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HT67F488 Datasheet(PDF) 47 Page - Holtek Semiconductor Inc

Part # HT67F488
Description  TinyPowerTM A/D Flash MCU with LCD & EEPROM
PDF  171 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT67F488 Datasheet(HTML) 47 Page - Holtek Semiconductor Inc

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Rev. 1.60
47
�ove��e� ��� �016
HT67F488/HT67F489
TinyPowerTM A/D Flash MCU with LCD & EEPROM
SLOW Mode to NORMAL Mode Switching
InSLOWModethesystemuseseithertheLXTorLIRClowspeedsystemoscillator.Toswitch
backtotheNORMALMode,wherethehighspeedsystemoscillatorisused,theHLCLKbitshould
besetto“1”orHLCLKbitis“0”,butCKS2~CKS0issetto“010”,“011”,“100”,“101”,“110”
or“111”.Asacertainamountoftimewillberequiredforthehighfrequencyclocktostabilise,
thestatusoftheHTObitischecked.Theamountoftimerequiredforhighspeedsystemoscillator
stabilizationdependsuponwhichhighspeedsystemoscillatortypeisused.
NO RM AL M ode
SL EEP0 M od e
SL EEP1 M od e
ID LE 0 M ode
ID LE 1 M ode
SL OW M ode
CK S2 ~C KS 0 ¹ 000 B, 0 01 B as H LC LK =0
or H LC LK =1
WD T and L V 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 V D is o n
ID LE N = 0
HA LT i ns tr uc ti on is e xe cu te d
ID LE N = 1, F SYSO N= 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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