ST7066U View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

ST7066U

Dot Matrix LCD Controller/Driver

Unspecified 

ST7066U

When display shift operation is performed, the DDRAM address shifts. See Figure 5.

Display

Position

123456

00 01 02 03 04 05

DDRAM

Address 40 41 42 43 44 45

(hexadecimal)

………………..

………………..

38 39 40

25 26 27

65 66 67

Figure 4 2-Line Display

Display

Position

DDRAM

Address

12345678

00 01 02 03 04 05 06 07

40 41 42 43 44 45 46 47

For

Shift Left

01 02 03 04 05 06 07 08

41 42 43 44 45 46 47 48

For

Shift Right 27 00 01 02 03 04 05 06

67 40 41 42 43 44 45 46

Figure 5 2-Line by 8-Character Display Example

Case 2: For a 16-character ´ 2-line display, the ST7066U can be extended using one 40-output

extension driver. See Figure 6.

When display shift operation is performed, the DDRAM address shifts. See Figure 6.

Display

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Position

DDRAM 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

Address

40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F

For

Shift

Left

01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10

41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50

For

Shift

Right

27 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E

67 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E

Figure 6 2-Line by 16-Character Display Example

V2.2

11/42

2006/05/11

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