MSC7110-01 Datasheet, PDF (2/18 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
POR
bit 0
LOAD
bit 18
COMMAND
DECODER
b_0-16
17
3
b_15-17
4
1 _TEST
MODE
RAM
16W ¥ 17bits
A₀-A₃
17
17
L
(ROM)
PLA
Address
32 ¥ 16bits
fW RAM PC RAM fR
PLA PC1 PC2
16 _Q 12
L
PLA fR
DECODER
CONTROL
W/R
4 _b0-3
ADDRESS SELECTOR
4
LATCH
4
4
4 4O
16
OSC
TIMING
GENERATOR
W•A LOAD
W•A•C COUNT
L _{W•A•C}
R•A•C
R
L
R•A•C COUNT ^A=B
POR
4 ^b0-3
D•R LATCH
ADDRESS COMP
DIGIT
LOAD
D•C•R
4
4 ^AB 4
BLANK
LOAD L D•C•R
POR
4
D•C•C
L
b_0-3
L ₁₆ A=B
BLANK DUTY
D•R
O _A=B ^{L•R LATCH}
LOAD
b_0-4 ⁵
5
DOWN COUNTER
DUTY CYCLE
COUNTER
L
D•T•C
S
L•R LOAD
DIGIT TIME COUNTER
SEG DRV
OE
DIGIT DRV
OE
LED DRV
SEG A (b₀)
Â¥ 12
SEG L (b₁₁)
D1 (0)
Â¥ 16
D16 (15)
LED1
Â¥5
LED5