RS232 to TTL Serial Interface Module

Looking for Rs232 Module 7706? RS232 to TTL Serial Interface Module is available at Zbotic with fast shipping across India.

RS232 to TTL Serial Interface Module

Introducing the RS232 to TTL Serial Interface Module, a versatile solution that uses the MAX3232 transceiver IC to enable seamless communication between TTL and RS232 ports. This module converts electrical signals between the two standards, making it an essential tool for a wide range of projects.

The module features a DB9 connector on one end, and four header pins with jumper cables on the other, providing flexibility for various connection setups. The jumper cables allow for easy integration with breadboards or microcontroller boards, while the DB9 connector connects directly to a computer’s COM port.

At the heart of the module is the MAX3232CSE+ IC, which comes in a 16-pin narrow SO package and operates within a voltage range of 3.0V to 5.5V. It includes two receivers and two transmitters, supporting a maximum data rate of 120 kbps for efficient serial communication. The module also requires four 0.1µF charge-pump capacitors and is fully compatible with the MAX3232 IC pinout. Ideal for systems using UART, it integrates easily with microcontrollers like ATMEL, PIC, and others.

Features:

• Facilitates serial communication between TTL and RS232 ports
• Compact and pre-assembled board for convenience
• Wide range of applications including radio modification, DVD flash, GPS, and more
• Suitable for programming various microcontroller modules such as STC, NXP, Renesas, STM32, and more
• Supports data rates up to 250 kbit/s
• Operating voltage: 3.3-5.5V
• DB9 connector and jumper cables for easy connection
• Compact size for seamless integration into projects

Specifications:

Upgrade your projects with the RS232 to TTL Serial Interface Module, your reliable solution for efficient serial communication and data transfer.

Package Includes

• 1 x RS232 to TTL Serial Interface Module

Datasheet

RS232 to TTL Serial Interface Module Overview

The RS232 to TTL Serial Interface Module uses the MAX3232 transceiver IC to convert between RS232 voltage levels and 3.3–5.5 V TTL logic. It provides a DB9 connector for PC COM ports and four header pins for easy connection to microcontrollers and development boards.

Key Features of RS232 to TTL Serial Interface Module

• MAX3232 IC for reliable RS232↔TTL level conversion
• Wide operating voltage range: 3.3 V to 5.5 V
• Standard DB9 male connector for direct PC COM port connection
• Four-pin header with jumper cables for TX, RX, VCC and GND
• Supports data rates up to 250 kbit/s
• Pre-assembled compact PCB; ready for plug-and-play use
• Fast shipping from Zbotic across India

Applications and Use Cases

• Programming and debugging STC microcontrollers via RS232
• Flashing firmware on NXP MCUs using a legacy serial port
• Connecting Renesas UART-based modules to a PC COM port
• Interfacing STM32 development boards for serial console access
• Integrating N-76E-series (N+-2EC) microcontrollers with desktop software
• Data logging and monitoring of industrial sensors over RS232

How to Use RS232 to TTL Serial Interface Module

Connect the DB9 male end to your PC’s COM port or RS232 device. Wire the four-pin header to your microcontroller’s TX, RX, VCC (3.3–5.5 V) and GND pins using the provided jumper cables. Power the module from the same supply as your MCU, then start your serial terminal or IDE at the matching baud rate (up to 250 kbit/s) to send and receive TTL-level data.

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Frequently Asked Questions

What voltage levels does this module support?

The module operates from 3.3 V up to 5.5 V. It converts RS232 ±12 V signals to TTL logic levels (0–VCC) suitable for standard microcontroller UART pins.

Can I use this module to program my STM32 MCU?

Yes. Connect the module’s TX and RX pins to the STM32 UART pins, match the ground, and link the DB9 to your PC’s COM port. Use your STM32 IDE or serial terminal at the correct baud rate to upload firmware or access the console.

Do I need any drivers to use this module on my computer?

No additional drivers are required on the PC end since the module is purely a level shifter. The COM port on your computer handles RS232 signaling directly.