HT49CV7 View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
MFG CO.
HT49CV7 Datasheet PDF : 48 Pages
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HT49RV7/HT49CV7
A.C. Characteristics
Ta=25°C
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
Min.
400
400
¾
¾
0
0
45
32
1
¾
1
1
¾
¾
Typ.
¾
¾
32768
32768
¾
¾
90
65
¾
1024
¾
¾
76
32
Max.
4000
8000
¾
¾
4000
8000
180
130
¾
¾
¾
¾
¾
¾
Unit
kHz
kHz
Hz
Hz
kHz
kHz
ms
ms
ms
tSYS
ms
ms
tAD
tAD
Note: tSYS= 1/fSYS
Rev. 1.00
6
April 20, 2006
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