參數(shù)資料
型號(hào)： W78E56B
廠商： WINBOND ELECTRONICS CORP
英文描述： 8-BIT Microcontroller(8位的微控制器)
中文描述： 8位微控制器（8位的微控制器）
文件頁數(shù)： 13/26頁
文件大?。?/td> 224K
代理商： W78E56B
W78E516B
Publication Release Date: February 2000
- 13 -
Revision A3
Oscillator Control
W78E516B/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
70
+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.
D.C. ELECTRICAL CHARACTERISTICS
(V
DD
-V
SS
= 5V
±
10%, T
A
= 25
°
C, Fosc = 20 MHz, unless otherwise specified.)
PARAMETER
SYM.
V
DD
I
DD
SPECIFICATION
MIN.
MAX.
4.5
-
TEST CONDITIONS
RST = 1, P0 = V
DD
No load
V
DD
= 5.5V
Idle mode
V
DD
= 5.5V
Power-down mode
V
DD
= 5.5V
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
UNIT
V
mA
Operating Voltage
Operating Current
5.5
20
Idle Current
I
IDLE
-
6
mA
Power Down Current
I
PWDN
-
50
μ
A
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
I
IN1
-50
+10
μ
A
I
IN2
-10
+300
μ
A
I
LK
-10
+10
μ
A
I
TL
[*4]
-500
-
μ
A
V
DD
= 5.5V
V
IN
= 2.0V
V
DD
= 4.5V
V
IL1
0
0.8
V
相關(guān)PDF資料
PDF描述
W78E516BP-24 8-BIT MICROCONTROLLER
W78E516BP-40 8-BIT MICROCONTROLLER
W78E516 8-BIT MICROCONTROLLER
W78E516B 8-BIT MICROCONTROLLER
W78E516B-24 8-BIT MICROCONTROLLER
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