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HT45FM2C Datasheet(PDF) 110 Page - Holtek Semiconductor Inc

Part # HT45FM2C
Description  Brushless DC Motor Flash Type 8-Bit MCU
PDF  171 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45FM2C Datasheet(HTML) 110 Page - Holtek Semiconductor Inc

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Rev. 1.10
110
�a� �0� �01�
Rev. 1.10
111
�a� �0� �01�
HT45FM2C
Brushless DC Motor Flash Type 8-Bit MCU
HT45FM2C
Brushless DC Motor Flash Type 8-Bit MCU
Preliminar�
.
AT0,AB0,BT0,BB0,CT0,CB0
Dead-Time
Insertion
Dead-Time
Insertion
Dead-Time
Insertion
Dead-Time Insertion
1.Rising Add Dead-Time Insertion
2.Falling Unchange
AT1,AB1,BT1,BB1,CT1,CB1
Dead Time Insertion Timing
Asingleregister,DTS,isdedicatedforusebytheDeadTimefunction.
DTS Register
Bit
7
6
5
4
3
2
1
0
Name
DTCKS1
DTCKS0
DTE
D4
D�
D�
D1
D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit 7~6
DTCKS1, DTCKS0
:Dead-Timeclocksourceselection
00: fDTisfSYS,fSYSbasedon20MHz
01: fDTisfSYS/2
10: fDTisfSYS/4
11: fDTisfSYS/8
Bit 5
DTE:
Dead-TimeEnable
0:Dead-Time=0
1:Dead-Time=(DTS[4:0]+1)/fDT
Bit 4~0
D4~D0:
Dead-TimeRegisterbit4~bit0
Dead-Timecounter.5-bitDead-TimevaluebitsforDead-TimeUnit.
Dead-Time=(DTS[4:0]+1)/fDT
Staggered Function
TheStaggeredFunctionisusedtoforcealloutputdrivetransistorstoanoffconditionwhena
softwareerroroccursorduetoexternalfactorssuchasESD.
AT1
AB1
AT2
AB2
0
0
0
0
0
1
0
1
1
0
1
0
1
1
0
0
ThedefaultconditionfortheBLDCmotorcontrolcircuitisdesignedfordefaultN-typetransistor
pairs.Thismeansa“1”valuewillswitchthetransistoronanda“0”valuewillswitchitoff.



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