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零件编号
产品描述 (功能)
SM3508 查看數據表(PDF) - Sharp Electronics
零件编号
产品描述 (功能)
生产厂家
SM3508
4-Bit Single-Chip Microcomputer (For Data Bank Use)
Sharp Electronics
SM3508 Datasheet PDF : 3 Pages
1
2
3
SYSTEM COMFIGURATION EXAMPLE
(HIGH END DATA BANK)
Common signal
SM3508
Segment signal
S
1
-S
74
CE
CE
1
-CE
3
H
1
-H
16
S
9
-S
28
Expand
RW
V
4
V
3
V
CC
memory
1 M-byte x 3
DIO
1
-DIO
8
SM3508
V
2
V
1
V
H
S
1
-S
8
S
67
-S
74
KI
1
-KI
7
KI
8
V
CC
TEST CCI CCO RESET CXI
Key matrix
(MAX. 112-key)
V
CC
SW
+
5V
–
RESET
key
EO
2
CXO BZ
V
CC
Infrared signal
for IR communication
V
CC
Buzzer
-2-
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