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HT66F302 Datasheet(PDF) 35 Page - Holtek Semiconductor Inc

Part # HT66F302
Description  Cost-Effective Flash MCU with EEPROM
PDF  129 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT66F302 Datasheet(HTML) 35 Page - Holtek Semiconductor Inc

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Rev. 1.11
34
April 11, 2017
Rev. 1.11
35
April 11, 2017
HT66F302/HT66F303
Cost-Effective Flash MCU with EEPROM
HT66F302/HT66F303
Cost-Effective Flash MCU with EEPROM
HIRC
Prescaler
fH
LIRC
Low Speed Oscillator
fH/2
fH/16
fH/64
fH/8
fH/4
fH/32
HLCLK
CKS2~CKS0 bits
fSYS
fLIRC
High Speed Oscillator
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



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