Microchip datasheet for the rfPIC12C509AG and rfPIC12C509AF, microcontrollers with an integrated RF transmitter, in a 1.33 MB PDF. The two suffixes refer to different modulation variants of the same device, so confirm which one is fitted before ordering a part. The document describes pinout, transmitter section, crystal requirements and electrical limits. It suits repair of remote controls, key fobs and similar small wireless transmitters where you need to check the RF supply, antenna pins and oscillator circuit.
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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