HT46R47-H
A.C. Characteristics
Ta=25°C
Test Conditions
Conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
VDD
VLVR~5.5V, LVR enabled
400
400
0
4000
8000
4000
8000
130
kHz
kHz
kHz
kHz
¾
¾
¾
¾
65
¾
fSYS
System Clock
¾
3.3V~5.5V, LVR disabled
VLVR~5.5V, LVR enabled
fTIMER
Timer I/P Frequency (TMR)
¾
3.3V~5.5V, LVR disabled
0
tWDTOSC
tWDT1
Watchdog Oscillator Period
5V
32
215
¾
¾
ms
tWDTOSC
Watchdog Time-out Period (RC)
216
¾
Watchdog Time-out Period
(System Clock)
217
218
tWDT2
tSYS
¾
¾
¾
tRES
tSST
tINT
External Reset Low Pulse Width
System Start-up Timer Period
Interrupt Pulse Width
1
¾
1
¾
¾
¾
¾
¾
¾
¾
¾
1024
¾
¾
¾
¾
¾
¾
¾
ms
*tSYS
Wake-up from HALT
¾
¾
¾
¾
ms
ms
tAD
A/D Clock Period
1
¾
tADC
tADCS
tAD
tAD
A/D Conversion Time
A/D Sampling Time
76
¾
¾
32
Note: *tSYS=1/fSYS
Ta=125°C
Test Conditions
Conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
VDD
VLVR~5.5V, LVR enabled
400
400
0
4000
8000
4000
8000
200
kHz
kHz
kHz
kHz
¾
¾
fSYS
System Clock
¾
3.3V~5.5V, LVR disabled
VLVR~5.5V, LVR enabled
¾
fTIMER
Timer I/P Frequency (TMR)
¾
3.3V~5.5V, LVR disabled
0
¾
tWDTOSC
tWDT1
Watchdog Oscillator Period
5V
60
215
110
¾
¾
¾
ms
tWDTOSC
Watchdog Time-out Period (RC)
216
¾
Watchdog Time-out Period
(System Clock)
217
218
tWDT2
tSYS
¾
¾
¾
tRES
tSST
tINT
External Reset Low Pulse Width
System Start-up Timer Period
Interrupt Pulse Width
1
¾
1
¾
¾
¾
¾
¾
¾
¾
¾
1024
¾
¾
¾
¾
¾
¾
¾
ms
*tSYS
Wake-up from HALT
¾
¾
¾
¾
ms
ms
tAD
A/D Clock Period
1
¾
tADC
tADCS
tAD
tAD
A/D Conversion Time
A/D Sampling Time
76
¾
¾
32
Note: *tSYS=1/fSYS
Rev. 1.30
6
March 1, 2006
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
