參數(shù)資料
型號(hào): W78C52C
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(yè)數(shù): 7/16頁(yè)
文件大?。?/td> 239K
代理商: W78C52C
W78C52C
Publication Release Date: October 1997
- 7 -
Revision A3
DC Characteristics, continued
PARAMETER
SYMBOL
TEST CONDITIONS
SPECIFICATION
UNIT
MIN.
MAX.
Output Low Voltage
P1, P2, P3
V
OL1
V
DD
= 4.5V
I
OL1
= +2 mA
V
DD
= 4.5V
I
OL2
= +4 mA
-
0.45
V
Output Low Voltage
ALE,
PSEN
, P0
(*3)
V
OL2
-
0.45
V
Output High Voltage
P1, P2, P3
V
OH1
V
DD
= 4.5V
I
OH1
= -100
μ
A
V
DD
= 4.5V
I
OH2
= -400
μ
A
2.4
-
V
Output High Voltage
ALE,
PSEN
, P0
(*3)
V
OH2
2.4
-
V
Input Low Voltage
(Except RST)
V
IL1
V
DD
= 4.5V
0
0.8
V
Input Low Voltage
RST
(*4)
V
IL2
V
DD
= 4.5V
0
0.8
V
Input Low Voltage
XTAL1
(*4)
V
IL3
V
DD
= 5.0V
0
0.8
V
Input High Voltage
(Except RST)
V
IH1
V
DD
= 5.5V
2.4
V
DD
+0.2
V
Input High Voltage
RST
(*4)
V
IH2
V
DD
= 5.5V
3.5
V
DD
+0.2
V
Input High Voltage
XTAL1
(*4)
V
IH3
V
DD
= 5.0V
3.5
V
DD
+0.2
V
Notes:
1. Pins of 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 mode.
4. XTAL1 is a CMOS input and RST is a Schmitt trigger input.
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