20
XVM-H6
U503 MB90097
U1, 601 74HC4053D
4
5
6
10
COMMAND
INPUT
MEMORY
CONTROL
COMMAND
REGISTER
TEST
CONTROL
CLOCK
CONTROL
HORIZONTAL
CONTROL
VERTICAL
CONTROL
SYNC
INPUT
1
2
3
7
8
9
RAM
WRITING
CONTROL
ADDRESS
CHANGEOVER
SWITCH
VRAM
CG-ROM
CHARACTER
OUTPUT
12
13
14
15
16
11
17
18
19
20
BLKC
TESTO
BLKB
VC3
BLKA
VC2
VC1
VC0
VSYNC
HSYNC
SCLK
CS
SIN
RESET
VDD
SDR
XD
EXD
TEST
GND
1
2
DECODER
LOGIC
LEVEL
CONVERSION
3
4
5
7
8
6
DECODER
LOGIC
LEVEL
CONVERSION
DECODER
LOGIC
LEVEL
CONVERSION
14
13
12
11
10
9
15
16 VCC
2Y1
2Y0
3Y1
3Z
3Y0
E
VEE
GND
2Z
1Z
1Y1
1Y0
S2
S3
S1