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MAX6817

Maxim
Part Number MAX6817
Manufacturer Maxim
Description CMOS Switch Debouncers
Published May 2, 2005
Detailed Description Click here for production status of specific part numbers. MAX6816/MAX6817/ MAX6818 ±15kV ESD-Protected, Single/Dual/Oc...
Datasheet PDF File MAX6817 PDF File

MAX6817
MAX6817

Overview
Click here for production status of specific part numbers.
MAX6816/MAX6817/ MAX6818 ±15kV ESD-Protected, Single/Dual/Octal, CMOS Switch Debouncers General Description The MAX6816/MAX6817/MAX6818 are single, dual, and octal switch debouncers that provide clean interfacing of mechanical switches to digital systems.
They accept one or more bouncing inputs from a mechanical switch and produce a clean digital output after a short, preset qualification delay.
Both the switch opening bounce and the switch closing bounce are removed.
Robust switch inputs handle ±25V levels and are ±15kV ESD-protected for use in harsh industrial environments.
They feature single-supply operation from +2.
7V to +5.
5V.
Undervoltage-lockout circuitry ensures the output is in the correct state upon power-up.
The single MAX6816 and dual MAX6817 are offered in SOT packages and require no external components.
Their low supply current makes them ideal for use in portable equipment.
The MAX6818 octal switch debouncer is designed for data-bus interfacing.
The MAX6818 monitors switches and provides a switch change-of-state output (CH), simplifying microprocessor (µP) polling and interrupts.
Additionally, the MAX6818 has three-state outputs controlled by an enable (EN) pin, and is pin-compatible with the LS573 octal latch (except for the CH pin), allowing easy interfacing to a digital data bus.
Applications ●● µP Switch Interfacing ●● Industrial Instruments ●● PC-Based Instruments ●● Portable Instruments ●● Membrane Keypads Typical Operating Circuit VCC MECHANICAL SWITCH MAX6816 IN OUT GND 0.
1µF µP RESET DEBOUNCED OUTPUT Benefits and Features ●● Switch Debouncer Integration Simplifies System Interface to Mechanical Switches • Single-Supply Operation from +2.
7V to +5.
5V • No External Components Required • Single (MAX6816), Dual (MAX6817), and Octal (MAX6818) Versions Available • 6μA Supply Current ●● Built-In Protection Circuitry Improves System Reliability • Inputs Can Exceed Power Supplies...


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