GMS81004 Datasheet, PDF (97/101 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTERS

Appendix B. PROGRAMMER`S GUIDE
APPENDIX B.
General Circuit Diagram of GMS810series.
VCC
4MHz
OSC
VCC
1 R13
2 R12
3 _R11
4 _R10
5 _VDD
6 _Xout
7 ^Xin
8 ^R00
9 R01
10 R02
11 R03
12 R20
R14 ²⁴
R15 23
R16 22
R17 ²¹
REMOUT ²⁰
RESET ¹⁹
TEST 18
R07 17
R06 16
R05 ₁₅
R04 14
VSS ₁₃
Infrared LED
0.1uF _vcc
TR1
VCC
Normally use the above 100uF
capacitor for prevent power drop
during pulse is transmitted.
If you use the SRAM back-up,
use at least 220uF
Filter for Vcc-GND
noise
DC3V
GND
We recommend to
use ALKALINE battery.
KEY MATRIX
= KEY
B-1 Circuit Diagram
B -1
49 41 33 25 17 9 1 ^R00
50 42 34 ^{26 18 10 2 R01}
51 43 35 27 19 11 3 ^R02
52 44 36 28 20 12 4 ^R03
53 45 37 29 21 13 5 ^R04
54 46 38 30 22 14 6 ^R05
55 47 39 31 23 15 7 ^R06
56 48 40 32 24 16 8 ^R07