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ML9092-02 Datasheet(PDF) 15 Page - List of Unclassifed Manufacturers

Part No. ML9092-02
Description  LCD Driver with Key Scanner and RAM
Download  66 Pages
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Maker  ETC2 [List of Unclassifed Manufacturers]
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ML9092-02 Datasheet(HTML) 15 Page - List of Unclassifed Manufacturers

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FEDL9092-01
LAPIS Semiconductor
ML9092-01/02/03/04
15/66
CS
Chip select input pin. A Schmitt circuit is internally connected to this pin. An “L” level selects the chip, and an
“H” level does not select the chip. During the “L” level, internal registers can be accessed.
CP
Clock input pin for serial interface data I/O. A Schmitt circuit is internally connected to this pin. Data input to the
DI/O pin is synchronized to the rising edge of the clock. Output from the DI/O pin is synchronized to the falling
edge of the clock.
 DI/O
Serial interface data I/O pin. A Schmitt circuit is internally connected to this pin. This pin is in the output state
only during the interval beginning when commands for key scan data read, RAM read or rotary encoder are written
until the
CS signal rises. At all other times this pin is in the input state. (When reset, the input state is set.) The
relation between data level of this pin and operation is listed below.
Data level
LCD display
Key status
Rotary switch
“H”
Light ON
ON
Count value
“L”
Light OFF
OFF
Count value
 KREQ
Key scan read and rotary encoder read READY signal output pin.
 OSC1
Input pin for RC oscillation. A Schmitt circuit is internally connected to this pin. An oscillation circuit is
configured by connecting this pin and OSC2 with a resistor (R) placed across the connection (see figure below).
Make the wiring between this pin and the resistor as short as possible. If an external master oscillation clock is to
be input, input the master oscillation clock to this pin.
OSC1
OSC2
R
R = 56 k

(VDD = 4.5 to 5.5 V)
 OSC2
Output pin for RC oscillation. A Schmitt circuit is internally connected to this pin. An oscillation circuit is
configured by connecting this pin and OSC1 with a resistor (R) placed across the connection (see figure above).
Make the wiring between this pin and the resistor as short as possible. If an external master oscillation clock is to
be input, leave this pin unconnected (open).
RESE
Reset signal input pin. A Schmitt circuit is internally connected to this pin. The initial state can be set by pulling
this pin to an “L” level. Refer to the “Output, I/O and Register States in Response to Reset Input” page for the
initial states of each register and display.
An internal pull-up resistor is connected to this pin. Connecting an external capacitor enables power-on reset.
 TEST
Test signal input pin. Connect this pin to VSS.


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