参数资料
型号: WFP7152
厂商: WINBOND ELECTRONICS CORP
元件分类: 显示驱动器
英文描述: LIQUID CRYSTAL DISPLAY DRIVER, UUC304
封装: TCP-304
文件页数: 10/33页
文件大小: 446K
代理商: WFP7152
Preliminary WFP7152
- 18 -
6.1 Pin Functions (Common mode), continued
CLASSIFICATION
SYMBOL
NAME
INPUT/
OUTPUT
FUNCTION
Control Signal
EIO1
Enable
I/O
Input/
Output
Bidirectional shift register shift data
input/output pin.
Input pin for right shift, output pin for left
shift.
When EIO1 is used as input pin for right
shift, it will be pull-down.
When EIO1 is used as output pin for left
shift, it won’t be pull -down.
Control Signal
EIO2
Enable
I/O
Input/
Output
Bidirectional shift register shift data
input/output pin.
Input pin for left shift, output pin for right
shift.
When EIO2 is used as input pin for left shift,
it will be pull-down.
When EIO2 is used as output pin for right
shift, it won’t be pull -down.
Control Signal
SorC
Mode
Select
Input
Segment mode/common mode selection
pin.
Set SorC = Vss, "L", common mode is set
Control Signal
TEST1
Test1
Input
Test mode selection input pin.
During normal operation, tie to Vss level "L".
LCD driver output
Y1-Y240
Y1...Y240
Output
LCD segment driver output pins.
6.2 Functional Operations
6.2.1 Truth Table
Table 6-1 (Segment mode)
FR
LATCH DATA
DISPOFF
DRIVER OUTPUT VOLTAGE LEVEL (Y1-Y160)
L
H
V43
L
H
V5
H
L
H
V12
H
V0
X
L
V5
Here, Vss <= V5 < V43 < V12 < V0, H: VDD (+2.5 ~ +5.5V), L: Vss(0V), X: Don’t Care
Note: There are two kinds of power supply (logic level voltage, LCD drive voltage) for LCD driver, Please supply regular voltage
which assigned by specification for each power pin. X should be VDD or Vss, avoiding floating
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