HT46R14A Просмотр технического описания (PDF) - Holtek Semiconductor
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HT46R14A Datasheet PDF : 49 Pages
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HT46R14A
A.C. Characteristics
Symbol
Parameter
fSYS
System Clock
fTIMER
Timer I/P Frequency
(TMR0/TMR1)
tWDTOSC Watchdog Oscillator Period
tRES
External Reset Low Pulse Width
tSST
System Start-up Timer Period
tINT
tAD
tADC
tADCS
Interrupt Pulse Width
A/D Clock Period
A/D Conversion Time
A/D Sampling Time
Note: *tSYS=1/fSYS
Test Conditions
VDD
Conditions
¾ 2.2V~5.5V
¾ 3.3V~5.5V
¾ 2.2V~5.5V
¾ 3.3V~5.5V
3V
¾
5V
¾
¾
¾
¾
Power-up or Wake-up
from HALT
¾
¾
¾
¾
¾
¾
¾
¾
Min.
400
400
0
0
45
32
1
¾
1
1
¾
¾
Typ.
¾
¾
¾
¾
90
65
¾
1024
¾
¾
76
32
Ta=25°C
Max. Unit
4000
8000
4000
8000
180
130
¾
¾
¾
¾
¾
¾
kHz
kHz
kHz
kHz
ms
ms
ms
*tSYS
ms
ms
tAD
tAD
Comparator Electrical Characteristics
Ta=25°C
Symbol
Parameter
Test Conditions
VDD
Conditions
Min. Typ. Max. Unit
Comparator Operating Voltage
¾
¾
2.2
¾
5.5
V
Comparator Operating Current
5V
¾
¾
¾
200
mA
VOPOS1 Comparator Input Offset Voltage 5V
¾
-10
¾
10
mV
VOPOS2 Comparator Input Offset Voltage 5V By calibraton
-2
¾
2
mV
VCM
Comparator Common Mode
Voltage Range
¾
¾
VSS
¾
VDD-
1.4V
V
tPD
Comparator Response Time
¾ With 10mV overdrive
¾
¾
2
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
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