Datasheet for the PT2262, a remote-control encoder IC widely used in RF and infrared transmitters such as 315/433 MHz key fobs. The 355 KB PDF should cover pinout, address and data pin coding, oscillator resistor selection and timing of the encoded waveform. Repair technicians consult it when diagnosing remote controls, gate openers and alarm transmitters. It is normally paired with the matching PT2272 decoder. Check the oscillator resistor values against the receiver side when a link fails.
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