ML9090-02 데이터 시트보기 (PDF) - Oki Electric Industry

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ML9090-02

LCD Driver with Key Scanner and RAM

Oki Electric Industry 

¡ Semiconductor

BLOCK DIAGRAM

ML9090-02

PEDL9090-02

ML9090-01,-02

COM1

COM18 SEG1

SEG80

VIN

VC1

VC2

VOLTAGE

DOUBLER/

VS1

TRIPLER

VS2

18-OUT

COMMON DRIVER

80-OUT SEGMENT DRIVER

DT

SHIFT REGISTER

DATA LATCH

LCD BIAS

V2

VOLTAGE

V3B

DIVIDING

V3A

CIRCUIT

DISPLAY DATA RAM

80 ¥ 18 BITS

CS

CP

DI/O

OSC1

OSC2

OSCILLATION

CIRCUIT

I/O

BUFFER

X ADDRESS DECODER

TIMING

GENERATOR

X ADDRESS COUNTER

X ADDRESS REGISTER

RESET

TEST

VDD

VSS

1 PORT

DRIVER

PA0

5¥5

KEY SCANNER

CO C1 C2 C3 C4

R0 R1 R2 R3 R4 KREQ

3/38

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