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PDF ML9475 Data sheet ( Hoja de datos )
| Número de pieza | ML9475 | |
| Descripción | 1/3 or 1/4 Duty 40-Output LCD Driver | |
| Fabricantes | LAPIS | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ML9475 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
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ML9475
1/3 or 1/4 Duty, 40-Output LCD Driver
FEDL9475-01
Issue Date: Mar. 1, 2010
GENERAL DESCRIPTION
The ML9475 is an LCD driver for dynamic display. It has a function to switch between 1/3 and 1/4 duty. When
1/4 duty is selected, an LCD of up to 160 segments can be driven directly; when 1/3 duty is selected, an LCD of
up to 120 segments can be driven directly.
FEATURES
Logic power supply voltage
: 2.7 to 3.6 V, 4.5 to 5.5 V
Driver power supply voltage
: 3.5 to 5.5 V
Operatin g temperature
: 40 to +105°C
40 segment outputs
1/4 duty
: Up to 160 segments can be displayed.
1/3 duty
: Up to 120 segments can be displayed.
Serially interfaces with the CPU using the three signal lines of LOAD, DATA_IN, and CLOCK
Built-in RC oscillator circuit for LCD AC drive (the CLKSEL pin allows selecting an external clock input)
Built-in voltage-dividing resistor for bias voltage generation
Package
: 56-pin plastic QFP (QFP56-P-910-0.65-2K)
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http://www.Datasheet4U.com
1 page  
*1: Oscillator circuit configuration
LVDD
RO
CO
OSC
*2: Reset circuit configuration
LVDD
CRST
RESET
FEDL9475-01
ML9475
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5 Page 
FEDL9475-01
ML9475
FUNCTIONAL DESCRIPTION
Description of Operation
Display data input
As described in the section on “Data Structure,” display data con sists of a data field, which corresponds to the
LCD segments ON and OFF, and a command field, which indicates the input of display data.
Set a value in each of bits C0 and C1 in the command field according to the common output that corresponds to
the display data, and set a display data input command in the remaining four bits.
Data that has been input to the DATA_IN pin is loaded into the shift register on the rising edges of the CLOCK
pulses, transferred to the display data latch during the “H” level period of the LOAD pulse, and then output via
the segment driver.
CLOCK
DATA_IN D1 D2 D3 D4
D38 D39 D40 C0 C1 C2 C3 C4 C5
LOAD
Display output
Old data
New data
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| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet ML9475.PDF ] | |
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