GMS30004 Datasheet, PDF (141/158 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

3. Pin Description
ë Appendix E Magic- a
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin
RESET
GND
R0
R1
R2
R3
K0
K1
K2
K3
D0
D8
D9
D1
D2
D3
D4
D5
D6
D7
REMOUT
OSC2
OSC1
V_DD
Funcrion
Reset by input of ÌLÌ
Reference voltage for all inputs & outputs 0V
Key Input No. 4 pin
Key Input No. 5 pin
Key Input No. 6 pin
Key Input No. 7 pin
Key Input No. 0 pin
Key Input No. 1 pin
Key Input No. 2 pin
Key Input No. 3 pin
Key Scan Signal No. 0 pin
Key Scan Signal No. 1 pin
Key Scan Signal No. 2 pin
Key Scan Signal No. 3 pin
Key Scan Signal No. 4 pin
Key Scan Signal No. 5 pin
Key Scan Signal No. 6 pin
Key Scan Signal No. 7 pin
Key Scan Signal No. 8 pin
Key Scan Signal No. 9 pin
Out of Transmission pin
Connect Resonator between OSC1 & OSC2
Connect Resonator between OSC1 & OSC2
Connect 3V power source
Remark
E-5