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HT67F488 датащи(PDF) 46 Page - Holtek Semiconductor Inc

номер детали HT67F488
подробное описание детали  TinyPowerTM A/D Flash MCU with LCD & EEPROM
PDF  171 Pages
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производитель  HOLTEK [Holtek Semiconductor Inc]
домашняя страница  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT67F488 датащи(HTML) 46 Page - Holtek Semiconductor Inc

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Rev. 1.60
46
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HT67F488/HT67F489
TinyPowerTM A/D Flash MCU with LCD & EEPROM
NORMAL Mode to SLOW Mode Switching
WhenrunningintheNORMALMode,whichusesthehighspeedsystemoscillator,andtherefore
consumesmorepower,thesystemclockcanswitchtorunintheSLOWModebysettheHLCLKbit
to“0”andsettheCKS2~CKS0bitsto“000”or“001”intheSMODregister.Thiswillthenusethe
lowspeedsystemoscillatorwhichwillconsumelesspower.Usersmaydecidetodothisforcertain
operationswhichdonotrequirehighperformanceandcansubsequentlyreducepowerconsumption.
TheSLOWModeissourcedfromtheLXTortheLIRCoscillatorsandthereforerequiresthese
oscillatorstobestablebeforefullmodeswitchingoccurs.ThisismonitoredusingtheLTObitinthe
SMODregister.
SL OW M ode
SL E EP0 M ode
SL E EP1 M ode
ID LE 0 M ode
ID LE 1 M ode
NO RM AL M od e
CK S2 ~ C KS0 = 00x B &
HL CL K = 0
WD T and LV D ar e al l of f
ID LE N = 0
HA LT i ns tr uc ti on is e xe cu te d
WD T or L VD i s on
ID LE N = 0
HA LT i ns tr uc ti on is e xe cu te d
ID LE N = 1, F SYS ON =0
HA LT i ns tr uc ti on i s ex ec ut ed
ID LE N = 1, F SYSO N= 1
HA LT i ns tr uc ti on is e xe cu te d



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