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HT45F4MA Datasheet(PDF) 42 Page - Holtek Semiconductor Inc

Part # HT45F4MA
Description  Power Bank Flash MCU
PDF  145 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F4MA Datasheet(HTML) 42 Page - Holtek Semiconductor Inc

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HT45F4MA/HT45FH4MA/HT45FH4MA-1
Power Bank Flash MCU
HT45F4MA/HT45FH4MA/HT45FH4MA-1
Power Bank Flash MCU
NORMAL Mode to SLOW Mode Switching
WhenrunningintheNORMALMode,whichusesthehighspeedsystemoscillator,andtherefore
consumesmorepower,thesystemclockcanswitchtorunintheSLOWModebysettingthe
HLCLKbitto0andsettingtheCKS2~CKS0bitsto000Bor001BintheSMODregister.Thiswill
thenusethelowspeedsystemoscillatorwhichwillconsumelesspower.Usersmaydecidetodothis
forcertainoperationswhichdonotrequirehighperformanceandcansubsequentlyreducepower
consumption.
TheSLOWModeissourcedfromtheLIRCoscillatorandthereforerequiresthisoscillatortobe
stablebeforefullmodeswitchingoccurs.ThisismonitoredusingtheLTObitintheSMODregister.
SL OW M ode
SL E EP 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
ID LE N = 0
HA LT i ns t ru ct i on is e xe cu t ed
ID LE N = 1, F SYS ON =0
HA LT i ns t ru ct io n is e xe cu t ed
ID LE N = 1, F SYSO N= 1
HA LT i ns t ru ct i on is e xe cu t ed



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