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ML9092-02 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

Part No. ML9092-02
Description  LCD Driver with Key Scanner and RAM
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Maker  ETC2 [List of Unclassifed Manufacturers]
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ML9092-02 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers

 
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LAPIS Semiconductor
FEDL9092-01
Issue Date: Nov. 4, 2003
ML9092-01/02/03/04
LCD Driver with Key Scanner and RAM
1/66
GENERAL DESCRIPTION
The ML9092-01/02/03/04 are LCD drivers that have internal RAM and a key scan function. They are best suited
for car audio displays.
Since 1-bit data of the display data RAM corresponds to the light-on or light-off of 1-dot of the LCD panel (a bit
map system), a flexible display is possible.
A graphic display system of a maximum of 60
 10 dots (56  10 dots for ML9092-01, 60  10 dots for
ML9092-02/03/04). can be implemented.
The ML9092-01/02 do not require any power supply circuit to drive the LCD, because they have internal voltage
doublers. (If a large-sized panel is driven, use the ML9092-03, to which the LCD driving voltage is supplied
externally.)
The internal key scan circuit (5
 5 key scanning for ML9092-01/04, 6  4 key scanning for ML9092-02/03) has
eliminated the needs of key scanning by the CPU, thereby enabling the efficient use of the CPU ports.
FEATURES
 Logic voltage
: 4.5 to 5.5 V
 LCD drive voltage
: 4.5 to 16.5 V (positive voltage)
 Segment output
: 56 outputs for ML9092-01; 60 outputs for ML9092-02/03/04
 Common output
: 10 outputs
 Built-in bit-mapped RAM
: 60
 10 = 600 bits (for ML9092-01 only: 56  10 = 560 bits for the RAM
display area)
 4-pin serial interface with CPU:
CS, CP, DI/O, KREQ
 Built-in LCD drive bias resistors
 Built-in voltage doubler circuit
 For the ML9092-01/04, the built-in 5  5 key scanner makes it possible to read the status of 25 key switches and
1-channel rotary encoder. In addition, the ML9092-01/04 have an 8-bit, 3-channlel PWM circuit built in.
For the ML9092-02/03, the built-in 6
 4 key scanner makes it possible to read the status of 24 key switches and
1-channel rotary encoder.
 Port A output
: 1 pin, output current = –15 mA
: Can be used for LED driving
 Port B output
: 3 pins, output current = –2 mA
: Applies to ML9092-01/04 (capable of PWM
output)
 Port C output
: 5 pin, output current = –2 mA
: Applies to ML9092-01 only
 Port D output
: 5 pins, output current = –2 mA
: Applies to ML9092-01 only
 Temperature range
: –40 to +85
C
 Package: 100-pin plastic TQFP (TQFP100-P-1414-0.50-K)
(Product name: ML9092-01TB, ML9092-02TB, ML9092-03TB, ML9092-04TB)


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