HT48R01 Ver la hoja de datos (PDF) - Holtek Semiconductor
Número de pieza
componentes Descripción
Fabricante
HT48R01 Datasheet PDF : 38 Pages
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HT48R01/HT48R02/HT48R03
A.C. Characteristics
Ta=25°C
Symbol
Parameter
Test Conditions
VDD
Conditions
fSYS1
System Clock
(Crystal OSC, RC OSC)
¾ 2.2V~5.5V
¾ 3.3V~5.5V
¾ 4.5V~5.5V
4.5V~
5.5V
12MHz, Ta=25°C
fSYS2
System Clock (Internal RC OSC)
(±10%)
3.3V~
5.5V
8MHz, Ta=25°C
2.2V~
5.5V
4MHz, Ta=25°C
fSYS3
System Clock (32768 Crystal)
¾
¾
¾ 2.2V~5.5V
fTIMER
Timer I/P Frequency (TMR)
¾ 3.3V~5.5V
¾ 4.5V~5.5V
Min. Typ. Max. Unit
400
¾ 4000 kHz
400
¾ 8000 kHz
400
¾ 12000 kHz
10800 12000 13200 kHz
7200 8000 8800 kHz
3600 4000 4400 kHz
¾ 32768 ¾
Hz
0
¾ 4000 kHz
0
¾ 8000 kHz
0
¾ 12000 kHz
3V
¾
tWDTOSC Watchdog Oscillator Period
5V
¾
45
90
180
ms
32
65
130
ms
tRES
External Reset Low Pulse Width ¾
¾
1
¾
¾
ms
tSST
System Start-up Timer Period
¾ Wake-up from HALT ¾ 1024 ¾
tSYS
tINT
Interrupt Pulse Width
¾
¾
1
¾
¾
ms
tLVR
Low Voltage Width to Reset
¾
¾
0.25
1
2
ms
VPOR
VDD Start Voltage to Ensure
Power-on Reset
¾
¾
¾
¾
100 mV
RPOR
VDD Rise Rate to Ensure
Power-on Reset
¾
¾
0.035 ¾
¾ V/ms
Note: tSYS=1/fSYS1, 1/fSYS2 or 1/fSYS3
Rev. 1.00
5
December 20, 2006
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