Sharp AR-NB3, Options Manual, Page: 22 / 44

AR-NB3 CIRCUIT DIAGRAM
7 – 6
A B C D
8765
4
3
1
2
3
4
5
6
7
8
D C B A
A B C D
8765
4
3
1 1
2 2
3
4
5
6
7
8
D C B A
6/16
ADDRESS_BUFFER/DATA_BUFFER
<RS232C CONNECTOR> <TMPR4927TB SIO_Ch1>
MEMD
1
4
MEMD
2
3
M
E
MD6
MEMD
1
7
MEMD
1
1
M
E
MD9
MEMD
1
6
MEMD
2
5
M
E
MD0
MEMD
2
6
MEMD
3
0
M
E
MD3
M
E
MD5
M
E
MD1
MEMD
1
2
MEMD
1
8
M
E
MD8
MEMD
2
0
MEMD
2
2
MEMD
2
4
MEMD
1
0
M
E
MD7
MEMD
1
3
MEMD
1
5
MEMD
2
9
M
E
MD4
MEMD
2
8
MEMD
1
9
MEMD
3
1
M
E
MD2
MEMD
2
1
MEMD
2
7
M
E
MA0
M
E
MA1
M
E
MA2
M
E
MA3
M
E
MA4
M
E
MA5
M
E
MA6
M
E
MA7
M
E
MA8
M
E
MA9
MEMA1
0
MEMA1
1
MEMA1
2
MEMA1
3
MEMA1
4
MEMA1
5
MEMA1
6
MEMA1
7
MEMA1
8
MEMA1
9
LAB2
0
LAB2
0
LA7 LA9 LA14 LA4 LA3 LA8 LA0 LA10 LA12 LA16 LA13 LA19 LA2 LA18 LA6 LA17 LA5 LA20 LA1 LA15 LA11
LAA5 LAA9
LAA9
LAA7
LAA
5
LAA1
9
LAA3
LAA1
6
LAA8
LAA1
4
LAA
1
LAA1
7
LAA1
0
LAA1
4
LAA0 LAA8 LAA1
5
LAA1
2
LAA1
3
LAA1 LAA1
1
LAA
4
LAA
6
LAA
3
LAA
2
LAA1
3
LAA1
8
LAA1
1
LAA4
LAA1
9
LAA
7
LAA1
2
LAA1
2
LAA1
7
LAA6
LAA1
8
LAA
0
LAA2
LAA1
6
LAA1
0
LAA1
5
LAA[19:0]
LDD7 LDD2 LDD11
LDD22 LDD24 LDD21 LDD29
LDD5 LDD12
LDD31 LDD16 LDD26 LDD27
LDD[31:0]
LDD6
LDD18 LDD20
LDD1 LDD4
LDD17
LDD8
LDD23 LDD28
LDD10
LDD25
LDD14
LDD30
LDD9 LDD3 LDD13
LDD19
LDD15 LDD0
LDD31 LDD30 LDD28 LDD29 LDD27 LDD25 LDD26 LDD24 LDD22 LDD20 LDD23 LDD21 LDD19 LDD17 LDD18 LDD16 LDD15 LDD13 LDD14 LDD12 LDD11 LDD9 LDD10 LDD8 LDD7 LDD5 LDD6 LDD4 LDD3 LDD1 LDD2 LDD0
LD4 LD21 LD28 LD6 LD10 LD11 LD30 LD0 LD7 LD13 LD17 LD31 LD22 LD26 LD27 LD14 LD2 LD9 LD16 LD18 LD5 LD20 LD24 LD19 LD25 LD15 LD29 LD1 LD3 LD8 LD12 LD23
LD31 LD29 LD30 LD28 LD27 LD25 LD26 LD24 LD23 LD21 LD22 LD20 LD19 LD17 LD18 LD16 LD15 LD13 LD14 LD12 LD11 LD9 LD10 LD8 LD7 LD5 LD6 LD4 LD3 LD1 LD2 LD0
M
E
M
A
[1
9:0]
3,5,16
MEMD[31:0
]
3,5,16
MEMDIR
3,15
ALE
3,15
ROMOE
3,15
FOE
7,15
ROMWE
3,15
FWE
7,15
F
O
NT_OE
7,15
FONT
_
W
E
7,15
RXD1
2,16
TXD
1
2,16
LAB2
0
1
6
LA[20:0]
7
LD[31:0]
7
LDD[31:0]
1
6
LAA[19:0]
1
6
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCC
VCC
VCCIO
IC8 TC74LCX244
F
T
2 4 6 8
11 13 15 17
1
19
18 16 14 12 9 7 5 3 20 10
