ELM409 Datasheet PDF (Versatile Debounce Circuit)

ELM409 - Versatile Debounce Circuit

Description

The ELM409 is digital filter circuit that is used to interface mechanical contacts to electronic circuits.

All mechanical contacts, whether from switches, relays, etc.

will have inherent ‘bounce’ when they make or break a connection.

Features

Standard and extra long debounce times Schmitt input provides hysteresis Complementary circuit outputs Needs no external timing components Low power CMOS design - typically 1 mA at 5V Wide supply range - 3.0 to 5.5 volt operation High current drive outputs Connection Diagram PDIP and SOIC (top view) VDD 1 2 3 4 8 7 6 5 VSS Out Out In.

Datasheet Details

Part number	ELM409
Manufacturer	ELM
File Size	73.18 KB
Description	Versatile Debounce Circuit
Datasheet	ELM409 Datasheet
Additional preview pages of the ELM409 datasheet.

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Full PDF Text Transcription

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ELM409 Versatile Debounce Circuit Description The ELM409 is digital filter circuit that is used to interface mechanical contacts to electronic circuits. All mechanical contacts, whether from switches, relays, etc. will have inherent ‘bounce’ when they make or break a connection. When that contact is used for the electrical input to a digital circuit, the bounces can easily be incorrectly interpreted as multiple inputs. The ELM409 contains all of the logic that is typically required to remove the bounce from such signals, and provide a signal that has only one transition. In addition to providing the standard debounce function, the ELM409 may also be configured for other useful functions such as generating pulses or alternating output levels on signal transitions.

Published: Dec 20, 2013 |