ELM460 datasheet, PDF - EEWORLD Datasheet

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ELM460: DescriptionIMPOSSIBLE OSCILLATOR; File Size19KB，4 Pages; ManufacturerETC

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ELM460 Overview

IMPOSSIBLE OSCILLATOR

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ELM460

Impossible Oscillator

Description

The ELM460 is a complete astable oscillator

circuit in an 8 pin package. The circuit (impossibly!)

requires no external components to operate, as all

timing is generated internally.

Immediately after power-up, the ELM460 begins

to oscillate continuously at a frequency determined

by the logic levels on the configuration inputs. At the

end of every period, the circuit again reads these

configuration settings, and automatically adapts to

any changes that are made.

Two outputs are provided, an active high output

and it’s logical inverse. The circuit output is always a

50msec pulse, independent of the time period

selected.

Features

• Requires no external components

• Low power CMOS design - typically 1mA at 5V

• Wide supply range - 3.0 to 5.5 volt operation

• Provides periods from 0.1 to 600 seconds

• High current drive outputs - up to 25 mA

Connection Diagram

PDIP and SOIC

(top view)

Applications

• Time Base Generator

• Power Gating Controller

• LED Flasher

• Programmable Timer

Out

Block Diagram

Base Period

Generator

Rate

Multiplier

50ms Pulse

Generator

Out

Period

1 sec

2 sec

5 sec

6 sec

Multiplier

0.1

100

ELM460DSB

Elm Electronics – Circuits for the Hobbyist

< http://www.elmelectronics.com/ >

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ELM460 Related Products

	ELM460	ELM460SM	ELM460P
Description	IMPOSSIBLE OSCILLATOR	IMPOSSIBLE OSCILLATOR	IMPOSSIBLE OSCILLATOR

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