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GMS30004 Datasheet(PDF) 152 Page - Hynix Semiconductor

Part # GMS30004
Description  4-BIT SINGLE CHIP MICROCOMPUTERS
PDF  158 Pages
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Manufacturer  HYNIX [Hynix Semiconductor]
Direct Link  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

GMS30004 Datasheet(HTML) 152 Page - Hynix Semiconductor

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G - 2
1. Function
1) Stand-by
Oscillation is stop
Output of D0~D5, D8, D9 is
ÌLÌ, Output of D6~D7 is ÌHÌ
2) Condition of stand-by mode
After reset
When scan strobe output is over, there is not any key input.
3) Release of stand-by mode
One of the key scan input (K0~K3, R0~R3) is change to
ÌLÌ level
2. Key Input
1) Key-data mapping table
Output pin
Input pin
K0
K1
K2
K3
R0
R1
R2
R3
1
2
3
4
5
6
7
8
D0
9
10
11
12
13
14
15
16
D8
17
18
19
20
21
22
23
24
D9
25
26
27
28
29
30
31
32
D1
2) Double action key
Combi of Key
Key Data
B5h
K21 + K22
B6h
K21 + K23
B7h
K21 + K24
33
34
35
36
37
38
39
40
D2
41
42
43
44
45
46
47
48
D3
49
50
51
52
53
54
55
56
D4
57
58
59
60
61
62
63
64
D5
Appendix G Magic-
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