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參數(shù)資料
| 型號： | PCF2119X |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | LCD controllers/drivers |
| 中文描述： | LCD控制器/驅(qū)動器 |
| 文件頁數(shù)： | 10/68頁 |
| 文件大?。?/td> | 346K |
| 代理商： | PCF2119X |
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2003 Jan 30
10
Philips Semiconductors
Product specification
LCD controllers/drivers
PCF2119X
7.12
Character Generator ROM (CGROM)
The Character Generator ROM generates 240 character
patterns in a 5
×
8 dot format from 8-bit character codes.
Figures 6 to 10 shows the character sets that are currently
implemented.
7.13
Character Generator RAM (CGRAM)
Up to 16 user defined characters may be stored in the
Character Generator RAM. Some CGRAM characters
(see Fig.19) are also used to drive icons (6 if icons blink
and both icon rows are used in the application; 3 if no blink
but both icon rows are used in the application; 0 if no icons
are driven by the icon rows). The CGROM and CGRAM
use a common address space, of which the first column is
reserved for the CGRAM (see Fig.6 to Fig.10). Figure 11
shows the addressing principle for the CGRAM.
7.14
Cursor control circuit
The cursor control circuit generates the cursor (underline
and/or cursor blink as shown in Fig.5) at the DDRAM
address contained in the address counter.
When the address counter contains the CGRAM address
the cursor will be inhibited.
7.15
Timing generator
The timing generator produces the various signals
required to drive the internal circuitry. Internal chip
operation is not disturbed by operations on the data buses.
7.16
LCD row and column drivers
The PCF2119x contains 18 row and 80 column drivers,
which connect the appropriate LCD bias voltages in
sequence to the display in accordance with the data to be
displayed. R17 and R18 drive the icon rows.
The bias voltages and the timing are selected
automatically when the number of lines in the display is
selected. Figures 12 to 15 show typical waveforms.
Unused outputs should be left unconnected.
Fig.5 Cursor and blink display examples.
MGA801
cursor
5 x 7 dot character font
alternating display
cursor display example
blink display example
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCF2119X_10 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD controllers/drivers Single-chip LCD controller and driver |
| PCF2119X_11 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD controllers/drivers Single-chip LCD controller and driver |
| PCF2119X-2 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD controllers/drivers |
| PCF2120 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quartz oscillator |
| PCF2120TK | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quartz oscillator |
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