- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄24788 > 935208610005 (NXP SEMICONDUCTORS) LIQUID CRYSTAL DISPLAY DRIVER, UUC56 PDF資料下載
參數(shù)資料
| 型號： | 935208610005 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | LIQUID CRYSTAL DISPLAY DRIVER, UUC56 |
| 封裝： | DIE-56 |
| 文件頁數(shù)： | 8/46頁 |
| 文件大?。?/td> | 246K |
| 代理商： | 935208610005 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁
1998 Jul 30
16
Philips Semiconductors
Product specication
Universal LCD driver for low multiplex
rates
PCF8576C
6.11
Display RAM
The display RAM is a static 40
× 4-bit RAM which stores
LCD data. A logic 1 in the RAM bit-map indicates the on
state of the corresponding LCD segment; similarly, a
logic 0 indicates the off state. There is a one-to-one
correspondence between the RAM addresses and the
segment outputs, and between the individual bits of a RAM
word and the backplane outputs. The first RAM column
corresponds to the 40 segments operated with respect to
backplane BP0 (see Fig.10). In multiplexed LCD
applications the segment data of the second, third and
fourth column of the display RAM are time-multiplexed
with BP1, BP2 and BP3 respectively.
When display data is transmitted to the PCF8576C the
display bytes received are stored in the display RAM in
accordance with the selected LCD drive mode.
To illustrate the filling order, an example of a 7-segment
numeric display showing all drive modes is given in Fig.11;
the RAM filling organization depicted applies equally to
other LCD types.
With reference to Fig.11, in the static drive mode the eight
transmitted data bits are placed in bit 0 of eight successive
display RAM addresses.
In the 1 : 2 multiplex drive mode the eight transmitted data
bits are placed in bits 0 and 1 of four successive display
RAM addresses. In the 1 : 3 multiplex drive mode these
bits are placed in bits 0, 1 and 2 of three successive
addresses, with bit 2 of the third address left unchanged.
This last bit may, if necessary, be controlled by an
additional transfer to this address but care should be taken
to avoid overriding adjacent data because full bytes are
always transmitted. In the 1 : 4 multiplex drive mode the
eight transmitted data bits are placed in bits 0, 1, 2 and 3
of two successive display RAM addresses.
Table 3
LCD frame frequencies
PCF8576C MODE
FRAME
FREQUENCY
NOMINAL
FRAME
FREQUENCY
(Hz)
Normal mode
64
Power-saving mode
64
f
clk
2880
-------------
f
clk
480
----------
Fig.10 Display RAM bit-map showing direct relationship between display RAM addresses
and segment outputs, and between bits in a RAM word and backplane outputs.
0
1
2
3
1234
35
36
37
38
39
display RAM addresses (rows) / segment outputs (S)
display RAM bits
(columns) /
backplane outputs
(BP)
MBE525
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 935261851026 | LIQUID CRYSTAL DISPLAY DRIVER, UUC56 |
| 935263925005 | LIQUID CRYSTAL DISPLAY DRIVER, UUC56 |
| 935264071026 | LIQUID CRYSTAL DISPLAY DRIVER, UUC56 |
| 06771.25 | Axial Lead and Cartridge Fuses - Ceramic Body |
| 06773.15 | Axial Lead and Cartridge Fuses - Ceramic Body |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 9-352112-9 | 制造商:TE Connectivity 功能描述:Z-PACK SHLD.LOWER C - Bulk |
| 9-352151-3 | 制造商:TE Connectivity 功能描述:ZP,22C.F.U.SH.44MMW/O LUBE - Tape and Reel 制造商:TE CONNECTIVITY 功能描述:ZP,22C.F.U.SH.44MMW/O LUBE |
| 9-352151-9 | 制造商:TE Connectivity 功能描述:ZP,22C.F.U.SH.44MM - Bulk |
| 935218-17 | 制造商:JANCO 功能描述:935218-17 |
| 9352370001 | 功能描述:HEAT SHRINK SLEEVE RoHS:是 類別:線纜，導(dǎo)線 - 管理 >> 標(biāo)簽，標(biāo)記 系列:HT-SCE 標(biāo)準(zhǔn)包裝:250 系列:CM-SCE 標(biāo)簽類型:標(biāo)準(zhǔn) 標(biāo)簽尺寸:2.00" x 0.25"（50.8mm x 6.4mm） 顏色:白 材質(zhì):聚烯烴 適用于相關(guān)產(chǎn)品:點陣打印機 包裝:* 工作溫度:-55°C ~ 135°C 其它名稱:A105291CM-SCE-TP-1/4-4H-9 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。