RS232 to TTL Serial Port Converter

The RS232 to TTL Serial Port Converter is a board with the MAX3232 transceiver integrated circuit (IC), which 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 MAX3232 IC 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 pin-compatible with the famous MAX232 IC.

These boards connect to systems with a UART; hence, they work with ATMEL and PIC microcontrollers.

Specifications:

• Communication Chip: MAX3232
• Working Voltage: 3.3V – 5V
• Port: DB9 Female (RS-232)
• Interface: TXD, RXD, GND, VCC
• Power Supply: External
• Support: 8051, PIC, AVR, and other such microcontrollers (TTL)
• Dimensions: 33mm*32mm*14mm