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參數(shù)資料
| 型號(hào)： | W87LE58 |
| 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)： | 18/31頁 |
| 文件大小： | 426K |
| 代理商： | W87LE58 |
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Preliminary W78LE58
- 18 -
Oscillator Control
W78LE58/E516 allow user to diminish the gain of on-chip oscillator amplifier by using programmer to
set the bit B7 of security register. Once B7 is set to 0, a half of gain will be decreased. Care must be
taken if user attempts to diminish the gain of oscillator amplifier, reducing a half of gain may
improperly affect the external crystal operation at high frequency above 24 MHz. The value of R and
C1, C2 may need some adjustment while running at lower gain.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
V
DD
V
SS
V
IN
T
A
T
ST
MIN.
-0.3
V
SS
-0.3
0
-55
MAX.
+6.0
V
DD
+0.3
60
+150
UNIT
V
V
°
C
°
C
DC Power Supply
Input Voltage
Operating Temperature
Storage Temperature
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.
DC CHARACTERISTICS
V
SS
= 0V, T
A
= 25
°
C, unless otherwise specified.
PARAMETER
Operating Voltage
Operating Current
Idle Current
Power Down Current
Input Current
P1, P2, P3, P4
Input Current
RST
Input Leakage Current
P0,
EA
Logic 1 to 0 Transition
Current
P1, P2, P3, P4
Input Low Voltage
P0, P1, P2, P3, P4, EA
Input Low Voltage
RST[*1]
SYM.
V
DD
V
DD
I
DD
I
IDLE
I
PWDN
I
IN1
SPECIFICATION
MIN.
2.4
3.3
-
-
-
-
-
-
-50
UNIT
V
V
mA
mA
mA
mA
μ
A
μ
A
μ
A
TEST CONDITIONS
Without ISP
With ISP
No load V
DD
= 5.5V
No load V
DD
= 2.4V
V
DD
= 5.5V, Fosc = 20 MHz
V
DD
= 2.4V, Fosc = 12 MHz
V
DD
= 5.5V, Fosc = 20 MHz
V
DD
= 2.4V, Fosc = 12 MHz
V
DD
= 5.5V
V
IN
= 0V or V
DD
V
DD
= 5.5V
0 < V
IN
< V
DD
V
DD
= 5.5V
0V < V
IN
< V
DD
V
DD
= 5.5V
V
IN
= 2.0V
MAX.
5.5
5.5
20
3
6
1.5
50
20
+10
I
IN2
-10
+300
μ
A
I
LK
-10
+10
μ
A
I
TL
[*4]
-500
-
μ
A
V
IL1
0
0
0.8
0.5
V
V
V
DD
= 4.5V
V
DD
= 2.4V
V
IL2
0
0
0.8
0.3
V
V
V
DD
= 4.5V
V
DD
= 2.4V
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