- 4- bit
Max 232 IC
The MAX232 IC is used to convert the TTL/CMOS logic levels to RS232 logic levels during serial communication of microcontrollers with PC. The controller operates at TTL logic level (0-5V) whereas the serial communication in PC works on RS232 standards (-25 V to 25V). This makes it difficult to establish a direct link between them to communicate with each other.
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