The Intel 80C51 Microcontroller is a classic 8-bit MCU based on the MCS-51 architecture, featuring 4KB ROM, 128 bytes of RAM, and 32 I/O lines. Widely used in control systems, signal processing, and embedded applications.
The MAX232 IC is a dual EIA-232 driver and receiver line bus IC in a DIP-16 package. It converts TTL/CMOS logic levels to RS-232 voltage levels, enabling reliable communication between microcontrollers, PCs, and serial devices.