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Número de pieza
componentes Descripción
Lista de partido
W921E842A
4-BIT MICROCONTROLLER
Winbond
W921E842A Datasheet PDF : 58 Pages
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W921E840A/W921C840
3. Pin Configurations, continued
48-pin QFP
P
3
.
0
/
/
A PPPP
/R
OO E
N 2
2 2
2
V
SS S /
I .
. .
.
D
CC E X X
N
0 3
2 1
0
D
I
OT
T T
C
NC
P3.1/ANI1
P3.2/ANI2
P3.3/ANI3
P4.0
P4.1
P4.2
P4.3/INT0
P5.0/TM1
P5.1/TM2
P5.2/Vref
NC
1
48 47 46 45 44 43 42 41 40 39 38 37
36
2
35
3
34
4
33
5
32
6
W921E844A
31
7
/ W921C844
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
PD.1
PD.0
DTMF
PC.3
PC.2
PC.1
PC.0
BTG
PB.3
PB.2
PB.1
PB.0
N P P P
PV
P
P PP PN
C 5 6 6
6s
6
A AA AC
. . . .s. . ..
.
3 0 1 2 3 0 12
3
////
/
D WWR R
ADCD C
OA L A L
UT KT K
TA A
PIN NAME
NC
P3.1/ANI1
P3.2/ANI2
P3.3/ANI3
QFP 48
1
2
3
4
PIN NAME
PB.0
PB.1
PB.2
PB.3
QFP 48
25
26
27
28
Publication Release Date: July 1999
-7-
Revision A3
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