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MAX6816_10 PDF预览

MAX6816_10

更新时间: 2024-11-23 11:15:07
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8页 614K
描述
±15kV ESD-Protected, Single/Dual/Octal, CMOS Switch Debouncers

MAX6816_10 数据手册

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19S4770; Rev 3; 8/10  
1ꢀ5k ꢁEDꢂ-rotected, Eingle/Dual/Octal,  
CMOE Ewitch Debouncers  
7/MAX618  
General Description  
Features  
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 ±±25 levels and are ±12ꢀ5 VꢁES  
protected for use in harsh industrial environments. They  
feature singleSsupply operation from +±.75 to +2.25.  
Undervoltage locꢀout circuitry ensures the output is in  
the correct state upon powerSup.  
o Robust Inputs can Exceed Power Supplies  
up to 2ꢀ5  
o ESD Protection for Input Pins  
1ꢀꢁ5V—uman ꢂody Model  
8ꢁ5VIEꢃ 1ꢄꢄꢄ-4-2, ꢃontact Discꢅarge  
1ꢀꢁ5VIEꢃ 1ꢄꢄꢄ-4-2, ꢆir-ꢇap Discꢅarge  
o Small SOT Pacꢁages (4 and 6 pins)  
o Single-Supply Operation from +2.75 to +ꢀ.ꢀ5  
o Single (MꢆX6816), Dual (MꢆX6817), and Octal  
(MꢆX6818) 5ersions ꢆvailable  
The single MAX6816 and dual MAX6817 are offered in  
ꢁOT pacꢀages and require no external components.  
Their low supply current maꢀes them ideal for use in  
portable equipment.  
o No External ꢃomponents Required  
o 6µꢆ Supply ꢃurrent  
o Tꢅree-State Outputs for Directly Interfacing  
The MAX6818 octal switch debouncer is designed for  
dataSbus interfacing. The MAX6818 monitors switches  
and provides a switch changeSofSstate output (CH),  
simplifying microprocessor (µP) polling and interrupts.  
Additionally, the MAX6818 has threeSstate outputs conS  
trolled by an enable (EN) pin, and is pinScompatible  
with the Lꢁ273 octal latch (except for the CH pin),  
allowing easy interfacing to a digital data bus.  
Switcꢅes to µP Data ꢂus (MꢆX6818)  
o Switcꢅ ꢃꢅange-of-State Output Simplifies  
Polling and Interrupts (MꢆX6818)  
o Pin-ꢃompatible witꢅ ’LSꢀ73 (MꢆX6818)  
Ordering Information  
PIN-  
SOT  
Applications  
PꢆRT  
TEMP RꢆNꢇE  
PꢆꢃKꢆꢇE TOP MꢆRK  
µP ꢁwitch Interfacing  
Industrial Instruments  
PCSBased Instruments  
Portable Instruments  
Automotive Applications  
Membrane Keypads  
MꢆX6816VUꢁST S40°C to +1±2°C 4 ꢁOT143  
MꢆX6817VUTST S40°C to +1±2°C 6 ꢁOT±3S6  
KABA  
AAAU  
MꢆX6818VAP  
S40°C to +1±2°C ±0 ꢁꢁOP  
Note: There is a minimum order increment of ±200 pieces for  
ꢁOT pacꢀages.  
Eevices are available in both leaded and leadSfree pacꢀaging.  
ꢁpecify leadSfree by replacing “ST” with “+T” when ordering.  
-in Configurations  
Typical Operating Circuit  
TOP VIEW  
V
CC  
GND  
1
4
V
CC  
MAX6816  
µP  
MAX6816  
MECHANICAL  
SWITCH  
0.1µF  
IN  
OUT  
RESET  
DEBOUNCED  
OUTPUT  
IN  
3
OUT  
2
GND  
SOT143  
Pin Configurations continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  

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