MSM6669 Просмотр технического описания (PDF) - Oki Electric Industry

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MSM6669

80-DOT LCD SEGMENT DRIVER

Oki Electric Industry 

¡ Semiconductor

MSM6669

• D0, D1, D2, D3

These are display data input pins. Display data is input in synchronization with a clock pulse.

Table 1 gives the relation between the display data, DF, liquid crystal drive output, and liquid

crystal display.

Display data

L

H

L

H

Table 1

DF

Liquid crystal drive output

Liquid crystal display

L

Non-select level

(V3)

OFF

L

Select level

(V1)

ON

H

Non-select level

(V4)

OFF

H

Select level

(VEE)

ON

• SHL

This is an input pin used to change the loading direction of display data.

Table 2 shows the correspondence between the bit positions of the 4-bit data (D0 to D3), its

loading direction, and driver outputs (O1 to O80).

Table 2

SHL

L

H

D0 → O1 → O5

D1 → O2 → O6

D2 → O3 → O7

D3 → O4 → O8

D0 → O80 → O76

D1 → O79 → O75

D2 → O78 → O74

D3 → O77 → O73

Direction of data loading

O77

O78

O79

O80

O4

O3

O2

O1

Last data

First data

8/9

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