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HT49CV9 Datasheet(PDF) 6 Page - Holtek Semiconductor Inc

Part # HT49CV9
Description  A/D With VFD Type 8-Bit MCU
Download  48 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT49CV9 Datasheet(HTML) 6 Page - Holtek Semiconductor Inc

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A.C. Characteristics
Ta=25
°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
fSYS1
System Clock
¾ 2.2V~5.5V
400
¾
4000
kHz
¾ 3.3V~5.5V
400
¾
8000
kHz
fSYS2
System Clock
(32768Hz Crystal OSC)
¾ 2.2V~5.5V
¾
32768
¾
Hz
fRTCOSC
RTC Frequency
¾¾
¾
32768
¾
Hz
fTIMER
Timer I/P Frequency
(TMR0/TMR1)
¾ 2.2V~5.5V
0
¾
4000
kHz
¾ 3.3V~5.5V
0
¾
8000
kHz
tWDTOSC Watchdog Oscillator Period
3V
¾
45
90
180
ms
5V
¾
32
65
130
ms
tRES
External Reset Low Pulse Width
¾¾
1
¾¾
ms
tSST
System Start-up Timer Period
¾
Power-up or wake-up from
HALT
¾
1024
¾
tSYS
tINT
Interrupt Pulse Width
¾¾
1
¾¾
ms
tAD
A/D Clock Period
¾¾
1
¾¾
ms
tADC
A/D Conversion Time
¾¾
¾
76
¾
tAD
tADCS
A/D Sampling Time
¾¾
¾
32
¾
tAD
Note:
tSYS= 1/fSYS
HT49RV9/HT49CV9
Rev. 1.00
6
April 20, 2006


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