Overview
The ST202EBW, produced by STMicroelectronics, is a two-driver, two-receiver device designed for RS-232 and V.28 communications in harsh environments. This component is part of the ST202E and ST232E family, which are known for their robustness and reliability. Each transmitter output and receiver input is protected against ±15 kV electrostatic discharge (ESD) shocks, ensuring high durability. The device operates from a single 5 V power supply, making it suitable for applications where ±12 V is not available.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 4.5 to 5.5 | V |
| Supply Current (No Load) | 1.5 | mA |
| Transmitter Output Voltage Swing | ±9 | V |
| Transition Slew Rate | 6 to 30 | V/µs |
| Receiver Propagation Delay | 0.1 | ms |
| Receiver Input Voltage Range | ±30 | V |
| Data Rate | Up to 230 kbps | kbits/s |
| Operating Temperature Range | -40 to 85 °C, 0 to 70 °C | °C |
| Package Types | SO-16, TSSOP-16L | |
| RoHS Compliance | Ecopack3 |
Key Features
- ESD protection for RS-232 I/O pins: ±15 kV human body model
- Guaranteed data rate up to 230 kbps
- Guaranteed slew rate range of 3 to 30 V/µs
- Operates from a single 5 V power supply
- Compatible with EIA/TIA-232E and CCITT V.28 specifications
- Requires only four external capacitors (0.1 µF or 1 µF)
Applications
The ST202EBW is particularly suitable for applications in harsh environments where reliable RS-232 and V.28 communication is necessary. This includes industrial automation, medical devices, automotive systems, and any other application requiring robust serial communication interfaces. The device's ability to operate over a wide temperature range and its ESD protection make it an ideal choice for demanding environments.
Q & A
- What is the primary function of the ST202EBW?
The ST202EBW is a two-driver, two-receiver device designed for RS-232 and V.28 communications.
- What level of ESD protection does the ST202EBW offer?
The ST202EBW offers ±15 kV ESD protection for RS-232 I/O pins.
- What is the operating voltage range of the ST202EBW?
The device operates from a single 5 V power supply, with a voltage range of 4.5 to 5.5 V.
- What is the maximum data rate supported by the ST202EBW?
The ST202EBW supports data rates up to 230 kbps.
- What are the typical operating temperatures for the ST202EBW?
The operating temperature range is -40 to 85 °C, and 0 to 70 °C.
- What types of packages are available for the ST202EBW?
The device is available in SO-16 and TSSOP-16L packages.
- Is the ST202EBW RoHS compliant?
Yes, the ST202EBW is RoHS compliant with an Ecopack3 rating.
- How many external capacitors are required for the ST202EBW?
The device requires four external capacitors (0.1 µF or 1 µF).
- What communication standards does the ST202EBW comply with?
The device complies with EIA/TIA-232E and CCITT V.28 specifications.
- What is the typical slew rate of the ST202EBW?
The transition slew rate is typically between 6 to 30 V/µs.
