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HT45R34 Arkusz danych(PDF) 4 Page - Holtek Semiconductor Inc

Numer części HT45R34
Szczegółowy opis  C/R to F Type 8-Bit OTP MCU
PDF  41 Pages
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Producent  HOLTEK [Holtek Semiconductor Inc]
Strona internetowa  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45R34 Arkusz danych(HTML) 4 Page - Holtek Semiconductor Inc

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Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
ISTB2
Standby Current (WDT Disabled)
3V
No load, system HALT
¾¾
1
mA
5V
¾¾
2
mA
VIL1
Input Low Voltage for I/O Ports,
TMR, INT0 and INT1
¾¾
0
¾
0.3VDD
V
VIH1
Input High Voltage for I/O Ports,
TMR, INT0 and INT1
¾¾
0.7VDD
¾
VDD
V
VIL2
Input Low Voltage (RES)
¾¾
0
¾
0.4VDD
V
VIH2
Input High Voltage (RES)
¾¾
0.9VDD
¾
VDD
V
VLVR
Low Voltage Reset
¾ LVRenabled
2.7
3.0
3.3
V
IOL
PA, RREF and CREF Sink Current
3V
VOL=0.1VDD
48
¾
mA
5V
10
20
¾
mA
IOH
PA, RREF and CREF Source Current
3V
VOH=0.9VDD
-2
-4
¾
mA
5V
-5
-10
¾
mA
RPH
Pull-high Resistance
3V
¾
20
60
100
k
W
5V
¾
10
30
50
k
W
A.C. Characteristics
Ta=25
°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
fSYS
System Clock (Crystal OSC, RC OSC)
¾ 2.2V~5.5V
400
¾
4000
kHz
¾ 3.3V~5.5V
400
¾
8000
kHz
fTIMER
Timer I/P Frequency
¾ 2.2V~5.5V
0
¾
4000
kHz
¾ 3.3V~5.5V
0
¾
8000
kHz
tWDTOSC Watchdog Oscillator Period
3V
¾
45
90
180
ms
5V
¾
32
65
130
ms
tWDT1
Watchdog Time-out Period
(WDT RC OSC)
3V
Without WDT prescaler
11
23
46
ms
5V
8
17
33
ms
tWDT2
Watchdog Time-out Period
(System Clock/4)
¾ Without WDT prescaler
¾
1024
¾
tSYS
tRES
External Reset Low Pulse Width
¾¾
1
¾¾
ms
tSST
System Start-up Timer Period
¾ Wake-up from HALT
¾
1024
¾
tSYS
tINT
Interrupt Pulse Width
¾¾
1
¾¾
ms
tLVR
Low Voltage Reset Time
¾¾
0.25
1
2
ms
Note: *tSYS=1/fSYS
HT45R34
Rev. 1.20
4
October 15, 2007



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