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參數(shù)資料
| 型號： | V6118 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2, 4 and 8 Multiplex LCD Driver |
| 中文描述： | 2，4和8復(fù)用LCD驅(qū)動器 |
| 文件頁數(shù)： | 11/14頁 |
| 文件大小： | 465K |
| 代理商： | V6118 |
11
cascadedV6118s aresynchronized.Whencascadingdevices,
allSTRlinesmustbetiedtogether(seeFig.10).
The FR signal controls the segment output frequency
generation (see Fig. 7,8 and 9). To avoid having DC on the
display, the FR signal must have a 50% duty cycle. The
frequency of the FR signal must be n times the desired display
refresh rate, where n is the V 6118 version no. (2,4 or 8). For
example, if the desired refresh rate is 40 Hz, the FR signal
frequency must be 320 Hz for the V6118 8. A selected row (on)
isinphasewiththeFRsignal(seeFig.7,8 and 9).
It is recommended that data transfer to the V 6118 should be
synchronizedto the FR signaltoavoidafallingorrisingedgeon
the FR signal while writing data to the V 6118. The LCD pixels
change polarity with the FR signal. On the edges of the FR
signal current spikes will appear on the V
lines. If the supply lines have high impedance then voltage
spikes will appear. These voltage spikes could interfere with
dataloadingontheDIandCLKpins.
and V
supply
There are 40 LCD driver outputs on the V 6118. When
inactive the outputs S1 to Sn function as row drivers and the
outputs S(n + 1) to S40 function as column drivers, where n is
the V 6118 version no. (2,4 or 8).
outputs functionascolumn drivers(see table6).There is a one
is
When
is active, all 40
FRinput
DriveroutputS1toS40
SS
LCD
COL
COL
to one relationship between the display RAM and the LCD
driver outputs. Each pixel (segment) driven by the V 6118 on
the LCD has a display RAM bit which corresponds to it. Setting
thebit turnsthesegment"on"andclearingitturnsit"off".
TheV6118 functionsasarowandcolumn driver while the
is inactive. When active the
function as a column driver only. The former row outputs
function as column outputs. In cascaded applications one
V6118 should be used in the row column configuration (
inactive) and the rest as pure column drivers (
Fig. 10). Note when cascading V 6118s never cascades one
version with another. If a V6118 8 is used to drive the rows then
onlyV6118 8s canbecascadedwith it.When
V 6118 needs 48 bits of data in a load cycle. 40 bits are used for
the column data and 8 bits to address the display RAM
regardlessof V6118 version (2,4or8)(seeFig.4,5 and10).
input configures the V 6118 to
active) (see
is activethe
On power up the data is shift registers,the displayRAM and the
40-bit display latch are undefined. The STR input should be
taken high on power up to blank the display, and then the
display data written to the display RAM (see Fig. 11). When
finished the initial write to the display RAM, take the STR input
low to display the display RAM contents (see also section “STR
Input").
COL Input
COL
COL
COL
COL
COL
PowerUp
V6118 2/4/8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| V61188TAB | 2, 4 and 8 Multiplex LCD Driver |
| V6118852F | 2, 4 and 8 Multiplex LCD Driver |
| V61188 | 2, 4 and 8 Multiplex LCD Driver |
| V61184TAB | 2, 4 and 8 Multiplex LCD Driver |
| V6118452F | 2, 4 and 8 Multiplex LCD Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| V61182 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2, 4 and 8 Multiplex LCD Driver |
| V6118252F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2, 4 and 8 Multiplex LCD Driver |
| V61182TAB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2, 4 and 8 Multiplex LCD Driver |
| V61184 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2, 4 and 8 Multiplex LCD Driver |
| V6118452F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2, 4 and 8 Multiplex LCD Driver |
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