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PCA8521 - Infrared remote control transmitter RC5

Description

The PCA8521 can be used in infrared remote control transmitters.

It generates output pulses, in accordance with the RC5 protocol, when a key is pressed.

The IC does not contain a software programmable processor.

Features

  • RC5 protocol.
  • Maximum of:.
  • 56 keys (20-pin version).
  • 30 keys (16-pin version).
  • Option of multi-system or single system transmitter.
  • Multi-system: maximum 8 systems, selection by key.
  • Single system: maximum 8 different systems per IC, selection by jumper wire or switch.
  • Power-down and key wake-up.
  • High output current (≤ 45 mA).
  • Oscillator frequency of 432 kHz or 4 MHz.
  • Multiple key protection.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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INTEGRATED CIRCUITS DATA SHEET PCA8521 Infrared remote control transmitter RC5 Product specification Supersedes data of 1997 Jul 03 File under Integrated Circuits, IC02 1999 Jun 15 Philips Semiconductors Product specification Infrared remote control transmitter RC5 FEATURES • RC5 protocol • Maximum of: – 56 keys (20-pin version) – 30 keys (16-pin version). • Option of multi-system or single system transmitter – Multi-system: maximum 8 systems, selection by key – Single system: maximum 8 different systems per IC, selection by jumper wire or switch. • Power-down and key wake-up • High output current (≤ 45 mA) • Oscillator frequency of 432 kHz or 4 MHz • Multiple key protection • Option of 25% or 33% duty factor • Contained in DIP16, SO16, DIP20 or SO20 packages.
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