MAX3232 RS232 to TTL Serial Converter Module DB9 3.3V 5V

Description �� MAX3232 RS232 to TTL Serial Converter Module DB9 3.3V–5V | AuscomTech The MAX3232 RS232 to TTL Serial Converter Module provides reliable, bidirectional serial communication between RS232 devices and TTL-level microcontrollers. Built around the industry-standard MAX3232 IC, this module supports both 3.3V and 5V logic, making it ideal for interfacing MCUs, PLCs, and embedded systems with legacy RS232 equipment via a secure DB9 connector. Its low power consumption and high data rate ensure stable operation in development, industrial, and field applications. ⭐ Key Features �� MAX3232 Level Conversion ICTrusted RS232 transceiver ensures stable and reliable voltage level shifting. ⚡ 3.3V & 5V Logic CompatibleWorks seamlessly with modern microcontrollers and mixed-voltage systems. �� High-Speed Serial CommunicationSupports data rates up to 250 kbit/s for efficient RS232 data transfer. �� DB9 RS232 ConnectorIndustry-standard DB9 interface provides a secure and robust connection to RS232 devices. �� Low Power OperationConsumes less than 1mA idle current and approximately 6mA during operation. ��️ Easy MCU IntegrationClearly labelled TXD, RXD, VCC, and GND pins simplify wiring and setup. �� Technical Specifications Conversion Type: RS232 ↔ TTLIC: MAX3232Logic Voltage: 3.3V / 5VRS232 Connector: DB9Max Data Rate: Up to 250 kbit/sIdle Current: < 1mAOperating Current: ~6mAInterfaces: TXD, RXD, VCC, GNDPower Source: External supply via VCC ⚠️ Important Notes • RS232 signal levels differ from TTL — this module is required for safe interfacing• Ensure correct TX/RX crossover when wiring to microcontrollers• Not suitable for USB serial communication (USB ≠ RS232) �� Compatible With • PLC systems• STM32 microcontrollers• ESP32 / ESP8266• Arduino (with 3.3V or 5V logic)• STC, NXP, Renesas, NEC MCUs• Embedded Linux boards with UART• Industrial RS232 devices ⚙️ Typical Applications • RS232 device interfacing• PLC and industrial automation communication• Embedded system debugging• Legacy equipment integration• Serial data logging• MCU-to-RS232 protocol testing �� Package Includes • 1 × MAX3232 RS232 to TTL Serial Converter Module with DB9 Connector