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HT46R002 датащи(PDF) 28 Page - Holtek Semiconductor Inc |
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HT46R002 датащи(HTML) 28 Page - Holtek Semiconductor Inc |
28 / 83 page Rev. 1.21 28 April 11, 2017 Rev. 1.21 29 April 11, 2017 HT46R002/HT46R003 Cost-Effective A/D 8-Bit OTP MCU HT46R002/HT46R003 Cost-Effective A/D 8-Bit OTP MCU Forapplicationsthatoperatewithinanenvironmentwheremorenoiseispresenttheresetcircuit shownisrecommended. RE S/ PA 7 0. 1~ 1 m F 10k W ~ 100k W VD D VS S 0. 01 m F* * V DD 1N 4148* 300 W * Note:“*”ItisrecommendedthatthiscomponentisaddedforaddedESDprotection. “**”Itisrecommendedthatthiscomponentisaddedinenvironmentswherepower linenoiseissignificant. External RES Circuit MoreinformationregardingexternalresetcircuitsislocatedinApplicationNoteHA0075Eonthe Holtekwebsite. RES Pin Reset ThistypeofresetoccurswhenthemicrocontrollerisalreadyrunningandtheRESpinisforcefully pulledlowbysoftwarecontrolusingtheregisterEXTRESB.Inthiscaseofotherreset,theProgram Counterwillresettozeroandprogramexecutioninitiatedfromthispoint. RE S In te r nal R es et 0. 9 V DD 0. 4 V DD t RS TD + t SST Note:TRSTDispower-ondelay,typicaltime=50ms RES Reset Timing Chart • EXTRESB Register Bit 7 6 5 4 3 2 1 0 Name — — — RESBEN4 RESBEN3 RESBEN2 RESBEN1 RESBEN0 R/W — — — R/W R/W R/W R/W R/W POR — — — 0 0 0 0 0 Bit7~5 Describedinothersection. Bit4~0 RESBEN4~RESBEN0:ExternalResetPinselect 00000:I/OPin 10101:ExternalResetPin Other:MCUreset Whenthesebitsarechangedbytheenvironmentalnoisetoresetthemicrocontroller, theresetoperationwillbeactivatedafter2~3LIRCclockcycles. |
Аналогичный номер детали - HT46R002 |
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Аналогичное описание - HT46R002 |
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