Texas Instruments MAX3227 Handleiding
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FEATURESAPPLICATIONS
DB PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
READY
C1+
V+
C1−
C2+
C2−
V−
RIN
FORCEOFF
V
CC
GND
DOUT
FORCEON
DIN
INVALID
ROUT
DESCRIPTION/ORDERINGINFORMATION
MAX3227
3-VTO5.5-VSINGLE-CHANNELRS-232LINEDRIVER/RECEIVER
WITH±15-kVESDPROTECTION
SLLS673A–AUGUST2005–REVISEDFEBRUARY2006
•Battery-Powered,Hand-Held,andPortable
•MeetsorExceedstheRequirementsof
Equipment
TIA/EIA-232-FandITUv.28Standards
•PDAsandPalmtopPCs
•OperatesWith3-Vto5.5-VV
CC
Supply
•Notebooks,Sub-Notebooks,andLaptops
•OperatesatLeast1Mbit/s
•DigitalCameras
•LowStandbyCurrent...1µATyp
•MobilePhonesandWirelessDevices
•ExternalCapacitors...4×0.1µF
•Accepts5-VLogicInputWith3.3-VSupply
•DesignedtoBeInterchangeableWithMaxim™
MAX3227
•Latch-UpPerformanceExceeds100mAPer
JESD78,ClassII
•ESDProtectionforRS-232I/OPins
–±15kV–Human-BodyModel
–±8kV–IEC61000-4-2,ContactDischarge
–±8kV–IEC61000-4-2,Air-GapDischarge
•Auto-PowerdownPlusFeatureAutomatically
DisablesDriversforPowerSavings
•PackagedinPlasticShrinkSmall-Outline
Package
TheMAX3227consistsofonelinedriver,onelinereceiver,andadualcharge-pumpcircuitwith±15-kVESD
protectionpintopin(serial-portconnectionpins,includingGND).Thedevicemeetstherequirementsof
TIA/EIA-232-Fandprovidestheelectricalinterfacebetweenanasynchronouscommunicationcontrollerandthe
serial-portconnector.Thechargepumpandfoursmallexternalcapacitorsallowoperationfromasingle3-Vto
5.5-Vsupply.Thisdeviceoperatesatdata-signalingratesof1Mbit/sinnormaloperatingmodeandamaximum
of30-V/µsdriveroutputslewrate.Thisdevicealsofeaturesalogic-leveloutput(READY)thatassertswhenthe
chargepumpisregulatingandthedeviceisreadytobegintransmitting.
TheMAX3227achievesa1-µAsupplycurrentusingtheauto-powerdownplusfeature.Thisdeviceautomatically
entersalow-powerpowerdownmodewhentheRS-232cableisdisconnectedorthedriversoftheconnected
peripheralsareinactiveformorethan30s.Theyturnonagainwhentheysenseavalidtransitionatanydriveror
receiverinput.Auto-powerdownsavespowerwithoutchangestotheexistingBIOSoroperatingsystem.
TheMAX3227Cischaracterizedforoperationfrom0°Cto70°C.TheMAX3227Iischaracterizedforoperation
from–40°Cto85°C.
AVAILABLEOPTIONS
PACKAGEDDEVICE
T
A
SHRINKSMALLOUTLINE
(DB)
(1)
0°Cto70°CMAX3227CDB
–40°Cto85°CMAX3227IDB
(1)TheDBpackageisavailabletapedandreeled.AddthesuffixRto
devicetype(e.g.,MAX3227CDBR).
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2005–2006,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | MAX3227 |
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