What is MAX232 pin?
By EG Projects. Max 232 is an ic(integrated circuit) which converts TTL(Transistor Transistor logic) logic level signal in to its equivalent RS-232c level signal and Rs-232c level to its equivalent TTL level signal.
What is the function of MAX232?
The MAX232 is an integrated circuit by Maxim Integrated Products that converts signals from a TIA-232 (RS-232) serial port to signals suitable for use in TTL-compatible digital logic circuits. The MAX232 is a dual transmitter / dual receiver that typically is used to convert the RX, TX, CTS, RTS signals.
What is MAX3232 IC?
MAX3232 IC is a converter IC, used to convert RD232 to TTL. This IC includes line drivers-2, line receivers-2 & a circuit for dual charge-pump including ESD protection from terminal to terminal with 15 kV.
How do I know if my MAX232 is working?
Testing steps:
- Ensure the tester is powered off.
- Insert MAX232 chip to the ZIF socket.
- Push SW1 to turn power on.
- Push test button and check the green LED.
- Test the serial data stream with COM port tester. When we press keys (Green), it will echo back to terminal in Yellow.
- Push SW1 to turn power off.
- Take the chip out.
What is MAX232 and RS232?
RS-232 is a serial communications standard from the Telecommunications Industry Association . MAX232 is an integrated circuit product from Texas Instruments that converts two full-duplex channels of logic-level signals (e.g. to and from a microcontroller) to RS232 communications voltage levels.
What is MAX232 and RS-232?
What is the difference between RS232 and MAX232?
Main difference between two is the voltage levels of the rs232 are higher. In order to reduce those voltage means to convert those voltage levels to TTL logic levels we use max232 integrated chip which is a dual driver/ receiver.
What are rs232 voltage levels?
Valid RS-232 signals are either in the range of +3 V to +15 V or the range −3 V to −15 V with respect to the common ground (Figure 1-1). To be more specific, the driver output is Logic 0 when the voltage is between +5 V and +15 V and is Logic 1 when the voltage is between -5 V to -15 V.