參數(shù)資料
型號: W78E51C
廠商: WINBOND ELECTRONICS CORP
英文描述: 8 bit micocontroller
中文描述: 8位micocontroller
文件頁數(shù): 13/23頁
文件大?。?/td> 302K
代理商: W78E51C
W78E51C
Publication Release Date: April 20, 2005
- 13 -
Revision A2
DC Characteristics, continued
SPECIFICATION
MIN.
PARAMETER
SYMBOL
TEST
CONDITIONS
MAX.
UNIT
Input Leakage Current
P0,
EA
Output Low Voltage
P1, P2, P3, P4
Output Low Voltage
ALE, PSEN, P0
(*3)
Output High Voltage
P1, P2, P3, P4
Output High Voltage
ALE,
PSEN
, P0
(*3)
Input Low Voltage
(Except RST)
Input Low Voltage
RST
(*4)
Input Low Voltage
XTAL1
(*4)
Input High Voltage
(Except RST)
Sink Current
P1, P2, P3, P4
Input High Voltage
RST
(*4)
Input High Voltage
XTAL1
(*4)
Sink Current
P0, ALE, PSEN
(*3)
Source Current
P1, P2, P3, P4
Source Current
P0, ALE, PSEN
(*3)
I
LK
V
DD
= 5.5V
0V < V
IN
< V
DD
V
DD
= 4.5V
I
OL1
= +2 mA
V
DD
= 4.5V
I
OL2
= +4 mA
V
DD
= 4.5V
I
OH1
= -100
μ
A
V
DD
= 4.5V
I
OH2
= -400
μ
A
-10
+10
μ
A
V
OL1
-
0.45
V
V
OL2
-
0.45
V
V
OH1
2.4
-
V
V
OH2
2.4
-
V
V
IL1
V
DD
= 4.5V
0
0.8
V
V
IL2
V
DD
= 4.5V
0
0.8
V
V
IL3
V
DD
= 4.5V
0
0.8
V
V
IH1
V
DD
= 4.5V
2.4
V
DD
+0.2
V
I
SK1
V
DD
= 4.5V
Vs = 0.45V
4
12
mA
V
IH2
V
DD
= 4.5V
0.67 V
DD
V
DD
+0.2
V
V
IH3
V
DD
= 4.5V
0.67 V
DD
V
DD
+0.2
V
I
SK2
V
DD
= 4.5V
Vs = 0.45V
V
DD
= 4.5V
V
S
= 2.4V
V
DD
= 4.5V
V
s
= 2.4V
8
16
mA
I
SR1
-100
-250
uA
I
SR2
-8
-14
mA
Notes:
*1. Pins P1, P2 and P3 source a transition current when they are being externally driven from 1 to 0. The transition current
reaches its maximum value when V
IN
is approximately 2V.
*2. RST pin has an internal pull-down resistor.
*3. P0, ALE,
PSEN
are in the external access memory mode.
*4. XTAL1 is a CMOS input and RST is a Schmitt trigger input.
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