8-BIT, UVPROM, 8051 CPU
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The Intel D8751H is an 8-bit microcontroller incorporating an 8051-compatible CPU core. Fabricated using NMOS technology, it features 4KB of on-chip, user-programmable and erasable read-only memory (UVPROM), allowing for in-system code updates via exposure to ultraviolet light. The device operates with a typical clock frequency of 12 MHz, executing instructions based on the standard 8051 instruction set. Internal architecture includes 128 bytes of RAM, four 8-bit I/O ports, a full-duplex serial port, and two 16-bit timer/counters. The D8751H requires a single 5V power supply for operation and is typically packaged in a 40-pin DIP package, characterized by a quartz window for UVPROM erasure. It is designed for embedded control applications requiring moderate processing power and reprogrammability.