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ELM403

Part Number	ELM403
Manufacturer	ELM
Description	Rotary Decoder
Published	Dec 20, 2013
Detailed Description	ELM403 Rotary Decoder - 2 wire 4x Interface Description The ELM403 is an 8 pin integrated circuit that is used to conver...
Datasheet	ELM403 PDF File

Overview

ELM403 Rotary Decoder - 2 wire 4x Interface Description The ELM403 is an 8 pin integrated circuit that is used to convert the signals from a rotary encoder into a series of up and down output pulses.
The low power CMOS technology used ensures that only a very small current is required over the entire 2.
0 to 5.
5 volt operating range.
There is no need for external filtering or debounce circuits with the ELM403, as this is all performed within the integrated circuit.
After debouncing the encoder signals, the ELM403 then determines the direction of shaft rotation, and generates the appropriate pulses at the Up or Down output pins.
The duration of these pulses can be selected for either 0.
2 or 2.
0 msec.
The ELM403 provides 4x decoding of a rotary encoder signal.
If your application requires 2x decoding, please see the ELM402 (it is identical to the ELM403 in every respect, except that it provides 2x decoding).
Features • • • • • • • Low power CMOS design Wide supply range – 2.
0 to 5.
5 volt...

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