MAX6818EAP+

MAX6818EAP+ is an octal CMOS switch debouncer that provides clean interfacing of mechanical switches to digital systems. It accepts one or more bouncing inputs from a mechanical switch and produces 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. It features single-supply operation from +2.7V to +5.5V. Undervoltage-lockout circuitry ensures the output is in the correct state upon power-up. The MAX6818 octal switch debouncer is designed for data-bus interfacing. Suitable for µP switch interfacing, industrial instruments, PC-based instruments, portable instruments and membrane keypads.

• Monitors, provide switch change-of-state O/P (active low CH), simplifying MUP polling and interrupts
• Switch debouncer integration simplifies system interface to mechanical switches
• 6μA supply current
• No external components required
• Built-in protection circuitry improves system reliability
• Three-state outputs for directly interfacing to μP
• Switch change-of-state output simplifies polling and interrupts
• Pin-compatible with ‘LS573
• 20 pin TSSOP package
• Temperature range from -40°C to +125°C

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