HT46R14A
A.C. Characteristics
Test Conditions
Symbol
Parameter
V
DD
f
SYS
System Clock
Timer I/P Frequency
(TMR0/TMR1)
Watchdog Oscillator Period
5V
t
RES
t
SST
t
INT
t
AD
t
ADC
t
ADCS
External Reset Low Pulse Width
System Start-up Timer Period
Interrupt Pulse Width
A/D Clock Period
A/D Conversion Time
A/D Sampling Time
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
3V
Conditions
2.2V~5.5V
3.3V~5.5V
2.2V~5.5V
3.3V~5.5V
¾
¾
¾
Power-up or Wake-up
from HALT
¾
¾
¾
¾
400
400
0
0
45
32
1
¾
1
1
¾
¾
¾
¾
¾
¾
90
65
¾
1024
¾
¾
76
32
4000
8000
4000
8000
180
130
¾
¾
¾
¾
¾
¾
kHz
kHz
kHz
kHz
ms
ms
ms
*t
SYS
ms
ms
t
AD
t
AD
Min.
Typ.
Max.
Unit
Ta=25°C
f
TIMER
t
WDTOSC
Note: *t
SYS
=1/f
SYS
Comparator Electrical Characteristics
Test Conditions
Symbol
Parameter
V
DD
Comparator Operating Voltage
Comparator Operating Current
V
OPOS1
V
OPOS2
V
CM
t
PD
Note:
Comparator Input Offset Voltage
Comparator Input Offset Voltage
Comparator Common Mode
Voltage Range
Comparator Response Time
¾
5V
5V
5V
¾
¾
Conditions
¾
¾
¾
By calibraton
¾
With 10mV overdrive
2.2
¾
-10
-2
V
SS
¾
¾
¾
¾
¾
¾
¾
5.5
200
10
2
V
DD
-
1.4V
2
Min.
Typ.
Max.
Ta=25°C
Unit
V
mA
mV
mV
V
ms
If the comparator input voltage is not equal to V
DD
or V
SS
, there may be more I
DD
/I
STB
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 (V
DD
=5V) if its input voltage is 2.5V.
Rev. 1.00
5
August 3, 2007
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
