參數(shù)資料
型號: W78E54C
廠商: WINBOND ELECTRONICS CORP
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): 14/24頁
文件大?。?/td> 198K
代理商: W78E54C
W78E54C/W78E054C
- 14 -
DC Characteristics, continued
PECIFICATION
PARAMETER
SYMBOL
TEST CONDITIONS
MIN.
MAX.
UNIT
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
V
OH2
V
DD
= 4.5V
I
OH2
= -400
μ
A
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
P0, ALE,
PSEN
(*3)
I
SK2
V
DD
= 4.5V
Vs = 0.45V
8
16
mA
Source Current
P1, P2, P3, P4
Source Current
I
SR1
V
DD
= 4.5V
Vs
= 2.4V
-100
-250
uA
P0, ALE,
PSEN
(*3)
I
SR2
V
DD
= 4.5V
Vs
= 2.4V
-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 VIN 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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