HT66F4530 datasheet(23/224 Pages) HOLTEK

23 / 224 page

Rev. 1.00

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Rev. 1.00

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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

A.C. Characteristics

Fordatainthefollowingtables,notethatfactorssuchasoscillatortype,operatingvoltage,operating

frequencyandtemperatureetc.,canallexertaninfluenceonthemeasuredvalues.

High Speed Internal Oscillator – HIRC – Frequency Accuracy

DuringtheprogramwritingoperationthewriterwilltrimtheHIRCoscillatoratauserselected

HIRCfrequencyanduserselectedvoltageofeither3Vor5V.

3V Trim

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Temperature

fHIRC

�MHz W�ite� T�i��ed HIRC

F�equen�y

Ta=�5°C

-1%

�

+1%

MHz

Ta= -40°C~85°C

-�%

�

+�%

�.�V~5.5V

Ta=�5°C

-4%

�

+4%

Ta= -40°C~85°C

-�%

�

+�%

4MHz W�ite� T�i��ed HIRC

F�equen�y

Ta=�5°C

-1%

+1%

MHz

Ta= -40°C~85°C

-�%

+�%

�.�V~5.5V

Ta=�5°C

-3%

+3%

Ta= -40°C~85°C

-4%

+4%

8MHz W�ite� T�i��ed HIRC

F�equen�y

Ta=�5°C

-1%

+1%

MHz

Ta= -40°C~85°C

-�%

+�%

�.�V~5.5V

Ta=�5°C

-�.5%

+�.5%

Ta=-40°C~85°C

-3%

+3%

5V Trim

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Temperature

fHIRC

�MHz W�ite� T�i��ed HIRC

F�equen�y

Ta=�5°C

-1%

�

+1%

MHz

Ta= -40°C~85°C

-�%

�

+�%

�.�V~5.5V

Ta=�5°C

-7%

�

+7%

Ta= -40°C~85°C

-8%

�

+8%

4MHz W�ite� T�i��ed HIRC

F�equen�y

Ta=�5°C

-1%

+1%

MHz

Ta= -40°C~85°C

-�%

+�%

�.�V~5.5V

Ta=�5°C

-5%

+5%

Ta= -40°C~85°C

-�%

+�%

8MHz W�ite� T�i��ed HIRC

F�equen�y

Ta=�5°C

-1%

+1%

MHz

Ta= -40°C~85°C

-�%

+�%

�.�V~5.5V

Ta=�5°C

-�.5%

+�.5%

Ta=-40°C~85°C

-4%

+4%

Notes:1.Theparametervaluesfor3V/5Vtrimareprovidedasthesearethetwoselectablefixedvoltagesatwhich

theHIRCfrequencyistrimmedbythewriter.

2.Theminimumandmaximumtolerancevaluesprovidedinthetableareonlyforthefrequencyatwhich

thewritertrimstheHIRCoscillator.Aftertrimmingatthischosenspecificfrequencyanychangein

HIRCoscillatorfrequencyusingtheoscillatorregistercontrolbitsbytheapplicationprogramwillgivea

frequencytolerancetowithin±20%.

3.Itisrecommendedthatthetrimvoltageisfixedat3Vforapplicationvoltagerangesfrom2.2Vto5.5V,

astheHIRCfrequencytoleranceislowerthanthattrimmedat5V.

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