1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 1G 2G
1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4
VCC GND
R210
3
3
TP466
C65
0.1uF
C67 0.1uF
C66
0.1uF
BR6
2
33
1 2 3 4
5 6 7 8
C69 0.1uF
BR6
3
10K
1 2 3 4
5 6 7 8
IC9 TC74LCX244
F
T
2 4 6 8
11 13 15 17
1
19
18 16 14 12 9 7 5 3 20 10
1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 1G 2G
1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4
VCC
GND
C70 0.1uF
IC10
TC74LCX37
3
F
T
3 4 7 8
13 14 17 18
1
11
2 5 6 9 12 15 16 19 20 10
D0 D1 D2 D3 D4 D5 D6 D7 OE LE
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
VCC GND
C63
0.1uF
TP555
TP470
BR4
3 33
1 2 3 4
5 6 7 8
BR6
5
10K
1 2 3 4
5 6 7 8
IC7 TC74LCX244
F
T
2 4 6 8
11 13 15 17
1
19
18 16 14 12 9 7 5 3 20 10
1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 1G 2G
1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4
VCC
GND
BR5
5
10K
1 2 3 4
5 6 7 8
BR5
3
10K
1 2 3 4
5 6 7 8
BR5
0
33
1 2 3 4
5 6 7 8
BR5
2
33
1 2 3 4
5 6 7 8
BR5
7
10K
1 2 3 4
5 6 7 8
BR5
4
33
1 2 3 4
5 6 7 8
BR4
4 33
1 2 3 4
5 6 7 8
CN6
T4B-
S
Q
1 2 3 4
TXD RXD 5V GND
R201
3
3
BR5
9
10K
1 2 3 4
5 6 7 8
BR5
6
33
1 2 3 4
5 6 7 8
BR4
5 33
1 2 3 4
5 6 7 8
TP465
BR5
8
33
1 2 3 4
5 6 7 8
TP447
BR6
1
10K
1 2 3 4
5 6 7 8
BR4
7 33
1 2 3 4
5 6 7 8
R97
3
3
TP556
BR6
0
33
1 2 3 4
5 6 7 8
R99
3
3
TP
557
TP401
TP558
BR4
6 33
1 2 3 4
5 6 7 8
BR5
1
10K
1 2 3 4
5 6 7 8
TP400
TP559
R98
3
3
TP471
TP560
TP446
IC12
TC74LCX245
F
T
2 3 4 5 1
19
18 17 16 15 14 13 12 11 20 10
9 8 7 6
A1 A2 A3 A4 DIR OE
B1 B2 B3 B4 B5 B6 B7 B8
VCC GND
A8 A7 A6 A5
TP561
IC14
TC74LCX245
F
T
2 3 4 5 1
19
18 17 16 15 14 13 12 11 20 10
9 8 7 6
A1 A2 A3 A4 DIR OE
B1 B2 B3 B4 B5 B6 B7 B8
VCC GND
A8 A7 A6 A5
IC13
TC74LCX245
F
T
2 3 4 5 1
19
18 17 16 15 14 13 12 11 20 10
9 8 7 6
A1 A2 A3 A4 DIR OE
B1 B2 B3 B4 B5 B6 B7 B8
VCC
GND
A8 A7 A6 A5
R
1
00
33
IC29C TC74LCX14
F
T
5
6
IC29D TC74LCX14
F
T
9
8
IC29B TC74LCX14
F
T
3
4
IC29A TC74LCX14
F
T
1
2
R20
2
3
3
C64
0.1uF
R24
6
10K
BR6
4
33
1 2 3 4
5 6 7 8
IC11
TC74LCX245
F
T
2 3 4 5 1
19
18 17 16 15 14 13 12 11 20 10
9 8 7 6
A1 A2 A3 A4 DIR OE
B1 B2 B3 B4 B5 B6 B7 B8
VCC
GND
A8 A7 A6 A5
C68 0.1uF