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HT48R53 Datasheet(PDF) 5 Page - Holtek Semiconductor Inc

Part # HT48R53
Description  I/O Type 8-Bit MCU
PDF  35 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT48R53 Datasheet(HTML) 5 Page - Holtek Semiconductor Inc

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A.C. Characteristics
Ta=25
°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
fSYS
System Clock (RC OSC)
¾ 2.2V~5.5V
400
¾
4000
kHz
¾ 3.3V~5.5V
400
¾
8000
kHz
fTIMER
Timer I/P Frequency
¾ 2.2V~5.5V
0
¾
4000
kHz
¾ 3.3V~5.5V
0
¾
8000
kHz
tWDTOSC Watchdog Oscillator Period
3V
¾
45
90
180
ms
5V
¾
32
65
130
ms
tFSP1
fSP Time-out Period Clock Source
from WDT
3V
With prescaler (fS/4096)
184
369
737
ms
5V
131
266
532
ms
tFSP2
fSP Time-out Period Clock Source
from RTC OSC
3V
With prescaler (fS/4096)
¾
125
¾
ms
5V
¾
125
¾
ms
tRES
External Reset Low Pulse Width
¾¾
1
¾¾
ms
tSST
System Start-up Timer Period
¾
Power-up or wake-up
from HALT
¾
1024
¾
*tSYS
tINT
Interrupt Pulse Width
¾¾
1
¾¾
ms
Note:
*tSYS= 1/fSYS
HT48R52/HT48R53
Rev. 1.20
5
December 6, 2005



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