MSM9004-01 Ver la hoja de datos (PDF) - Oki Electric Industry

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Fabricante

MSM9004-01

1/3, 1/4 DUTY LCD DRIVER WITH 4-DOT COMMON DRIVER AND 49-DOT SEGMENT DRIVER

Oki Electric Industry 

¡ Semiconductor

MSM9004-01/02

FUNCTIONAL DESCRIPTION

Display Data Input

CLOCK2

DATA

D49 D48 D47 D46 D45

D2 D1 0 0 0 C1 C2 C3 C4

LOAD

LCD display bit

(49 bits)

Note: Always set a logic "0" to the dummy bit.

Dummy bit

(3 bits)

Select bit

(4 bits)

LCD Display Bit - LCD Panel Lighting Status Correspondence Table

LCD display bit

(D1 to D49)

1

0

LCD panel lighting

status

ON

OFF

LCD Display Bit - Segment Output Correspondence Table

LCD display bit D1

Segment output SEG1

D2

SEG2

D45

D46

D47

D48

D49

SEG45 SEG46 SEG47 SEG48 SEG49

Select Bit - Data Latch Correspondence Table

Display data writing Corresponding

C4 C3 C2 C1

data latch

common output

0

0

0

1

Data latch 1

COM1

0

0

1

0

Data latch 2

COM2

0

1

0

0

Data latch 3

COM3

1

0

0

0

Data latch 4

COM4

The select bits C1 to C4 select Data latch 1 to Data latch 4 corresponding to COM 1 to COM 4

independently. If logic "1s" are selected to multiple select bits, the LCD display bits are written

to all corresponding data latches.

Example:

When logic "1s" are set to all select bits C1 to C4, and logic "0s" are set to all LCD display bits D1

to D49, logic "0s" are written to Data latch 1 to Data latch 4 by one data input. This leads to turning

off the entire LCD panel.

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