QuickView

Technical Documents

Ordering Info

More Information

All

Data Sheet

FULL DATA SHEET (PDF, 712kB) Download   E-Mail

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-bar), simplifying microprocessor (µP) polling and interrupts. Additionally, the MAX6818 has three-state outputs controlled by an enable (EN-bar) pin, and is pin-compatible with the LS573 octal latch (except for the CH-bar pin), allowing easy interfacing to a digital data bus.

Key Features		Applications/Uses
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)		µP Switch Interfacing Automotive Electronics Industrial Instruments Membrane Keypads PC-Based Instruments Portable Instrumentation

Diagram

Typical Operating Circuit

Application Notes

Application Note 287: Switch Bounce and Other Dirty Little Secrets - MAX6816, MAX6817, MAX6818 Application Note 764: Interfacing Switches and Relays to the Real World in Real Time - MAX6816, MAX6818 Application Note 805: Low-Cost, 24V Industrial Controller Is ESD-Protected - MAX6818 Application Note 843: Industrial 0V to +10V Digital Potentiometer - MAX6817 Application Note 893: Switch-Debouncer IC Creates A Long-Period Timer - MAX6817 Application Note 1118: Manually Operated Digital Potentiometer Doesn't Need a Microprocessor - MAX6817 Application Note 1802: ESD-Protected EPOT System has Pushbutton Interface - MAX6817 Application Note 2378: Handy Circuit Gives Systems Flexible Fault Protection - MAX6816 Application Note 2765: Flexible Fault Protection - MAX6816 Application Note 3980: Power Supplies for Next-Generation Automotive Lighting - MAX6818 Application Note 4232: HFRD-34.0 4x4 DVI KVM Switch - MAX6817

Evaluation Kits

none

Design Guides

MICROPROCESSOR SUPERVISORY (PDF)

Reliability Reports

Show FIT data for: MAX6816 MAX6817 MAX6818 Reliability Report: MAX6816EUS.pdf MAX6817EUT.pdf Request Reliability Report for: MAX6818

Software/Models

MAX6816 IBIS Model MAX6817 Macromodel MAX6817 Orcad Library MAX6817DEBOUNCE Test Circuit File MAX6818 ESD-Protected CMOS Switch Debouncer

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-12 of 12
MAX6816	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6816EUS			SOT-143;4 pin;8 mm² Dwg: 21-0052F (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6816EUS+			SOT-143;4 pin;8 mm² Dwg: 21-0052F (PDF) Use pkgcode/variation: U4+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6816EUS-T			SOT-143;4 pin;8 mm² Dwg: 21-0052F (PDF) Use pkgcode/variation: U4-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6816EUS+T			SOT-143;4 pin;8 mm² Dwg: 21-0052F (PDF) Use pkgcode/variation: U4+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6817	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6817EUT+			SOT-23;6 pin;9 mm² Dwg: 21-0058I (PDF) Use pkgcode/variation: U6+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6817EUT			SOT-23;6 pin;9 mm² Dwg: 21-0058I (PDF) Use pkgcode/variation: U6-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6817EUT-T			SOT-23;6 pin;9 mm² Dwg: 21-0058I (PDF) Use pkgcode/variation: U6-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6817EUT+T			SOT-23;6 pin;9 mm² Dwg: 21-0058I (PDF) Use pkgcode/variation: U6+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6818	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6818EAP+T			SSOP;20 pin;58 mm² Dwg: 21-0056C (PDF) Use pkgcode/variation: A20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6818EAP+			SSOP;20 pin;58 mm² Dwg: 21-0056C (PDF) Use pkgcode/variation: A20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6818EAP-T			SSOP;20 pin;58 mm² Dwg: 21-0056C (PDF) Use pkgcode/variation: A20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX6818EAP			SSOP;20 pin;58 mm² Dwg: 21-0056C (PDF) Use pkgcode/variation: A20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes and Comments

Single Switch Debouncer (MAX6816) Dual Switch Debouncer (MAX6817) Octal Switch Debouncer (MAX6818)

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers Parametric Search Applications Help

QuickView

Technical Documents

Ordering Info

More Information

Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits