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參數(shù)資料
型號: HT49R50
廠商: Holtek Semiconductor Inc.
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 7/59頁
文件大小: 339K
代理商: HT49R50
Absolute Maximum Ratings
Supply Voltage........................V
SS
0.3V to 5.5V
Storage Temperature................. 50 C to 125 C
Input Voltage.................V
SS
0.3V to V
DD
+0.3V
Operating Temperature .............. 25 C to 70 C
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maxi-
mum Ratings" may cause substantial damage to the device. Functional operation of this device
at other conditions beyond those listed in the specification is not implied and prolonged expo-
sure to extreme conditions may affect device reliability.
D.C. Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min. Typ.
Max.
Unit
V
DD
Conditions
V
DD
Operating Voltage
3.0
5.2
V
I
DD1
Operating Current
(Crystal OSC)
3V
No load,
f
SYS
=2MHz
0.5
1
mA
5V
1.5
3
mA
I
DD2
Operating Current (RC OSC)
3V
No load,
f
SYS
=2MHz
0.4
0.8
mA
5V
1
2
mA
I
STB1
Standby Current
(*f
S
=T1)
3V
No load, system halt
LCD off at halt
1
A
5V
2
A
I
STB2
Standby Current
(*f
S
=32.768kHz OSC)
3V
No load, system halt
LCD on at halt, C type
10
A
5V
20
A
I
STB3
Standby Current
(*f
S
=WDT RC OSC)
3V
No load, system halt
LCD on at halt, C type
2
5
A
5V
6
10
A
I
STB4
Standby Current
(*f
S
=32.768kHz OSC)
3V
No load, system halt
LCD on at halt
R type, 1/2bias
17
30
A
5V
34
60
A
I
STB5
Standby Current
(*f
S
=32.768kHz OSC)
3V
No load, system halt
LCD on at halt
R type, 1/3bias
13
25
A
5V
28
50
A
I
STB6
Standby Current
(*f
S
=WDT RC OSC)
3V
No load, system halt
LCD on at halt
R type, 1/2bias
14
25
A
5V
26
50
A
I
STB7
Standby Current
(*f
S
=WDT RC OSC)
3V
No load, system halt
LCD on at halt
R type, 1/3bias
10
20
A
5V
19
40
A
V
IL
I/O Port Input Low Voltage
3V
0
0.9
V
5V
0
1.5
V
V
IH
I/O Port Input High Voltage
3V
2.1
3
V
5V
3.5
5
V
HT49R50
7
October 22, 1999
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