MSC7112-01 OKI [OKI electronic componets], MSC7112-01 Datasheet - Page 3

• Manufacturer Part Number: MSC7112-01
• Description: 12-Segment x 16-Digit or 16-Segment x12-Digit Display Controller/Driver
• Manufacturer: OKI [OKI electronic componets]

V
EE
(–20 to –40)
OSCI
OSCO
POR
V
V
DD
SS
DATA IN
(0V)
(+5V)
LOAD
SCLK
LOAD
OSC
bit 0
L
I
18-bit LATCH
b
18-bit S•R
15-17
TIMING
GENERATOR
POR
R
POR
18
3
CONTROL
COMMAND
DECODER
DOWN COUNTER
D•C•R
COAD
R
bit 18
4
1
POR
TEST
MODE
L
W•A•C COUNT
W•A•C LOAD
D•C•R
D•C•C
D•T•C
b
S
L
0-16
4
b
17
DIGIT TIME COUNTER
0-3
DUTY CYCLE
COUNTER
16W ¥ 17bits
fW
W/R
A
RAM
4 b
0
L
-A
0-3
RAM PC
3
W•A•C
b
0-3
4
ADDRESS SELECTOR
4
D•R LATCH
17
R•A•C COUNT
LOAD
RAM fR
D•R
L
LATCH
L
16
4
O
17
PLA PC1
ADDRESS COMP
4
R•A•C
A
A=B
R
b
A=B
A=B
0-4
4
32 ¥ 16bits
B
(ROM)
PLA
4
L•R LATCH
PC2
5
L•R LOAD
BLANK DUTY
LATCH
DIGIT
LOAD
4
L
BLANK
L
5
16
DECODER
4
PLA fR
LATCH
O
Q
L
12
16
DIGIT DRV
SEG DRV
OE
OE
LED DRV
SEG A
SEG P
LED1
LED5
D1
D12
(b
¥ 16
(b
(0)
¥ 12
(11)
¥ 5
0
15
)
)