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HT66F005 데이터시트(PDF) 32 Page - Holtek Semiconductor Inc

부품명 HT66F005
상세설명  Cost-Effective A/D Flash MCU with EEPROM
PDF  109 Pages
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제조업체  HOLTEK [Holtek Semiconductor Inc]
홈페이지  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT66F005 데이터시트(HTML) 32 Page - Holtek Semiconductor Inc

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Rev. 1.30
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33
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HT66F005/HT66F006
Cost-Effective A/D Flash MCU with EEPROM
HT66F005/HT66F006
Cost-Effective A/D Flash MCU with EEPROM
OS C1
OS C2
Rf
To i nt er nal
ci rc ui ts
In te rn al
O sci lla to r
Ci rc ui t
C1
C2
Rp
No te :1 . Rp i s nor ma lly not r equi r ed. C 1 and C2 a re r equ ir ed.
2. A lt hough not s how n OS C1 /O SC 2 pi ns h av e a pa ra si ti c
c apac it an ce o f a r ound 7pF .
Crystal/Resonator Oscillator – HXT
Crystal Oscillator C1 and C2 Values
Crystal Frequency
C1
C2
1�MHz
0�F
0�F
8MHz
0�F
0�F
4MHz
0�F
0�F
1MHz
100�F
100�F
Note: C1 and C� va�ues a�e fo� guidance on�y.
Crystal Recommended Capacitor Values
High Speed Internal RC Oscillator – HIRC
TheinternalRCoscillatorisafullyintegratedsystemoscillatorrequiringnoexternalcomponents.
TheinternalRCoscillatorhasthreefixedfrequenciesofeither4MHz,8MHzor12MHz.Device
trimmingduringthemanufacturingprocessandtheinclusionofinternalfrequencycompensation
circuitsareusedtoensurethattheinfluenceofthepowersupplyvoltage,temperatureandprocess
variationsontheoscillationfrequencyareminimised.Notethatifthisinternalsystemclockoption
isselectedasthehighspeedoscillator,asitrequiresnoexternalpinsforitsoperation,I/OpinsPA6
andPA5canonlybeusedasnormalI/Opins.
Internal 32kHz Oscillator – LIRC
TheInternal32kHzSystemOscillatoristhelowfrequencyoscillator.Itisafullyintegrated
RCoscillatorwithatypicalfrequencyof32kHzat5V,requiringnoexternalcomponentsforits
implementation.Devicetrimmingduringthemanufacturingprocessandtheinclusionofinternal
frequencycompensationcircuitsareusedtoensurethattheinfluenceofthepowersupplyvoltage,
temperatureandprocessvariationsontheoscillationfrequencyareminimised.
Supplementary Oscillator
Thelowspeedoscillator,inadditiontoprovidingasystemclocksourceisalsousedtoprovide
aclocksourcetotwootherdevicefunctions.ThesearetheWatchdogTimerandtheTimeBase
Interrupts.



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