Datasheet4U Logo Datasheet4U.com

ELM408 - Rotary Decoder

General 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.

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 and 4x decoding Can generate a write sequence Startup delay timer High current drive outputs Connection Diagram PDIP and SOIC (top view) VDD 1 2 3 4 8 7 6 5 VSS CS U/D 4x/2x.

📥 Download Datasheet

Datasheet Details

Part number ELM408
Manufacturer ELM
File Size 80.57 KB
Description Rotary Decoder
Datasheet download datasheet ELM408 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
ELM452 TRANSISTOR PHOTOCOUPLER Everlight
ELM453 TRANSISTOR PHOTOCOUPLER Everlight
ELM-1081SURWA Dot Matrix Display Everlight
ELM-2001EWA Dot Matrix Display Everlight Electronics
ELM-2001GWA Dot Matrix Display Everlight Electronics

Other Datasheets by ELM

Part Number Description
ELM401 Rotary Encoder Debounce Circuit
ELM402 Rotary Decoder
ELM403 Rotary Decoder
ELM404 Rotary Decoder
ELM405 Rotary Decoder

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ELM408 Rotary Decoder - 2 wire Interface 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. There is no need for external filtering or debounce circuits with the ELM408, as this is all performed within the integrated circuit. After debouncing the encoder signals, the ELM408 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.