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HT827A0 Просмотр технического описания (PDF) - Holtek Semiconductor
Номер в каталоге
Компоненты Описание
производитель
HT827A0
8-Bit Microcontroller with Voice ROM
Holtek Semiconductor
HT827A0 Datasheet PDF : 49 Pages
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HT827A0
A.C. Characteristics
Symbol
Parameter
f
SYS1
System Clock (Crystal OSC)
Test Conditions
V
DD
Conditions
3V
¾
5V
¾
f
SYS2
System Clock (RC OSC)
3V
¾
5V
¾
3V
¾
f
TIMER
Timer I/P Frequency (TMR)
5V
¾
t
WDTOSC
Watchdog Oscillator
5V
t
WDT1
Watchdog Timeout Period (RC) 5V
¾
Without WDT
prescaler
t
WDT2
Watchdog Timeout Period
(System Clock)
5V
Without WDT
prescaler
t
RES
External Reset Low Pulse Width 5V
¾
t
INT
Interrupt Pulse Width
5V
¾
Note: t
SYS
=1/(f
SYS
)
Ta=25
°
C
Min. Typ. Max. Unit
400
¾
4000 kHz
400
¾
4000 kHz
400
¾
4000 kHz
400
¾
4000 kHz
0
¾
4000 kHz
0
¾
4000 kHz
31 78 140
m
s
8
20
36 ms
¾
1024
¾
t
SYS
1
¾
¾
m
s
1
¾
¾
m
s
7
March 15, 2000
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