MAX6818

Features:

© Robust Inputs can Exceed Power Supplies up to ±25V
© ESD Protection for Input Pins
    ±15kV-Human Body Model
    ±8kV-IEC 1000-4-2, Contact Discharge
    ±15kV-IEC 1000-4-2, Air-Gap Discharge
© Small SOT Packages (4 and 6 pins)
© Single-Supply Operation from +2.7V to +5.5V
© Single (MAX6816), Dual (MAX6817), and Octal
    (MAX6818) Versions Available
© No External Components Required
© 6µA Supply Current
© Three-State Outputs for Directly Interfacing
    Switches to µP Data Bus (MAX6818)
© Switch Change-of-State Output Simplifies
    Polling and Interrupts (MAX6818)
© Pin-Compatible with 'LS573 (MAX6818)


Application

µP Switch Interfacing
Industrial Instruments
PC-Based Instruments
Portable Instruments
Automotive Applications
Membrane Keypads


Pinout




Specifications

Voltage (with respect to GND)
    V_CC.......................................................................-0.3V to +6V
   IN_ (Switch Inputs) .............................................-30V to +30V
   EN .........................................................................-0.3V to +6V
OUT_, CH ...................................................-0.3V to (VCC + 0.3V)
OUT Short-Circuit Duration
(One or Two Outputs to GND)....................................Continuous
Continuous Power Dissipation (TA = +70°C)
4-Pin SOT143 (derate 4.0mW/°C above +70°C)...........320mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C).............691mW
20-Pin SSOP (derate 8.0mW/°C above +70°C) ............640mW
Operating Temperature Range ........................-40°C to +85°C
Storage Temperature Range .........................-65°C to +160°C
Lead Temperature (soldering, 10sec) ...........................+300°C


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 of MAX6818 handle ±25V levels and are ±15kV ESD- protected for use in harsh industrial environments. MAX6818 feature single-supply operation from +2.7V to +5.5V. Undervoltage lockout circuitry ensures the output is in the correct state upon power-up.