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參數(shù)資料
| 型號： | S6B0728 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 132 SEG / 128 COM DRIVER & CONTROLLER FOR STN LCD |
| 中文描述： | 132賽格/ 128 COM驅(qū)動程序 |
| 文件頁數(shù)： | 17/60頁 |
| 文件大?。?/td> | 530K |
| 代理商： | S6B0728 |
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132 SEG / 128 COM DRIVER & CONTROLLER FOR STN LCD PRELIMINARY SPEC. VER. 0.1
S6B0728
14
DISPLAY DATA RAM (DDRAM)
The Display Data RAM stores pixel data for the LCD. It is 128-row by 132-column addressable array. Each pixel
can be selected when the page and column addresses are specified. The 128 rows are divided into 16 pages of 8
lines. Data is read from or written to the 8 lines of each page directly through DB0 to DB7. The display data of DB0
to DB7 from the microprocessor correspond to the LCD common lines as shown in figure 6. The microprocessor
can read from and write to RAM through the I/O buffer. Since the LCD controller operates independently, data can
be written into RAM at the same time as data is being displayed without causing the LCD flicker.
COM0
COM1
COM2
COM3
COM4
- -
- -
- -
- -
- -
DB0
DB1
DB2
DB3
DB4
0
1
0
1
0
0
0
1
0
0
1
0
1
1
0
- -
- -
- -
- -
- -
0
1
0
0
1
Display Data RAM LCD Display
Figure 7. RAM-to-LCD Data Transfer
Page Address Circuit
This circuit is for providing a page address to Display Data RAM shown in figure 8. It incorporates 4-bit page
address register changed by only the “Set Page” instruction.
Line Address Circuit
This circuit assigns DDRAM a line address corresponding to the first line (COM0) of the display. Therefore, by
setting line address repeatedly, it is possible to realize the screen scrolling and page switching without changing
the contents of on-chip RAM as shown in figure 7. It incorporates 7-bit line address register changed by only the
initial display line instruction and 7-bit counter circuit. At the beginning of each LCD frame, the contents of register
are copied to the line counter which is increased by internal latch signal and generates the Line Address for
transferring the 132-bit RAM data to the display data latch circuit. However, display data of icons are not scrolled
because the MPU can not access Line Address of icons.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S6B0741 | 128 SEG / 129 COM DRIVER %26 CONTROLLER FOR 4 GRAY SCALE STN LCD |
| S6B0755 | 128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD |
| S6B0756 | 65COM / 96 SEG DRIVER & CONTROLLER FOR STN LCD |
| S6B0759 | 81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD |
| S6B0794 | 160 SEG / COM DRIVER FOR STN LCD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S6B0741 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:128 SEG / 129 COM DRIVER & CONTROLLER FOR 4 GRAY SCALE STN LCD |
| S6B0755 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD |
| S6B0756 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:65COM / 96 SEG DRIVER & CONTROLLER FOR STN LCD |
| S6B0759 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD |
| S6B0794 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:160 SEG / COM DRIVER FOR STN LCD |
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