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参数资料
| 型号： | WFP7151 |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 显示驱动器 |
| 英文描述： | LIQUID CRYSTAL DISPLAY DRIVER, UUC257 |
| 封装： | TCP-257 |
| 文件页数： | 6/27页 |
| 文件大小： | 231K |
| 代理商： | WFP7151 |
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Preliminary WFP7151
- 14 -
6.1 Pin Functions, continued
(Common mode)
CLASSIFICATION
SYMBOL
NAME
INPUT/
OUTPUT
FUNCTION
Power Supply
VDD
Input
Logic power supply (+2.5 ~ +5.5V)
Power Supply
GND
Input
Ground
Power Supply
V0R,
V0L
V0
Input
Power supply pin for LCD driver voltage
Power Supply
V12R,
V12L
V12
Input
Power supply pin for LCD driver voltage
Power Supply
V43R,
V43L
V43
Input
Power supply pin for LCD driver voltage
Power Supply
LorR
Input
Bidirection shift register shift bidirection selection pin
Data is shifted left when set to Vss, ans data is
shifted right when set to "H".
Control Signal
XCK
Input
Not used
XCK is pull-down in common mode, so connect to
Vss
Control Signal
LP
Clock2
Input
Bidirectional shift register shift clock pulse input pin
Data is shifted on the falling edge of clock pulse
Control Signal
MD
Mode
Input
Mode selection pin
(1) When MD = Vss, single mode operation is
selected
(2) When MD = VDD, dual mode operation is selected
Control Signal
DI7
Data 7
Input
Dual mode data input pin
According to the data shift direction of the data shift
register, data can be input starting from the 8lst bit.
(1) When the chip is used as Dual mode, DI7 will be
pull-down.
(2) When the chip is used as Single mode DI7 won’t
pull-down
Control Signal
DI0~DI6
Data 0
to
Data 6
Input
Not used
Connect to Vss or VDD
Control Signal
FR
AC
control
Input
AC signal input for LCD driving waveform
(1) The input signal is level-shifted from logic voltage
level to LCD drive voltage level, and controls LCD
drive circuit
(2) Normally inputs a frame inversion signal
(3) The LCD driver output pin’s output voltage level
can be set using the line latch output signal and
the FR signal.
(4) Trueth table shown in Table 4-2
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