HT66F4530 datasheet(37/224 Pages) HOLTEK

37 / 224 page

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HT66F4530/HT66F4540/HT66F4550

A/D Flash MCU with Dual Operational Amplifiers

HT66F4530/HT66F4540/HT66F4550

A/D Flash MCU with Dual Operational Amplifiers

W�ite�_VDD

ICPDA

ICPCK

W�ite�_VSS

To othe� Ci��uit

VDD

PA0

PA�

VSS

W�ite� Conne�to�

Signals

MCU P�og�a��ing

Pins

Note:*mayberesistororcapacitor.Theresistanceof*mustbegreaterthan1kΩorthecapacitance

of*mustbelessthan1nF.

On Chip Debug Support – OCDS

ThereisanEVchipnamedHT66V45x0whichisusedtoemulatetheHT66F45x0device.TheEV

chipdevicealsoprovidesan"On-ChipDebug"functiontodebugtherealMCUdeviceduringthe

developmentprocess.TheEVchipandtherealMCUdevicearealmostfunctionallycompatible

exceptfor"On-ChipDebug"function.UserscanusetheEVchipdevicetoemulatetherealchip

devicebehaviorbyconnectingtheOCDSDAandOCDSCKpinstotheHoltekHT-IDEdevelopment

tools.TheOCDSDApinistheOCDSData/Addressinput/outputpinwhiletheOCDSCKpinis

theOCDSclockinputpin.WhenusersusetheEVchipfordebugging,otherfunctionswhichare

sharedwiththeOCDSDAandOCDSCKpinsinthesedeviceswillhavenoeffectintheEVchip.

However,thetwoOCDSpinswhicharepin-sharedwiththeICPprogrammingpinsarestillused

astheFlashMemoryprogrammingpinsforICP.FormoredetailedOCDSinformation,refertothe

correspondingdocumentnamed"Holteke-Linkfor8-bitMCUOCDSUser’sGuide".

Holtek e-Link Pins

EV Chip Pins

Pin Description

OCDSDA

On-Chip De�ug Suppo�t Data/Add�ess input/output

OCDSCK

On-Chip De�ug Suppo�t Clo�k input

VDD

Powe� Supply

VSS

G�ound

HT66F4530 Datasheet(PDF) 37 Page - Holtek Semiconductor Inc

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