HT82K68E-28 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT82K68E-28 Datasheet PDF : 39 Pages
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HT82K68E
Symbol
Parameter
Test Conditions
VDD
Conditions
3V
¾
VIL2
Input Low Voltage (RESET)
5V
¾
3V
¾
VIH2
Input High Voltage (RESET)
5V
¾
VLVR
Low Voltage Reset
¾
¾
IOL
I/O Port Sink Current of PA, PB, PC,
PD, PE0~1
5V VOL= 0.5V
IOH1
I/O Port Source Current of PA, PB,
PC2~7 PD, PE0~1
5V VOH= 4.5V
IOH2
I/O Port Source Current of PE2~4
5V VOH= 4.5V
ILED
LED Sink Current (SCR, NUM, CAP) 5V VOL=3.4V
tPOR
Power-on Reset Time
5V R=100kW, C=0.1mF
RPH
Internal Pull-high Resistance of PA,
3V
PB, PC, PD, PE Port
5V
¾
¾
RPH1
Internal Pull-high Resistance of DATA, 3V
CLK
5V
¾
¾
Df/f
Frequency Variation
5V Crystal
Df/f1
Frequency Variation
5V RC
Min. Typ. Max. Unit
0
¾ 0.7 V
0
¾ 1.3 V
2.4 ¾
3
V
4.0 ¾
5
V
¾ 2.4 ¾
V
16 25 ¾ mA
-8 -16 ¾ mA
-2.5 -4 ¾ mA
10 18 24 mA
50 100 150 ms
30 60 90 kW
15 30 45 kW
4
9
15 kW
2
4.7
8
kW
¾
¾
±1
%
¾
¾ ±20 %
A.C. Characteristics
Symbol
Parameter
fSYS1
System Clock (Crystal OSC)
fSYS2
System Clock (RC OSC)
tWDTOSC Watchdog Oscillator Period
tWDT1 Watchdog Time-out Period (RC)
tWDT2
tRES
Watchdog Time-out Period
(System Clock)
External Reset Low Pulse Width
tSST
System Start-up Timer Period
tINT
Interrupt Pulse Width
Note: tSYS= 1/fSYS
Ta=25°C
Test Conditions
VDD
Conditions
3V
¾
Min. Typ. Max. Unit
¾
6
¾ MHz
5V
¾
3V OSC resistor 40kW
¾
6
¾ MHz
4.8
6
7.2 MHz
5V OSC resistor 40kW
4.8
6
7.2 MHz
3V
¾
45 90 180 ms
5V
¾
35
3V
12
Without WDT prescaler
5V
9
78 130 ms
23 45 ms
19 35 ms
¾ Without WDT prescaler ¾ 1024 ¾ tSYS
¾
¾
¾
Power-up or
wake-up from HALT
¾
¾
1
¾
¾
ms
¾ 1024 ¾ tSYS
1
¾
¾
ms
Rev. 2.00
5
July 10, 2007
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