Overview
The ST202ECDR is a ±15 kV ESD-protected 5V RS-232 transceiver designed by STMicroelectronics. This device is part of the ST202E series, which includes two-driver, two-receiver configurations tailored for RS-232 and V.28 communications in harsh environments. Each transmitter output and receiver input is protected against ±15 kV electrostatic discharge (ESD) shocks, ensuring robust operation in challenging conditions. The ST202ECDR operates from a single 5 V power supply and meets all EIA/TIA-232E and CCITT V.28 specifications at data rates up to 230 kbps.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | -0.3 to 6 | V |
| Extra Positive Voltage (V+) | (VCC - 0.3) to 14 | V |
| Extra Negative Voltage (V-) | -14 to 0.3 | V |
| Transmitter Input Voltage Range (TIN) | -0.3 to (V+ + 0.3) | V |
| Receiver Input Voltage Range (RIN) | ± 30 | V |
| Transmitter Output Voltage Range (TOUT) | (V- - 0.3) to (V+ + 0.3) | V |
| Receiver Output Voltage Range (ROUT) | -0.3 to (VCC + 0.3) | V |
| ESD Protection Voltage | ± 15 kV (Human Body Model) | kV |
| Data Rate | Up to 230 kbps | kbps |
| Slew Rate Range | 3 to 30 V/μs | V/μs |
| Operating Temperature Range | 0 to 70 °C | °C |
| Package Type | SO-16 (tape & reel) |
Key Features
- ±15 kV ESD protection for RS-232 I/O pins using the human body model.
- Guaranteed data rate of up to 230 kbps.
- Guaranteed slew rate range of 3 to 30 V/μs.
- Operates from a single 5 V power supply.
- Meets all EIA/TIA-232E and CCITT V.28 specifications.
- Uses four 0.1 µF capacitors, reducing cost and board space.
Applications
The ST202ECDR is designed for use in various applications requiring robust RS-232 and V.28 communication capabilities, particularly in harsh environments. These include:
- Industrial automation systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Any application requiring reliable serial communication in challenging conditions
Q & A
- What is the primary function of the ST202ECDR?
The ST202ECDR is a 5V RS-232 transceiver designed for RS-232 and V.28 communications in harsh environments.
- What level of ESD protection does the ST202ECDR offer?
The ST202ECDR offers ±15 kV ESD protection for RS-232 I/O pins using the human body model.
- What is the maximum data rate supported by the ST202ECDR?
The ST202ECDR supports data rates up to 230 kbps.
- What is the operating voltage of the ST202ECDR?
The ST202ECDR operates from a single 5 V power supply.
- What type of capacitors does the ST202ECDR use?
The ST202ECDR uses four 0.1 µF capacitors.
- What are the typical operating temperature ranges for the ST202ECDR?
The ST202ECDR operates within a temperature range of 0 to 70 °C.
- What package types are available for the ST202ECDR?
The ST202ECDR is available in SO-16 (tape & reel) and TSSOP16 (tape & reel) packages.
- Does the ST202ECDR meet industry standards for RS-232 communication?
Yes, the ST202ECDR meets all EIA/TIA-232E and CCITT V.28 specifications.
- What is the slew rate range of the ST202ECDR?
The slew rate range of the ST202ECDR is 3 to 30 V/μs.
- What are some common applications for the ST202ECDR?
The ST202ECDR is commonly used in industrial automation, medical devices, aerospace and defense systems, and automotive systems.
