HT46R63/HT46C63
A.C. Characteristics
Ta=25°C
Test Conditions
Conditions
2.2V~5.5V
Symbol
Parameter
Min.
Typ.
Max.
Unit
VDD
¾
400
400
4000
8000
¾
¾
fSYS1
fSYS2
fTIMER
System Clock (Crystal)
kHz
Hz
3.3V~5.5V
¾
System Clock
2.2V~5.5V
32768
¾
¾
¾
(32768Hz Crystal OSC)
2.2V~5.5V
3.3V~5.5V
0
0
4000
8000
180
¾
¾
¾
¾
90
65
Timer Input Frequency
kHz
3V
5V
45
32
tWDTOSC
Watchdog Oscillator Period
¾
ms
130
65536 ´ tSYS or
65536 ´ tWDTOSC or
65536 ´ tRTCOSC
tWDT
Note: tSYS=4/fSYS
Watchdog Time-out Period
¾
tRES
tSST
External Reset Low Pulse Width
System Start-up Timer Period
1
¾
¾
¾
¾
¾
¾
ms
Power-up or wake-up from
HALT
tSYS
1024
¾
tINT
Interrupt Pulse Width
A/D Clock Period
1
1
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
32
¾
¾
¾
¾
¾
3
ms
ms
tAD
tADC
tADCS
tCOMP
tAD
tAD
A/D Conversion Time
A/D Sampling Time
64
¾
¾
Response Time of Comparator
ms
Note: tSYS=1/fSYS
Rev. 1.90
7
May 17, 2004
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
