ML9042 Ver la hoja de datos (PDF) - LAPIS Semiconductor Co., Ltd.

Número de pieza

componentes Descripción

Fabricante

ML9042

DOT MATRIX LCD CONTROLLER DRIVER

LAPIS Semiconductor Co., Ltd. 

LAPIS Semiconductor

FEDL9042-01

ML9042-xx

Note 3:

Note 4:

OSC1

OSCR3

OSCR5

OSC2

Rf = 85 k2%

OSC1

OSCR3

OSCR5

OSC2

OSC1

OSCR3

OSCR5

OSC2

The wire between OSC1 and Rf and the wire between The wire between OSCR3 and OSC2, or between OSCR5

OSC2 and Rf should be as short as possible.

and OSC2 should be as short as possible. Keep open

Keep OSCR3 and OSCR5 open.

between OSC1 and OSCR3, or between OSC1 and OSCR5.

Note 5:

tHW

tLW

Note 6:

fIN

waveform

VDD

VDD

VDD

2

2

2

Applied to the pulses entering from the OSC1 pin

fduty = tHW/(tHW + tLW) ×100 (%)

0.8VDD

0.2VDD

0.8VDD

0.2VDD

trf

tff

Applied to the pulses entering from the OSC1 pin

Note 7:

The maximum value of the voltage multiplier input voltage should be set at 2.75 V, and the

minimum value of the voltage multiplier input voltage should be set by monitoring the voltage

of V0 in actual use so that the voltage multiplier output voltage meets the specification for the

bias voltage for driving LCD after contrast adjustment.

Note 8: For 1/4 bias, V2 and V3B pins are short-circuited. V3A pin is open.

For 1/5 bias, V3A and V3B pins are short-circuited. V2 pin is open.

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