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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： | 2/23页 |
| 文件大小： | 359K |
| 代理商： | WFP6462 |
10
November 12, 1999
Rev. 0.03
WFP6462
300-Channel 6-Bit Dot Inversion Driver
4.
DETAILED PAD DESCRIPTIONS
The following abbreviations are used for pad types in the following sections: (I) input;
(O) output; (I/O) Input/Output, (#) active ‘low’ signal.
Name
Pad #
Type
Description
LD300_1
7
I
LOAD DIRECTION: Controls the direction in which the data
is loaded into the Input Register:
When LD300_1 = ‘0’, data is loaded from Channel
VS1 to VS300.
When LD300_1 = ‘1’, data is loaded from Channel
VS300 to VS1.
EIO1#, EIO300#
51,1
I/O
ENABLE IN/OUT: The EIO1# and EIO300# active ‘low’ sig-
nals initiate the loading of data into the Input Register of the
WFP6462. When one of the EIOx# ‘s is configured as an
input, the other is configured as an output, with the direction
determined by the LD300_1 input (see Table 4-1). The
EIOx# outputs are designed to be connected to the EIOx#
inputs of adjacent devices to allow a series of drivers to
operate sequentially. When a ‘low’ is applied to the EIOx#
pin configured as an input on the first device in the series,
data is loaded from the three sets of 6-bit Data Inputs into
the first three 6-bit Input-Register locations. On subsequent
transitions of the DCLK, data continues to be loaded into the
remaining 6-bit Input-Register locations. When the register
is full (300 words), the EIOx# pin configured as an output
goes ‘low’, enabling the next driver. The data load sequence
is summarized in Table 4-1, Figure 4-1 and Figure 4-2.
Table 4-1: Input/Output Selection for EIO1# and EIO300#
LD300_1
Input
EIO1#, EIO300# Functionality
Data Loading Sequence
EIO1#
EIO300#
‘0’
Input
Output
Channel 1 to 300
‘1’
Output
Input
Channel 300 to 1
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