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參數資料
| 型號： | PCF2119X-2 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | LCD controllers/drivers |
| 中文描述： | LCD控制器/驅動器 |
| 文件頁數： | 9/60頁 |
| 文件大?。?/td> | 284K |
| 代理商： | PCF2119X-2 |
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28. August 2000
9
Philips Semiconductors
Product specification
LCD controllers/drivers
PCF2119x-2
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.
Figure 6 to 8 show 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.17) 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). Figure 9 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 10 to 13 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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相關代理商/技術參數 |
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| 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 |
| PCF2120TK/1,118 | 功能描述:標準時鐘振蕩器 Quartz oscillator RoHS:否 制造商:AVX 產品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列: |
| PCF2120TK/1118 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP Semiconductors 功能描述: |
| PCF2120U | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quartz oscillator |
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