HT82K94E(2005) データシートの表示（PDF） - Holtek Semiconductor
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HT82K94E Datasheet PDF : 44 Pages
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HT82K94E/HT82K94A
Symbol
Parameter
Test Conditions
VDD
Conditions
IOH1
I/O Port Source Current for PA1~PA7,
PB, PC, PD
5V
VOH=3.4V
IOH2 I/O Port Source Current for PA0
5V VOH=3.4V
RPH Pull-high Resistance for PA, PB, PC, PD 5V
¾
VLVR Low Voltage Reset
2-battery option
¾
3-battery option
VLVD Low Battery Detecting Voltage
2-battery option
¾
3-battery option
VV33O 3.3V Regulator Output
5V IV33O=-5mA
Min. Typ. Max. Unit
-2
-4
-8
mA
-12 -18 -24 mA
25
50
80
kW
2.1 2.2 2.3
V
2.3 2.4 2.5
2.3 2.4 2.5
V
2.5 2.6 2.7
3.0 3.3 3.6
V
A.C. Characteristics
Symbol
Parameter
Test Conditions
VDD
Conditions
Min.
fSYS System Clock (Crystal OSC)
5V
¾
6
fTIMER Timer I/P Frequency (TMR)
5V
¾
0
tWDTOSC Watchdog Oscillator
5V
¾
15
tWDT1 Watchdog Time-out Period (WDT OSC) 5V Without WDT prescaler 4
tWDT2
Watchdog Time-out Period
(System Clock)
¾ Without WDT prescaler ¾
tRES External Reset Low Pulse Width
¾
¾
1
tSST System Start-up Timer Period
Wake-up from HALT
¾
¾ Power-up, Watchdog
Time-out from normal
¾
tINT
Interrupt Pulse Width
¾
¾
1
Typ.
¾
¾
31
8
1024
¾
1024
1024
¾
Ta=25°C
Max. Unit
12 MHz
12 MHz
70
ms
16
ms
¾
tSYS
¾
ms
¾
tSYS
¾ tWDTOSC
¾
ms
Rev. 1.00
5
November 22, 2005
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