AL-2020/2035/2040/2050/2060 CIRCUIT DIAGRAM 14 - 38
#MCU_I
N
T
#
M
C
U
_nOE
#MCU_nC
S
#PB_A5
#PB_A0
#PB_A1
#RESET-
#PB_A2
#PB_nWE
#PB_A6
#PB_A3
#PB_nOE
#MDM_I
R
Q
#PB_nAE0
#PB_A7
#PB_A4
#
P
B
_
nCS1
#PB_A4
#MDM_I
R
Q
#MCU_I
NT
#PB_A2
#PB_
D
0
#PB_
D
2
#MCU_D7
#MCU_D1
IN
2
4
V
IN
3
.3
V
#PB_nAE0
#PB_nOE
#
M
C
U
_nOE
#PB_A0
#PB_
D
4
#PB_
D
6
#MCU_D5
#PB_A6
#MCU_D3
IN
5
V
#RESET-
#PB_nWE
#
P
B
_nCS1
#PB_A1
#PB_A3
#PB_A5
#PB_A7
#
P
B
_D1
#
P
B
_D3
#
P
B
_D5
#
P
B
_D7
#MCU_nC
S
#MCU_D0
#MCU_D2
#MCU_D4
#MCU_D6
#MCU_D2
#MCU_D7
#MCU_D5
#MCU_D4
#MCU_D3
#MCU_D6
#MCU_D0
#MCU_D1
PB_D
2
#PB_
D
3
#PB_
D
5
#PB_
D
2
#PB_
D
4
#PB_
D
1
#PB_
D
6
PB_D
7
PB_D
1
#PB_
D
0
#PB_
D
7
PB_D
0
PB_D
6
PB_D
5
PB_D
4
PB_D
3
PB_A7
PB_A6
PB_A5
PB_A4
PB_A3
PB_A2
PB_A1
PB_A0
M
CU_D7
M
CU_D6
M
CU_D5
M
CU_D4
M
CU_D3
M
CU_D2
M
CU_D1
M
CU_D0
GN
D
GN
D
GN
D
GN
D
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
GN
D
GN
D
IN3.
3
V
IN
5
V
GN
D
+3.3V
+5V
GN
D
GN
D
GN
D
GN
D
+24V
IN
2
4
V
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
MCU_O
E
L
MCU_CEL
MCU
_
IN
T
P
B
_
D[
7:
0]
P
B
_
A
[7
:0
]
PB_WEL
PB_C
S
1
L
MDM_I
R
Q
PB_AE0L
RESETL
PB_OEL
M
C
U
_
D
[7:
0]
1
40
TP2
9
5
C63
0
.1uF
C114
33pF
TP
9
2
C12
9
0.
1
u
F
C
9
1
0.
1
u
F
C146
33pF
TP210
+
C9
0
A47u/2
5V
R181
22
R186
22
C67
0.
1
u
F
FB7
MNR04 3
3
1
2
3
4
5
6
7
8
R151
0R
TP288
TP3.3V
L
C
3
S
-Y
(N
.M
.)
FL25
ZJSR5101(
2
2
0
0
0
p
)
R154
22
R117
22
C74
0
.1uF
C125
10p/50V
(N
.M
.)
C126
10p/50V
(N
.M
.)
C46
0.
1
u
F
C128
10p/50V
(N
.M
.)
R14
9
100
C127
10p/50V
(N
.M
.)
FB6
MNR04 1
0
0
1
2
3
4
5
6
7
8
TP2
99
R
9
6
22
C157
10p/50V
(N
.M
.)
C162
0.
1
u
F
C110
0.
1
u
F
C158
10p/50V
(N
.M
.)
TP54
TP286
TP344
R73
22
C160
10p/50V
(N
.M
.)
TP200
R115
22
R152
22
R147
22
R187
22
R21
22
TP283
TP347
C25
0.
1
u
F
C78
0.
1
u
F
TP
9
4
R56
22
TP34
9
C43
0.
1
u
F
R148
22
R113
22
TP284
TP346
R105
22
TP55
C37
0.
1
u
F
C130
0.
1
u
F
C
9
5
0.
1
u
F
R51
22
TP1
9
7
R178
22
C8
8
1000p(N
.M
.)
R118
22
R55
22
R3
9
22
FB
9
MNR04 3
3
1
2
3
4
5
6
7
8
TP
9
1
TP335
C58
0.
1
u
F
R185
22
TP5V
LC3S-
Y
(N
.M
.)
R11
9
22
TP2
9
8
R
9
3
22
R153
22
R23
22
R116
22
TP33
9
R22
22
C41
0
.1uF
C26
0
.1uF
TP287
TP285
TP2
9
7
TP348
R
9
4
22
C141
0.
1
u
F
C
9
7
0.
1
u
F
R50
22
TP120
R65
22
TP201
C111
0.
1
u
F
C86
0.
1
u
F
C27
0.
1
u
F
TP24V
LC3S-
Y
(N
.M
.)
TP341
FB3
MNR04 3
3
1
2
3
4
5
6
7
8
R112
0
R
C66
0.
1
u
F
TP343
C45
0.
1
u
F
TP337
TP52
TP1
9
6
C
9
0.
1
u
F
R
9
22
+
C9
4
A47u/2
5V
C155
33pF
C149
33pF
C150
33pF
C156
33pF
FB2003
ACH
3
2
(N
.M
.)
C124
10p/50V
(N
.M
.)
C152
33pF
TP84
TP282
C153
33pF
TP271
TP28
9
TP2
9
3
C154
33pF
C151
33pF
TP1
FB10
MNR04 1
0
0
1
2
3
4
5
6
7
8
R150
0R
TP345
FB2004
ACH
3
2
(N
.M
.)
C9
3
F0.1u/16V
TP2
9
1
TP2
9
6
FB2002
ACH
3
2
(N
.M
.)
FB4
MNR04 3
3
1
2
3
4
5
6
7
8
TP100
FL24
Z
J
S
R
5
1
0
1
(22000p)
TP202
TP56
C116
100pF
C118
33pF
C117
33pF
C8
5
10p/5
0V
C121
10p/5
0V
BR20
M
N
R04 0R
1
2
3
4
5
6
7
8
C120
33pF
C122
10p/5
0V
C8
7
1000p
F
C123
10p/5
0V
C8
9
F0.1u/16V
TP326
TP53
TP277
TP1
9
8
TP342
TP2
9
2
TP340
FL23
Z
J
S
R
5
1
0
1
(22000p)
TP74
+
C
9
2
A47u
/3
5
V
TP350
TP35
C131
0
.1uF
C
9
6
0
.1uF
C147
33pF
R27
22
C112
33pF
FB8
MNR04 3
3
1
2
3
4
5
6
7
8
C10
0.
1
u
F
C113
33pF
D7
1SS355(
N.
M
.)
TP1
99
C15
9
0.
1
u
F
C100
0.
1
u
F
FB5
MNR04 4
7
1
2
3
4
5
6
7
8
C115
33pF
TP
9
3
C148
33pF
CN2001
B40B-
PNDZS
-1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
9
20
22
24
26
34
28
30
32
36
40
38
31
3
9
37
35
33
27
2
9
25
23
21
TP272
C161
0
.1uF
C108
0
.1uF
C119
33pF
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
FAX MAIN PWB (MCU I/F) (AL-2060)
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Summary of Contents for AL-2020
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