HT49R30A-1 Ver la hoja de datos (PDF) - Holtek Semiconductor
Número de pieza
componentes Descripción
Fabricante
HT49R30A-1 Datasheet PDF : 43 Pages
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HT49R30A-1/HT49C30-1/HT49C30L
Symbol
Parameter
Test Conditions
VDD
Conditions
1.5V
RPH
Pull-high Resistance of I/O
Ports and INT0, INT1
3V
¾
5V
VLVR
Low Voltage Reset Voltage
¾
¾
VLVD Low Voltage Detector Voltage ¾
Note: tSYS=1/fSYS
²*fS² please refer to the clock option of WDT
Min. Typ. Max. Unit
75 150 300 kW
40 60 80 kW
10 30 50 kW
2.7 3.2 3.6 V
3.0 3.3 3.6 V
A.C. Characteristics
Ta=25°C
Symbol
Parameter
fSYS1 System Clock (Crystal OSC)
VDD
1.5V
3V
5V
Test Conditions
Conditions
¾
Min. Typ. Max. Unit
400 ¾ 500 kHz
400
4000 kHz
400 ¾ 8000 kHz
1.5V
fSYS2 System Clock (RC OSC)
3V
¾
5V
fSYS3
System Clock
(32768Hz Crystal OSC)
¾
¾
fRTCOSC RTC Frequency
¾
¾
1.5V
fTIMER Timer I/P Frequency
3V
¾
5V
400 ¾ 500 kHz
400 ¾ 4000 kHz
400 ¾ 8000 kHz
¾ 32768 ¾ Hz
¾ 32768 ¾ Hz
0
¾ 500 kHz
0
¾ 4000 kHz
0
¾ 8000 kHz
1.5V
tWDTOSC Watchdog Oscillator
3V
¾
5V
35 70 140 ms
45 90 180 ms
35 65 130 ms
For HT49C30L
10 ¾ ¾ ms
tRES
External Reset Low Pulse Width ¾
For HT49R30A-1/HT49C30-1 1
¾ ¾ ms
tSST
System Start-up Timer Period
¾ Wake-up from HALT
1.5V
tOPD
Option Load Time During Reset 3V
¾
5V
¾ 1024 ¾ tSYS
35 70 140 ms
45 90 180 ms
35 70 140 ms
tINT
Interrupt Pulse Width
For HT49C30L
10 ¾ ¾ ms
¾
For HT49R30A-1/HT49C30-1 1
¾ ¾ ms
Note: tSYS=1/fSYS
Rev. 1.10
7
September 25, 2002
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