Datasheet for the Microchip PIC18F452, an enhanced flash 8-bit microcontroller, in a 5.44 MB PDF. It was widely used in industrial controllers, hobby boards and older equipment, offered in 40 and 44 pin packages. The document lists pinouts, the memory organisation, configuration bits, peripheral modules and DC and AC specifications. Use it to verify supply and oscillator signals and locate ICSP pins for in-circuit programming, and confirm which package is fitted before probing.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @datasheet. Enginerys does not host this file.
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