MC8751H-8/R

Specialized ICS Overview

The MC8751H-8/R is an 8-bit microcontroller manufactured by Rochester Electronics, LLC. It features an Intel 80C51-compatible CPU architecture with a maximum operating speed of 8 MHz. The device includes 4 KB of UV-erasable programmable read-only memory (UVPROM) and 128 bytes of RAM. It operates at a nominal supply voltage of 5 V and is housed in a 44-pin plastic quad flat package (PQCC). The component supports surface-mount technology and has a specified maximum operating temperature of 70 °C.

Specialized ICS Feature Summary

• Intel 80C51-compatible 8-bit CPU core
• 4 KB UVPROM and 128 Bytes RAM
• 8 MHz maximum clock frequency
• 44-pin PQCC surface-mount package

Specialized ICS Part Context

Rochester Electronics specializes in sustaining existing semiconductor technologies that are otherwise obsolete. This product is part of their portfolio of licensed and tested devices, ensuring continued production for legacy components like the Intel 80C51 family. The company maintains inventory and wafer banks to support long-term availability for industrial and embedded applications requiring these specific historical architectures.

Specialized ICS Replacement Considerations

This component serves as a replacement for the original Intel MC8751H-8. Users should verify pin compatibility and electrical specifications against the original datasheet. As a sustainment product from Rochester Electronics, it provides functional equivalence for legacy systems where original manufacturer production has ceased.