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SC8521

Silan Microelectronics
Part Number SC8521
Manufacturer Silan Microelectronics
Description INFRARED REMOTE CONTROL TRANSMITTER
Published Nov 11, 2005
Detailed Description SC8521 INFRARED REMOTE CONTROL TRANSMITTER OF 8521 CODE FORMAT DESCRIPTION The SC8521 can be used in infrared remote ...
Datasheet PDF File SC8521 PDF File

SC8521
SC8521

Overview
SC8521 INFRARED REMOTE CONTROL TRANSMITTER OF 8521 CODE FORMAT DESCRIPTION The SC8521 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.
However, it does contain a ROM in which the codes that have to be transmitted are stored.
The oscillator frequency may be optionally chosen as 432KHz.
For 432KHz additional external capacitors must be connected.
When a key in the key-matrix is pressed a driveline will be connected to a sense line.
This causes the oscillator to start and a corresponding code will be generated conforming to the RC5 protocol.
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