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IC
UPD6453GT-610 (NEC)FLAT PACKAGE
C-MOS ON-SCREEN CHARACTER DISPLAY
—TOP VIEW—
H SYNC
1
20
BUSY
V SYNC
CLK
2
19
CS
3
18
B BLK
4
17
G BLK
DATA
PCL
5
16
R BLK
6
V
15
DD
V CBL
CK
7
14
OUT
VB
OSC
8
13
OUT
VG
OSC
9
12
IN
VR
10
GND
11
MP
INPUT
OUTPUT
CLK
: CLOCK
B
CS
: CHIP SELECT
BUSY
CK
DATA
: SERIAL DATA
H SYNC
: HORIZONTAL SYNC
MP
OSC IN
: OSCILLATOR IN
OSC OUT
PCL
: POWER ON CLEAR
V
V SYNC
: VERTICAL SYNC
V
4
DATA
2
CLK
1
BUSY
3
CS
7
CK OUT
OSC IN
9
OSC
CIRCUIT
OSC OUT
L OSC
8
SYNC
COSC IN
COSC OUT
PROTECT
20
CIRCUIT
H SYNC
19
V SYNC
MC74HC4053DTR2 (MOTOROLA)FLAT PACKAGE
C-MOS TRIPLE 2-CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER
—TOP VIEW—
Y1
1
V
16
I/O
DD
Y0
2
15
Y
I/O
I/O
Z1
3
14
X
I/O
I/O
Z
4
13
X1
I/O
I/O
Z0
5
12
X0
I/O
I/O
EN
6
11
A
IN
IN
7
10
B
V
*
IN
EE
8
GND
9
C
IN
V
*
: V
_ V
= +3 V to +12 V
EE
DD
EE
V
< GND
EE
CONTROL INPUTS
SELECT
ON CHANNEL
EN
C
B
A
0
0
0
0
Z0
Y0
X0
0
0
0
1
Z0
Y0
X1
0
0
1
0
Z0
Y1
X0
0
0
1
1
Z0
Y1
X1
0
1
0
0
Z1
Y0
X0
0
1
0
1
Z1
Y0
X1
0
1
1
0
Z1
Y1
X0
1
1
1
0
Z1
Y1
X1
x
x
x
1
OPEN
6-18
4
12
DATA
VR
2
13
VG
14
VB
20
7
H SYNC
CK OUT
19
11
V SYNC
MP
9
15
V CBL
OSC IN
8
OSC OUT
16
R BLK
17
G BLK
5
18
PCL
B BLK
1
BUSY
CS
3
, R
, G
: B, R, G, BLANKING
BLK
BLK
BLK
: BUSY OUT
OUT
: CLOCK
: MASK PULSE
: OSCILLATOR OUT
, V
, V
: R, G, B, CHARACTER DATA
R
G
B
: VIDEO CUT BLANKING
CBL
DATA INPUT
SHIFFT
INSTRUCTION
REGISTER
DECODER
DATA
BUFFER
REGISTER
CAHRA
H
WRITE
SIZE
ADDRESS
ADDRESS
REGISTER
REGISTER
COUNTER
H
H
SIZE
POSITION
ADDRESS
COUNTER
COUNTER
COUNTER
V
ADDRESS
REGISTER
V
V
TIMING
SIZE
POSITION
GENERATOR
COUNTER
COUNTER
12
X0
13
14
X1
X
OPEN
11
A
2
Y0
1
Y1
Y
15
OPEN
10
B
5
Z0
3
4
Z1
Z
OPEN
9
C
EN
V
EE
6
7
0
: LOW LEVEL
1
: HIGH LEVEL
x
: DON'T CARE
CONTROL
SIGNAL
VIDEO RAM
CHARA
COLOR
DATA
DATA
DATA
SELECTOR
8-BIT
3-BIT
H
x
x
288 WORD
288 WORD
CHARACTER
CHARACTER
GENERATOR
GENERATOR
RAM
ROM
V
12 x 18-BIT
12 x 18-BIT
ADDRESS
x
x
COUNTER
16 WORD
240 WORD
BACKGROUND
DISPLAY
BLINK
CONTROL
CONTROL
DATA
DATA
DATA
1-BIT
x
REGISTER
REGISTER
288 WORD
16
17
OUTPUT CONTROL
18
11
12
13
14
15
MP
VR
VG
VB
VCBL
6
V
DD
10
V
SS
R BLK
G BLK
B BLK
BKP-5090
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