Appendix A Magic-
4. Pin Description
Pin No.
Pin
K0
Funcrion
Remark
1
2
Key Input No. 0 pin
K1
Key Input No. 1 pin
3
K2
Key Input No. 2 pin
4
K3
Key Input No. 3 pin
5
D0
Key Scan Signal No. 0 pin
Key Scan Signal No. 1 pin
Key Scan Signal No. 2 pin
Key Scan Signal No. 3 pin
Custom code Low input pin
Custom code High input pin
Out of Transmission pin
6
D1
7
D2
8
D3
9
D4
10
11
D5
REMOUT
Connect Ceramic Resonator between
OSC1 & OSC2
12
13
OSC2
OSC1
Connect Ceramic Resonator between
OSC1 & OSC2
14
15
16
17
18
19
20
VDD
RESET
GND
R0
Connect 3V power source
Reset by input of
L
Reference voltage for all inputs & outputs 0V
Key Input No. 4 pin
R1
Key Input No. 5 pin
R2
Key Input No. 6 pin
R3
Key Input No. 7 pin
A - 6
HYNIX [ HYNIX SEMICONDUCTOR ]
