ELM407 Datasheet PDF (Rotary Decoder)

ELM407 - Rotary Decoder

Description

The ELM407 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.

Features

Low power CMOS design Wide supply range.
2.0 to 5.5 volts Complete debouncing of the encoder inputs No external filtering needed 4x decoding Can generate a write sequence 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.

Datasheet Details

Part number	ELM407
Manufacturer	ELM
File Size	79.37 KB
Description	Rotary Decoder
Datasheet	ELM407 Datasheet
Additional preview pages of the ELM407 datasheet.

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Full PDF Text Transcription

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ELM407 Rotary Decoder - 3 wire 4x Interface Description The ELM407 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 ELM407, as this is all performed within the integrated circuit. After debouncing the encoder signals, the ELM407 determines the direction of shaft rotation, and then generates the appropriate outputs. A write sequence can also be generated if the Write Enable input is at a high level when the outputs are generated.

Published: Dec 20, 2013 |