b. Direct Connection to 8-Bit Microprocessor
c. Interface with MC6805 Microprocessor
d. Interface with Z-80 Microprocessor
VMA
φ
2
A
15
A
0
R/W
D
0
- D
7
MC6800
8
LCD UNIT
E
RS
R/W
DB
0
- DB
7
LCD27-29
C
2
C
0
C
1
A
0
- A
7
MC6805
8
LCD UNIT
DB
0
- DB
7
E
RS
R/W
LCD27-30
D
0
- D
7
A
0
A
4
A
5
A
6
A
7
MI
Z80
IORQ
RD
DB
0
- DB
7
RS
E
LCD
UNIT
R/W
A
B
C
G
2
A
G
G
2
B
Y
1
LS138
1 K
Ω
200
PF
LCD27-31
Dot-Matrix LCD Units
22
Display Unit User’s Manual
