 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
HT45F2020 датащи(PDF) 17 Page - Holtek Semiconductor Inc |
|
|
|||||||||||||||||||||||||||||
HT45F2020 датащи(HTML) 17 Page - Holtek Semiconductor Inc |
|
|
17 / 85 page  Rev. 1.00 16 April 11, 2017 Rev. 1.00 17 April 11, 2017 HT45F2020/HT45F2022 Sound Effect Generator Flash MCU HT45F2020/HT45F2022 Sound Effect Generator Flash MCU In Circuit Programming – ICP TheprovisionofFlashtypeProgramMemoryprovidestheuserwithameansofconvenientandeasy upgradesandmodificationstotheirprogramsonthesamedevice.Asanadditionalconvenience, Holtekhasprovidedameansofprogrammingthemicrocontrollerin-circuitusinga4-pininterface. Thisprovidesmanufacturerswiththepossibilityofmanufacturingtheircircuitboardscompletewith aprogrammedorun-programmedmicrocontroller,andthenprogrammingorupgradingtheprogram atalaterstage.Thisenablesproductmanufacturerstoeasilykeeptheirmanufacturedproducts suppliedwiththelatestprogramreleaseswithoutremovalandre-insertionofthedevice. TheHoltekFlashMCUtoWriterProgrammingPincorrespondencetableisasfollows: Holtek Writer Pins MCU Programming Pins Pin Description ICPDA PA0 Programming Serial Data/Address ICPCK PA2 Programming Clock VDD VDD Power Supply VSS VSS Ground TheProgramMemorycanbeprogrammedseriallyin-circuitusingthis4-wireinterface.Data isdownloadedanduploadedseriallyonasinglepinwithanadditionallinefortheclock.Two additionallinesarerequiredforthepowersupply.Thetechnicaldetailsregardingthein-circuit programmingofthedevicearebeyondthescopeofthisdocumentandwillbesuppliedin supplementaryliterature. Duringtheprogrammingprocess,theusercantakecontroloftheICPDAandICPCKpinsfordata andclockprogrammingpurposestoensurethatnootheroutputsareconnectedtothesetwopins. * * Writer_VDD ICPDA ICPCK Writer_VSS To other Circuit VDD PA0 PA2 VSS Writer Connector Signals MCU Programming Pins Note:*mayberesistororcapacitor.Theresistanceof*mustbegreaterthan1kΩorthecapacitance of*mustbelessthan1nF. |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
