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PDF ELM410 Data sheet ( Hoja de datos )
| Número de pieza | ELM410 | |
| Descripción | Triple Debounce Circuit | |
| Fabricantes | ELM | |
| Logotipo |  |
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ELM410
Triple Debounce Circuit
Description
The ELM410 provides all of the necessary
circuitry to connect as many as three independent
mechanical contacts to an electronic circuit.
All mechanical contacts, whether from switches,
relays, etc. will have inherent ‘bounce’ when they
make or break a connection. Depending on the type
of switch, this fluctuation can be quite pronounced,
often being interpreted as multiple inputs by high
speed digital circuits.
This circuit provides all of the logic required to
remove the bounce from most mechanical sources,
without the use of additional components. As well,
internal pull-up resistors have been provided so that
the switch inputs can be directly connected to the 8
pin package.
The ELM410 provides three separate inverters
which follow the input directly. No latching or
‘memory action’ is provided, as it is in the case of
the ELM411.
Applications
• Pushbutton interface for logic circuits
• Limit switch monitoring
• Time delay generation
Features
• Low power CMOS design - typically 1mA at 5V
• Wide supply range - 3.0 to 5.5 volt operation
• Simultaneous monitoring of three circuits
• Full 25msec debounce period on contact closure
and opening, without external components
• Internal pullup resistors for contact monitoring
• High current drive outputs - up to 25 mA
• Can be cascaded to provide sequential outputs
Connection Diagram
PDIP and SOIC
(top view)
VDD 1
Out1 2
Out2 3
In3 4
8 VSS
7 In1
6 In2
5 Out3
Block Diagram
Out1 2
Out2 3
In3 4
Debounce
Timers
Debounce
Timers
VDD
VDD
VDD
Debounce
Timers
7 In1
6 In2
5 Out3
ELM410DSB
Elm Electronics – Circuits for the Hobbyist
< http://www.elmelectronics.com/ >
1 of 4
Free Datasheet http://www.datasheet4u.com/
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet ELM410.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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