Overview
The ST202BTR, produced by STMicroelectronics, is a 5V powered multi-channel RS-232 driver and receiver device. It complies with EIA/TIA-232 and V.28 communication standards, making it suitable for applications where ±12V is not available. This device operates on a single 5V power supply and requires only four external capacitors (0.1 µF). It is particularly useful in low-power and portable applications due to its efficient power management and compact design.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 4.5 | 5 | 5.5 | V |
| Supply Current (No Load) | 1.5 | 4 | mA | |
| Transmitter Output Voltage Swing | ±5 | ±9 | V | |
| Transition Slew Rate | 6 | 12 | 30 | V/µs |
| Receiver Propagation Delay | 0.1 | 0.5 | ms | |
| Receiver Input Voltage Range | -30 | 30 | V | |
| Data Rate | 200 | 400 | kbps | |
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- Compliance with EIA/TIA-232 and V.28 communication standards
- Single 5V power supply operation
- Low power consumption with a typical supply current of 1.5 mA (no load)
- High transmitter output voltage swing (±9 V typical)
- Fast transition slew rate (12 V/µs typical)
- Wide receiver input voltage range (±30 V)
- High data rate capability (up to 400 kbps)
- Operating temperature range from -40°C to 85°C
- Compatible with MAX202
Applications
The ST202BTR is suitable for various applications, including:
- Portable computers
- Low-power modems
- Interface translation
- Battery-powered RS-232 networks
Q & A
- What is the supply voltage range for the ST202BTR?
The supply voltage range is from 4.5V to 5.5V. - What is the typical supply current for the ST202BTR?
The typical supply current is 1.5 mA (no load). - What is the transmitter output voltage swing for the ST202BTR?
The transmitter output voltage swing is typically ±9 V. - What is the transition slew rate for the ST202BTR?
The transition slew rate is typically 12 V/µs. - What is the receiver propagation delay for the ST202BTR?
The receiver propagation delay is typically 0.1 ms. - What is the receiver input voltage range for the ST202BTR?
The receiver input voltage range is ±30 V. - What is the maximum data rate for the ST202BTR?
The maximum data rate is up to 400 kbps. - What is the operating temperature range for the ST202BTR?
The operating temperature range is from -40°C to 85°C. - Is the ST202BTR compatible with other devices?
Yes, it is compatible with MAX202. - What are some typical applications for the ST202BTR?
Typical applications include portable computers, low-power modems, interface translation, and battery-powered RS-232 networks.
