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参数资料
| 型号： | WFP6462 |
| 元件分类： | 显示驱动器 |
| 英文描述： | LIQUID CRYSTAL DISPLAY DRIVER, UUC355 |
| 文件页数： | 4/23页 |
| 文件大小： | 359K |
| 代理商： | WFP6462 |
12
November 12, 1999
Rev. 0.03
WFP6462
300-Channel 6-Bit Dot Inversion Driver
Name
Pad #
Type
Description (Cont.)
VS1-VS300
see Table 3-2
O
VOLTAGE OUTPUTS: These outputs drive all 300 pixel
inputs of the LCD simultaneously after the high-to-low tran-
sition of LP. Outputs are high impedance while LP is high.
D05-D00
39,40,47-50
I
DATA: The Data inputs consist of 6-bit words for each of
D15-D10
15-17,36-38
three channels. At the falling edge of DCLK, three 6-bit
D25-D20
2-4,12-14
words for three adjacent channels are loaded in parallel.
Each data bit is represented as Dij where:
i = 2-0 indicates the channel
j = 5-0 indicates the significance of the bit in each word.
Di5 indicates the MSB and Di0 indicates the LSB of the input
word.
LP
46
I
Latch Pulse: When LP is driven high, the data is transferred
from the Input Register into the Storage Register, and the
selected analog voltages drive the LCD. Also, the EIOx#
output is reset to the ‘high’ level.
DCLK
6
I
DATA CLOCK: Data is loaded into the input registers on the
high-to-low transition of DCLK for 2xCLK= low and on both
rising and falling edges of the DCLK input for 2xCLK = high.
OV8
9,44
I
ODD REFERENCE VOLTAGE INPUTS: These 9 inputs
OV7
32
supply the reference voltage inputs to the r-string DAC
OV6
29
for the odd channels VS1, VS3, ..VS299
OV5
30
OV4
28
Note: both OV8 inputs must be connected to each other
OV3
31
and to the same potential; also, both OV0 inputs must be .
OV2
27
connected to each other and to the same potential
OV1
33
OV0
8,45
EV8
10,43
I
EVEN REFERENCE VOLTAGE INPUTS: These 9 inputs
EV7
21
supply the reference voltage inputs to the r-string DAC
EV6
24
for the even channels VS2, VS4, ..VS300
EV5
23
EV4
25
Note: both EV8 inputs must be connected to each other
EV3
22
and to the same potential; also, both EV0 inputs must be .
EV2
26
connected to each other and to the same potential
EV1
20
EV0
11,42
VDDD
18
I
DIGITAL SUPPLY VOLTAGE: 2.5 V ± 0.2 or 3.3 V ± 0.3
should be provided on this pin to supply digital power to the
device.
VDDA
19
I
ANALOG SUPPLY VOLTAGE: Up to 5.5 V should be pro-
vided on this pin to supply analog power to the device. Also,
must have VDDA >= VDDD.
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