HT46R46/C46/R47/C47/R48A/C48A/R49
A.C. Characteristics
Ta=25°C
Test Conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
VDD
¾
Conditions
2.2V~5.5V
400
400
0
4000
8000
4000
8000
180
kHz
kHz
kHz
kHz
ms
¾
¾
¾
¾
90
65
fSYS
System Clock
3.3V~5.5V
2.2V~5.5V
3.3V~5.5V
¾
¾
Timer I/P Frequency
(TMR)
fTIMER
0
¾
3V
5V
45
32
¾
tWDTOSC
Watchdog Oscillator Period
130
¾
¾
ms
Watchdog Time-out Period
(RC)
215
217
216
218
tWDT1
tWDTOSC
¾
¾
¾
¾
Watchdog Time-out Period
(System Clock)
tWDT2
tSYS
¾
tRES
tSST
tLVR
tINT
External Reset Low Pulse Width
System Start-up Timer Period
Low Voltage Reset Time
Interrupt Pulse Width
1
¾
¾
¾
¾
¾
¾
¾
1024
1
¾
¾
2
ms
*tSYS
Wake-up from HALT
0.25
1
ms
¾
¾
¾
¾
ms
A/D Clock Period -
tAD1
0.5
1
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
64
76
32
32
¾
¾
¾
¾
¾
¾
ms
HT46R46
A/D Clock Period -
tAD2
ms
HT46R47/HT46R48A/HT46R49
A/D Conversion Time -
tADC1
tADC2
tADCS1
tADCS2
tAD1
tAD2
tAD1
tAD2
¾
¾
¾
¾
HT46R46
A/D Conversion Time -
HT46R47/HT46R48A/HT46R49
A/D Sampling Time -
HT46R46
A/D Sampling Time -
HT46R47/HT46R48A/HT46R49
Note: *tSYS=1/fSYS
Rev. 1.30
7
June 5, 2008
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
