Overview
The ST202CDR is a 5V powered multi-channel RS-232 driver and receiver device produced by STMicroelectronics. This component is designed to operate within the EIA/TIA-232 and V.28 communication standards, making it suitable for applications where ±12V is not available. It uses a single 5V power supply and requires only four external capacitors (0.1 µF) for operation. The ST202CDR is particularly useful in low-power and portable applications due to its efficient power consumption 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
- Single 5V power supply operation.
- Two drivers and two receivers.
- Compatible with MAX202.
- Low power consumption with a typical supply current of 1.5 mA (no load).
- High data rate capability up to 400 kbps.
- Wide operating temperature range from -40°C to 85°C.
- Requires only four external 0.1 µF capacitors.
- Available in SO16, SO16L, and TSSOP16 packages.
Applications
The ST202CDR 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 ST202CDR?
The supply voltage range is from 4.5V to 5.5V. - How many external capacitors are required for the ST202CDR?
Four external capacitors (0.1 µF each) are required. - What is the typical data rate of the ST202CDR?
The typical data rate is 400 kbps. - What are the operating temperature ranges for the ST202CDR?
The operating temperature ranges are from -40°C to 85°C and from 0°C to 70°C. - Is the ST202CDR compatible with other RS-232 devices?
Yes, it is compatible with MAX202. - What are the typical applications of the ST202CDR?
Typical applications include portable computers, low-power modems, interface translation, and battery-powered RS-232 networks. - What packages are available for the ST202CDR?
The ST202CDR is available in SO16, SO16L, and TSSOP16 packages. - What is the receiver input voltage range for the ST202CDR?
The receiver input voltage range is ±30V. - What is the transition slew rate of the ST202CDR?
The transition slew rate is typically 12 V/µs. - How much current does the ST202CDR typically consume when there is no load?
The ST202CDR typically consumes 1.5 mA when there is no load.
