MSC7110-01 Datasheet, PDF (3/18 Pages) OKI electronic componets – 12-Segment x 16-Digit or 16-Segment x12-Digit Display Controller/Driver

SCLK
DATA IN
LOAD
OSCI
OSCO
POR
V_DD (+5V)
V_SS (0V)
V_EE (–20 to –40)
I 18-bit S•R
18
LATCH
LATCH
L 18-bit LATCH R POR
bit 0
bit 18
b_0-16
17
RAM
17
LOAD
COMMAND
DECODER
16W ¥ 17bits
(ROM)
17
PLA
16 _Q 16
3
b_15-17
4
1 _TEST
MODE
A₀-A₃
32 ¥ 16bits
L
fW RAM PC RAM fR
PLA PC1 PC2
L
PLA fR
DECODER
CONTROL
W/R
4 b_0-3
ADDRESS SELECTOR
4
LATCH
4
4
12
4 4O
W•A•C LOAD L _{W•A•C}
R•A•C
OSC
TIMING
GENERATOR
R
POR
W•A•C COUNT
4 ^b0-3
R•A•C COUNT
D•R LATCH
R
A=B
ADDRESS COMP
L
DIGIT
LOAD
D•C•R
4
4 ^AB 4
BLANK
COAD ^{L D•C•R}
POR
D•C•C
L
b_0-3
L ₁₆ A=B
D•R
LOAD
O _A=B
b_0-4
BLANK DUTY
L•R LATCH
5
5
DOWN COUNTER _{DUTY CYCLE}
L
COUNTER
D•T•C
L•R LOAD
S
DIGIT TIME COUNTER
SEG DRV
OE
DIGIT DRV
OE
LED DRV
SEG A (b₀)
Â¥ 16
SEG P (b₁₅)
D1 (0)
Â¥ 12
D12 (11)
LED1
Â¥5
LED5