Description

The ELM408 is an 8 pin integrated circuit that is used to convert the output from a rotary encoder into two signals (chip select, 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.

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 and 4x decoding

• Can generate a write sequence

• Startup delay timer

• High current drive outputs

Applications

• Digital audio potentiometer controls

• Variable voltage or temperature circuits

• Positioning controls

• Tuning circuits