HT46R12A
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
(TMR0/TMR1)
fTIMER
3.3V~5.5V
0
¾
3V
5V
¾
45
32
1
¾
¾
¾
tWDTOSC
Watchdog Oscillator Period
130
ms
tRES
tSST
External Reset Low Pulse Width
System Start-up Timer Period
¾
ms
Power-up or Wake-up
from HALT
*tSYS
1024
¾
¾
¾
tINT
Interrupt Pulse Width
A/D Clock Period
1
1
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
76
32
¾
¾
¾
¾
ms
ms
tAD
tADC
tADCS
tAD
tAD
A/D Conversion Time
A/D Sampling Time
¾
¾
Note: *tSYS=1/fSYS
Comparator Electrical Characteristics
Ta=25°C
Test Conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
VDD
¾
Conditions
Comparator Operating Voltage
Comparator Operating Current
Comparator Input Offset Voltage
Comparator Input Offset Voltage
2.2
¾
5.5
200
10
2
V
¾
¾
¾
¾
¾
¾
¾
5V
5V
mA
mV
mV
VOPOS1
VOPOS2
VCM
tPD
-10
-2
5V By calibraton
Comparator Common Mode
Voltage Range
VDD-
1.4V
VSS
V
¾
¾
¾
¾
¾
Comparator Response Time
With 10mV overdrive
2
¾
ms
Note: If the comparator input voltage is not equal to VDD or VSS, there may be more IDD/ISTB current consumed by the
pin-shared logic input function whether the comparator is enabled or disabled.
Typically, the current for each comparator input pin is about 500mA (VDD=5V) if its input voltage is 2.5V.
Rev. 1.00
5
August 3, 2007
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
