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參數(shù)資料
| 型號(hào)： | MSM6786 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Dynamic Display LCD Driver(1/3,1/4占空比LCD驅(qū)動(dòng)器) |
| 中文描述： | 動(dòng)態(tài)顯示LCD驅(qū)動(dòng)器（1 / 3，1 / 4占空比液晶驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 358K |
| 代理商： | MSM6786 |
Semiconductor
MSM6786
7/16
FUNCTIONAL DESCRIPTION
Pin Functional Description
OSC (Pin 50)
This is an input/output pin for the oscillator to generate LCD AC lighting and keyscan pulses.
Connect an external capacitor and resistor as shown below to form an RC oscillation circuit.
The relationship between frame frequency f
FRM
, keyscan period T
SCN
and oscillation frequency
f
OSC
is:
f
FRM
= f
OSC
/24, T
SCN
= 20/f
OSC
DATA I/O (Pin 44)
This is a serial data input/output pin. The pin is in output state from the first shift clock rise after
key
data output command writing, to the load pulse rise, and in input state otherwise. (The
pin is in input
state during reset.)
The relationship between the data levels of this pin and the operations is shown below.
Level
"H"
"L"
Display
ON
OFF
Key Status
ON (close)
OFF (open)
CLOCK (Pin 43)
This is an input pin for the shift clock. DATA I/O pin data is either input or output in
synchroniza-tion with each rising clock edge.
LOAD (Pin 42)
This is a load pulse input pin used to transfer serial input data to a latch for display, to write
commands, or to release the DATA I/O pin in output state.
C
O
OSC
R
O
V
DD
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