage range for the ST232CN is 4.5V to 5.5V.
- How many external capacitors are required for the ST232CN?
The ST232CN requires four external capacitors, each with a value of 0.1 µF.
- What is the typical data rate of the ST232CN?
The typical data rate of the ST232CN is 220 kbps.
- What is the operating temperature range for the ST232CN?
The operating temperature range for the ST232CN is 0°C to 70°C, with an extended range of -40°C to 85°C for certain packages.
- Is the ST232CN compatible with other RS-232 devices?
Yes, the ST232CN is compatible with MAX232 and MAX202.
- What types of packages are available for the ST232CN?
The ST232CN is available in DIP-16, SO-16, and TSSOP16 packages.
- What is the typical supply current for the ST232CN under no load conditions?
The typical supply current for the ST232CN under no load conditions is 5 mA.
- What is the receiver input voltage range for the ST232CN?
The receiver input voltage range for the ST232CN is ±30V.
- Does the ST232CN have any specific requirements for the external capacitors?
No, the external capacitors can be common or biased capacitors, and even 1µF capacitors can be used if necessary.
- What are some typical applications of the ST232CN?
Typical applications include portable computers, low power modems, interfaces translation, battery-powered RS-232 systems, and multi-drop RS-232 networks.
