HT49CV9 データシートの表示（PDF） - Holtek Semiconductor
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HT49CV9 Datasheet PDF : 48 Pages
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HT49RV9/HT49CV9
A.C. Characteristics
Symbol
Parameter
Test Conditions
VDD
Conditions
fSYS1
System Clock
¾ 2.2V~5.5V
¾ 3.3V~5.5V
fSYS2
System Clock
(32768Hz Crystal OSC)
¾ 2.2V~5.5V
fRTCOSC RTC Frequency
¾
¾
fTIMER
Timer I/P Frequency
(TMR0/TMR1)
¾ 2.2V~5.5V
¾ 3.3V~5.5V
3V
¾
tWDTOSC Watchdog Oscillator Period
5V
¾
tRES
External Reset Low Pulse Width ¾
¾
tSST
System Start-up Timer Period
¾
Power-up or wake-up from
HALT
tINT
Interrupt Pulse Width
¾
¾
tAD
A/D Clock Period
¾
¾
tADC
A/D Conversion Time
¾
¾
tADCS A/D Sampling Time
¾
¾
Note: tSYS= 1/fSYS
Ta=25°C
Min. Typ. Max. Unit
400
¾ 4000 kHz
400
¾ 8000 kHz
¾ 32768 ¾
Hz
¾ 32768 ¾
Hz
0
¾ 4000 kHz
0
¾ 8000 kHz
45
90
180
ms
32
65
130
ms
1
¾
¾
ms
¾ 1024 ¾
tSYS
1
¾
¾
ms
1
¾
¾
ms
¾
76
¾
tAD
¾
32
¾
tAD
Rev. 1.00
6
April 20, 2006
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