MSM9223 データシートの表示（PDF） - Oki Electric Industry

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MSM9223

27-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, ADC and Keyscan

Oki Electric Industry 

¡ Semiconductor

BLOCK DIAGRAM

MSM9223

SEG1

SEG27

GRID1 GRID2 GRID3

D-GND

VDD

VCC

(5V)

VREG

(5V)

L-GND

27 Segment Driver

3 Grid pre Driver

5V

Regulator

&

Power On

Reset

0H

7H

POR

in1-27

Out1-27

81 to 27 Segment Control

in1-27

in1-27

1H

Mode Select 0H

Out1-27

Segment Latch

1

2H

0H

Out1-27

Segment Latch

2

3H

0H

Out1-27

Segment Latch

3

POR

in1-3 POR

in1-27

POR

in1-27

POR

in1-27

CS

CLOCK

DATA I/O

OSCO

Out1-3

Control 3bit Shift Register

POR

OSC

Out1-27

4H

27bit Shift Register

POR

POR

POR

in1-10

Dimming Latch

Out1-10

10bit Digital

Dimming

DUP/TRI

Timing Generator

DIM OUT

SYNC OUT1

SYNC OUT2

6ch, 8bit

A/D Converter

7H 5H

6H

5 ¥ 5 Key Scan and Encoder Switch Interface

INT

CH1

CH6

COL1 COL5 ROW1 ROW5 A1 B1

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