Description
The 7Semi RS232 to TTL Converter Module based on the SP3232EB IC enables bidirectional voltage level conversion between RS232 and TTL logic levels. It is ideal for interfacing microcontrollers or logic-level devices with legacy RS232 serial devices like modems, PCs, and industrial equipment. It includes charge pump circuitry for RS232 voltage generation and offers strong ESD protection, ensuring reliable communication in a compact form factor.
Technical Specification:
- IC: SP3232EB
- Voltage Supply: 3.0 V to 5.5 V
- Communication Standard: RS232 to TTL
- RS232 Output Levels: ±5 V (internally generated)
- Data Rate: Up to 250 kbps
- Channels: 2 transmitters and 2 receivers
- Logic Level Compatibility: TTL/CMOS
- Protection: ±15 kV ESD protection (Human Body Model), ±8 kV contact
- Current Consumption: Low power, typical
- Board Type: Breakout module with header pins
- Mounting: Through-hole or breadboard compatible
Features:
- Bidirectional RS232-to-TTL signal level conversion
- Supports full-duplex serial communication
- Operates from a single low-voltage supply
- Built-in charge pump for RS232 voltage generation
- Robust ESD protection for reliable data exchange
- Compatible with 3.3V and 5V microcontrollers
- Compact breakout design ideal for embedded projects
- Supports legacy RS232 interfacing in modern digital systems
Applications:
- Interfacing Arduino, ESP32, STM32, or other MCUs with RS232 devices
- Serial communication with legacy PCs, modems, or instrumentation
- Industrial automation and control systems using RS232 protocols
- Embedded systems requiring reliable UART-to-RS232 translation
- Data loggers, serial consoles, and communication test tools