This RS232 to TTL Serial Interface Module is a board with the MAX3232 transceiver integrated circuit (IC). It facilitates serial communication between TTL and RS232 ports by providing the necessary electrical signal conversion. These boards usually have a DB9 connector soldered at one end, and four header pins with jumper cables at the other end. The jumper cables enable the user to connect the wires to a breadboard or a microcontroller project board, whilst the DB9 connects directly to a COM port of a computer. The MAX3232CSE+IC, which comes in a 16 pin narrow SO package. It requires between 3.0 V to 5.5 V to operate and has two receivers and two transmitters. It has a maximum guaranteed data rate of 120 kbps, and the circuitry requires four 0.1µF charge-pump support capacitors. It is also compatible with the famous MAX3232 IC pins. These boards connect to systems with a UART hence, they work with ATMEL and PIC & microcontrollers.

Technical Specification:

• IC Chip: MAX3232
• Operating Voltage: 3.3-5.5V
• Operating current: 6mA
• Power supply: external
• Interface: TXD, RXD, GND, VCC
• Size: 45mm*32mm*15mm (L*W*H)

Features:

• Easy to use and low cost
• No need of any soldering just plug and play
• Compatible with most of the microcontrollers which operate on either 3.3V and 5V
• Robust and can be used in Industrial applications too
• Pre-assembled compact size board
• Suitable for use with most microcontrollers
• Operates up to 250 kbit/s

Applications:

• Radio modification
• Phone flash
• GPS, vehicle detection
  
• DVD flash
• Hard disk repair set-top box upgrade