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HT45R4U датащи(PDF) 11 Page - Holtek Semiconductor Inc

номер детали HT45R4U
подробное описание детали  TinyPowerTM A/D Type e-Banking ASSP OTP MCU with LCD
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производитель  HOLTEK [Holtek Semiconductor Inc]
домашняя страница  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45R4U датащи(HTML) 11 Page - Holtek Semiconductor Inc

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Rev. 1.10
10
�a��� 1�� �01�
Rev. 1.10
11
�a��� 1�� �01�
HT45R4U
TinyPowerTM A/D Type
e-Banking ASSP OTP MCU with LCD
A.C. Characteristics
Ta= 25˚C
Symbol
Parameter
VDD
Condition
Min.
Typ. Max. Unit
fSYS1
System Clo�k
(C�ystal OSC� HIRC OSC)
�.�V~3.6V
400
4000 kHz
fSYS�
System Clo�k (LXT)
�.�V~3.6V
3�768
Hz
fLXT
3�768Hz C�ystal F�equen�y
3�768
Hz
fTI�ER
Time� I/P F�equen�y (T�R0~�)
�.�V~3.6V
0
4000 kHz
tT�R
T�Rn Input Pin �inimum Pulse Widt�
0.3
μs
tRES
Exte�nal Reset �inimum Low Pulse
Widt�
10
μs
tINT
Inte��upt Pulse Widt�
10
μs
tAD
A/D Clo�k Pe�iod
0.�
μs
tADC
A/D Conve�sion Time
16
tAD
tON�ST
ADC on to ADC Sta�t
�.�V~3.6V
�000
ns
tSST
System Sta�t-up Time� Pe�iod
(Wake-up f�om HALT� fSYS off at HALT
state, Slow Mode → Normal Mode,
Normal Mode → Slow Mode)
fSYS =HXT
(Slow Mode →
No�mal �ode(HXT))
10�4
tSYS
fSYS =LXT
(Normal Mode →
Slow �ode(LXT))
10�4
tSYS
fSYS= HXT o� LXT
(Wake-up f�om HALT�
fSYS off at HALT state)
10�4
tSYS
fSYS= HIRC
16
tSYS
fSYS= EC
tSYS
System Sta�t-up Time� Pe�iod
(Wake-up f�om HALT� fSYS on at HALT
State)
tSYS
tRSTD
System Reset Delay Time
(Powe� On Reset� LVR Reset�
LVR S/W Reset(LVRC)� WDT S/W
Reset(WDTC))
��
�0
100
ms
System Reset Delay Time
(Any Reset ex�ept Powe� On Reset)
(RES Reset� WDT No�mal Reset)
8.3
16.7
33.3
ms
Note:1.tSYS=1/fSYS1or1/fSYS2
2.ADCconversiontime(tAD)=n(bitsADC)+4(samplingtime),TheconversionforeachbitneedsoneADC
clock(tAD).


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