HD44780UA00FS 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD44780UA00FS

Dot Matrix Liquid Crystal Display Controller/Driver

Hitachi -> Renesas Electronics 

HD44780U

• 2-line display (N = 1) (Figure 4)

 Case 1: When the number of display characters is less than 40 × 2 lines, the two lines are displayed

from the head. Note that the first line end address and the second line start address are not

consecutive. For example, when just the HD44780 is used, 8 characters × 2 lines are displayed. See

Figure 5.

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

Display

position

123 45

DDRAM

00 01 02 03 04 . . . . . . . . . . . . . . . . . .

address

(hexadecimal) 40

41

42

43

44

..................

39 40

26 27

66 67

Figure 4 2-Line Display

Display

position

12345678

DDRAM 00 01 02 03 04 05 06 07

address

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

27 00 01 02 03 04 05 06

shift right

67 40 41 42 43 44 45 46

Figure 5 2-Line by 8-Character Display Example

11

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