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HT66F002 데이터시트(PDF) 39 Page - Holtek Semiconductor Inc

부품명 HT66F002
상세설명  Cost-Effective A/D Flash MCU with EEPROM
PDF  144 Pages
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제조업체  HOLTEK [Holtek Semiconductor Inc]
홈페이지  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT66F002 데이터시트(HTML) 39 Page - Holtek Semiconductor Inc

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Rev. 1.71
38
April 11, 2017
Rev. 1.71
39
April 11, 2017
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
HIRC
Prescaler
fH
LIRC
Low Speed Oscillation
fH/2
fH/16
fH/64
fH/8
fH/4
fH/32
HLCLK
CKS2~CKS0 bits
fSYS
fLIRC
High Speed Oscillation
WDT
fSYS/4
fTB
Time Base 0
Time Base 1
TBCK
fL
fTBC
IDLEN
System Clock Configurations
Note:WhenthesystemclocksourcefSYSisswitchedtofLfromfH,thehighspeedoscillationwill
stoptoconservethepower.ThusthereisnofH~fH/64forperipheralcircuittouse.
System Operation Modes
Therearesixdifferentmodesofoperationforthemicrocontroller,eachonewithitsown
specialcharacteristicsandwhichcanbechosenaccordingtothespecificperformanceand
powerrequirementsoftheapplication.Therearetwomodesallowingnormaloperationofthe
microcontroller,theNORMALModeandSLOWMode.Theremainingfourmodes,theSLEEP0,
SLEEP1,IDLE0andIDLE1modesareusedwhenthemicrocontrollerCPUisswitchedoffto
conservepower.
Operating
Mode
Description
CPU
fSYS
fLIRC
fTBC
NORMAL mode
On
fH~fH/64
On
On
SLOW mode
On
fL
On
On
IDLE0 mode
Off
Off
On
On
IDLE1 mode
Off
On
On
On
SLEEP0 mode
Off
Off
Off
Off
SLEEP1 mode
Off
Off
On
Off
NORMAL Mode
Asthenamesuggeststhisisoneofthemainoperatingmodeswherethemicrocontrollerhasall
ofitsfunctionsoperationalandwherethesystemclockisprovidedthehighspeedoscillator.This
modeoperatesallowingthemicrocontrollertooperatenormallywithaclocksourcewillcomefrom
thehighspeedoscillatorHIRC.Thehighspeedoscillatorwillhoweverfirstbedividedbyaratio
rangingfrom1to64,theactualratiobeingselectedbytheCKS2~CKS0andHLCLKbitsinthe
SMODregister.Althoughahighspeedoscillatorisused,runningthemicrocontrolleratadivided
clockratioreducestheoperatingcurrent.



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