ELM401 Datasheet Rotary Encoder Debounce Circuit

Manufacturer: ELM

Overview: ELM401 Rotary Encoder Debounce Circuit.

Datasheet Details

Part number	ELM401
Manufacturer	ELM
File Size	68.18 KB
Description	Rotary Encoder Debounce Circuit
Datasheet	ELM401_ELM.pdf

The ELM401 is an 8 pin integrated circuit that is used to ‘debounce’ the signals from a mechanical rotary (quadrature) encoder.

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 ELM401, as this is all performed within the integrated circuit.

Low power CMOS design Wide supply range.
2.0 to 5.5 volts Complete debouncing of the encoder signals No external filtering needed Includes switch debouncing circuit Startup delay timer High current drive outputs Connection Diagram PDIP and SOIC (top view) VDD A 1 2 3 4 8 7 6 5 VSS A out B out Sw out.