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參數資料
型號: W81E381D
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: FULL SPEED USB INTEGRATED MICROCONTROLLER
中文描述: FLASH, 12 MHz, MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48
文件頁數: 9/63頁
文件大?。?/td> 695K
代理商: W81E381D
W81E381D/W81E381AD
Publication Release Date: January 2002
Revision 0.52
- 9 -
3.1.1 48-PIN LQFP package DESCRIPTION, continued
SYMBOL
TYPE PIN NO
DESCRIPTIONS
P3.0
P3.1
I/O H
34,35
PORT 3: Function is the same as that of the standard 8052.
P3.4
P3.7
I/O H
42,43,
44,45
PORT 3: Function is the same as that of the standard 8052.
UC-XI
I
24
uC Crystal input.
UC-XO
O
23
uC Crystal output.
P
P
o
o
w
w
e
e
r
r
P
P
i
i
n
n
s
s
V
SS
PWR
19,38
GROUND: ground potential.
V
DD
PWR
20,39
POWER SUPPLY: Supply voltage for operation.
S
S
e
e
r
r
i
i
a
a
l
l
I
I
n
n
t
t
e
e
r
r
f
f
a
a
c
c
e
e
SDA
I/O
6
Data input/output of serial interface
SCL
I
7
Clock input of serial interface
S
S
m
a
a
r
r
t
t
C
C
a
a
r
r
d
d
R
R
e
e
a
a
d
d
e
e
r
r
P
P
i
i
n
n
s
s
SCPWR
O
33
Smart card power supplier enable pin
SCIO
I/O
30
Smart card serial data input/output pin or GPIO pin
SCCLK
O (I/O) 31
Smart card clock output (default 3M Hz) or GPIO pin
SCRST
O
32
Smart card reset signal
SCPRSNT
I
40
Smart card existed indicator. Schmitt-trigger input
*Note: TYPE I: input, O: output, I/O: bi-directional, H: pull-high, L: pull-low, D: open drain, PWR: Power pins, X: Floating
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