ELM404 Datasheet Rotary Decoder

Manufacturer: ELM

ELM404 rotary decoder by ELM - Datasheet Preview

Datasheet Details

Part number	ELM404
Manufacturer	ELM
File Size	74.45 KB
Description	Rotary Decoder
Download	ELM404 Download (PDF)

General Description

The ELM404 is an 8 pin integrated circuit that is used to convert the output from a rotary encoder into three signals (chip select, clock and up/down) that can be used to control various devices.

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 ELM404, as this is all performed within the integrated circuit.

Overview

ELM404 Rotary Decoder - 3 wire 2x Interface.

Key Features

Low power CMOS design Wide supply range.
2.0 to 5.5 volts Complete debouncing of the encoder inputs No external filtering needed 2x decoding 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 CS Clk U/D.

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