參數(shù)資料
型號(hào): ML9050
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: 132-Channel LCD Driver with Built-in RAM for LCD Dot Matrix Displays
中文描述: 132通道液晶內(nèi)置液晶點(diǎn)陣顯示RAM的驅(qū)動(dòng)程序
文件頁(yè)數(shù): 3/71頁(yè)
文件大小: 472K
代理商: ML9050
Semiconductor
ML9050/9051
3/71
PEDL9050-02
PIN DESCRIPTION
Function
Pin name
Number
of pins
8
Description
MPU
Interface
I/O
I/O
D0 to D7
This is an 8-bit bi-directional data bus that can be connected to an 8-bit
or 16-bit standard MPU data bus. When a serial interface is selected (P/
S
= "L"):
D7: Serial data input pin (SI)
D6: Serial clock input pin (SCL)
In this case, D0 to D5 will be in the Hi-Z state. D0 to D7 will all be in the
Hi-Z state when the chip select is in the inactive state.
Normally, the lowest bit of the MPU address bus is connected and used
for distinguishing between data and commands.
A0 = "H": Indicates that D0 to D7 is display data.
A1 = "L": Indicates that D0 to D7 is control data.
Initial setting is made by making
RES
= "L". The reset operation is made
during the active level of the RES signal.
These are the chip select signals. The Chip Select of the LSI becomes
active when
CS1
is "L" and also CS2 is "H" and allows the input/output of
data or commands.
The active level of this signal is "L" when connected to an 80-series MPU.
This terminal is connected to the
RD
signal of the 80-series MPU, and the
data bus of the ML9050/9051 goes into the output state when this signal
is "L".
The active level of this signal is "H" when connected to a 68-series MPU.
This pin will be the Enable and clock input pin when connected to a 68-
series MPU.
The active level of this signal is "L" when connected to an 80-series MPU.
This terminal is connected to the
WR
signal of the 80-series MPU. The
data on the data bus is latched into the ML9052 at the rising edge of the
WR
signal.
When connected to a 68-series MPU, this pin becomes the input pin for
the Read/Write control signal.
R/
W
= "H": Read, R/
W
= "L": Write
This is the pin for selecting the MPU interface type.
C86 = "H": 68-Series MPU interface.
C86 = "L": 80-Series MPU interface.
1
I
A0
1
I
RES
2
I
CS1
CS2
1
I
RD
(E)
1
I
WR
(R/
W
)
1
I
C86
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