HT48C70-1 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT48C70-1 Datasheet PDF : 39 Pages
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HT48R70A-1/HT48C70-1
Symbol
Parameter
Test Conditions
VDD
Conditions
Min. Typ. Max. Unit
3V
¾
¾
5
mA
ISTB3 Standby Current (WDT Disabled, RTC On)
No load, system HALT
5V
¾
¾
10
mA
VIL1
Input Low Voltage for I/O Ports
¾
¾
0
¾ 0.3VDD V
VIH1
Input High Voltage for I/O Ports
¾
¾
0.7VDD ¾
VDD
V
VIL2
Input Low Voltage (RES)
¾
¾
0
¾ 0.4VDD V
VIH2
Input High Voltage (RES)
¾
¾
0.9VDD ¾
VDD
V
VLVR Low Voltage Reset
¾
enabled
2.7 3.0 3.3
V
IOL
I/O Port Sink Current
3V VOL=0.1VDD
5V VOL=0.1VDD
4
8
¾ mA
10
20
¾ mA
IOH
I/O Port Source Current
3V VOH=0.9VDD
5V VOH=0.9VDD
-2
-4
¾ mA
-5 -10 ¾ mA
RPH
Pull-high Resistance
3V
¾
5V
20
60 100 kW
10
30
50
kW
A.C. Characteristics
Ta=25°C
Symbol
Parameter
Test Conditions
VDD
Conditions
Min.
¾ 2.2V~5.5V
400
fSYS1 System Clock (Crystal OSC)
¾ 3.3V~5.5V
400
fSYS2 System Clock (RC OSC)
¾ 2.2V~5.5V
400
¾ 3.3V~5.5V
400
3.2MHz
1800
1.6MHz
900
fSYS3 System Clock (Internal RC OSC)
5V
800kHz
450
400kHz
225
¾ 2.2V~5.5V
0
fTIMER Timer I/P Frequency (TMR)
¾ 3.3V~5.5V
0
tWDTOSC Watchdog Oscillator Period
3V
¾
45
5V
¾
32
tWDT1
Watchdog Time-out Period (WDT OSC)
3V
11
Without WDT prescaler
5V
8
tWDT2
tWDT3
tRES
tSST
tINT
Watchdog Time-out Period (System Clock) ¾ Without WDT prescaler ¾
Watchdog Time-out Period (RTC OSC) ¾ Without WDT prescaler ¾
External Reset Low Pulse Width
¾
¾
1
System Start-up Timer Period
¾ Wake-up from HALT
¾
Interrupt Pulse Width
¾
¾
1
Typ.
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
90
65
23
17
1024
7.812
¾
1024
¾
Max.
4000
8000
4000
8000
5400
2700
1350
675
4000
8000
180
130
46
33
¾
¾
¾
¾
¾
Unit
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
ms
ms
ms
ms
tSYS
ms
ms
tSYS
ms
Rev. 2.10
5
August 7, 2007
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