HT46RU26/HT46CU26
A.C. Characteristics
Ta=25°C
Test Conditions
Conditions
2.2V~5.5V
Symbol
Parameter
Min.
Typ.
Max.
Unit
VDD
¾
400
400
0
4000
8000
4000
8000
180
kHz
kHz
kHz
kHz
ms
¾
¾
¾
¾
90
65
¾
fSYS
System Clock
3.3V~5.5V
¾
2.2V~5.5V
¾
Timer I/P Frequency
(TMR)
fTIMER
3.3V~5.5V
0
¾
3V
5V
¾
45
32
1
¾
¾
¾
tWDTOSC
Watchdog Oscillator Period
130
ms
tRES
tSST
tLVR
tINT
External Reset Low Pulse Width
System Start-up Timer Period
¾
ms
Wake-up from Power
Down
*tSYS
ms
1024
¾
¾
¾
Low Voltage Reset Time
Interrupt Pulse Width
A/D Clock Period
0.25
1
1
2
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
80
32
¾
¾
¾
¾
¾
¾
ms
ms
tAD
1
tADC
tADCS
tIIC
tAD
A/D Conversion Time
A/D Sampling Time
I2C Bus Clock Period
¾
¾
64
tAD
*tSYS
Note: *tSYS=1/fSYS
Rev. 1.00
6
June 12, 2008
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
