ML9040 datasheet(33/47 Pages) OKI

Part #	ML9040

Description	DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER

Download	47 Pages

Scroll/Zoom	100%

Manufacturer	OKI [OKI electronic componets]

Direct Link	http://www.oki.com

Logo

33 / 47 page

ML9040-Axx/-Bxx

¡ Semiconductor

33

Interface with LCD and MSM5259

Display examples when setting the 5 x 7 dots character font 1-line mode, 5 x 10 dots character font

1-line mode, and 5 x 7 dots character font 2-line mode through instructions are shown in Figures

4, 5, and 6, respectively.

When the 5 x 7 dots character font is set in the 1-line display mode, the COM signals COM9 to

COM16 are output for extinguishing.

Likewise, when the 5 x 10 dots character font (1-line is set), the COM signals COM12 to COM16

are output for display-off.

The display example shows a combination of 16 characters (32 characters for the 2-line display

mode) and the LCD. When the number of MSM5259s are increased according to the increase in

the number of characters, it is possible to display a maximum of 80 characters.

Besides, it is necessary to generate bias voltage required for LCD operation by splitting resistors

outside the IC to input it to ML9040-Axx/-Bxx and MSM5259.

Examples of these bias voltages are shown in Figures 7, 8, 9, and 10. Basically, this can be done

by dividing the voltage by the resistors as shown in Figures 7 and 8. If the value of resistor R is

made larger to reduce system power consumption, the LCD operating margin decreases and the

LCD driving waveform is distorted. To prevent this, a by-pass capacitor is serially connected to

the resistor to lower voltage division impedance caused by the splitting of resistors as shown in

Figures 9 and 10.

As the values of R, VR, and C vary according to the LCD size used and VLCD (LCD drive voltage),

these values have to be determined through actual experimentation in combination with the

LCD.

(Example set values: R = 3.3 to 10kW, VR = 10 to 30kW, and C = 0.0022 mF to 0.047 mF)

Figure 17 shows an application circuit for the ML9040-Axx/-Bxx and MSM5259 including a bias

circuit.

The bias voltage has to maintain the following potential relation:

VDD > V1 > V2 ≥ V3 > V4 > V5

Figure 4

• In the case of 1-line 16 characters display (5 x 7 dots/font)

COM1

SEG1

SEG40

O1

O40

ML9040-Axx/-Bxx/-Cxx/-Dxx

DO

CP

DF

L

DI1

CP

MSM5259

DF

LOAD

DO20 DI21

LCD

COM8

Similar Part No. - ML9040

Manufacturer	Part #	Datasheet	Description
OKI electronic componet...	ML9040A	435Kb / 49P	DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER
	ML9040A-AXX	435Kb / 49P	DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER
	ML9040A-BXX	435Kb / 49P	DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER
	ML9040A-BXXGA	435Kb / 49P	DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER
	ML9040A-BXXWA	435Kb / 49P	DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER

More results

Similar Description - ML9040

Manufacturer	Part #	Datasheet	Description
OKI electronic componet...	MSM6222B	390Kb / 45P	DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER
	ML9040A	435Kb / 49P	DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER
	MSM6222B-01	825Kb / 37P	DOT MATRIX LCD CONTROLLER WITH 16 DOT COMMON DRIVER AND 40 DOT SEGMENT DRTVER
	MSM6665C	499Kb / 31P	DOT MATRIX LCD CONTROLLER WITH 17-DOT COMMON DRIVER AND 80-DOT SEGMENT DRIVER
	MSM9005	296Kb / 30P	DOT MATRIX LCD CONTROLLER WITH 8-DOT COMMON DRIVER AND 65-DOT SEGMENT DRIVER
	MSM6555B-XX	208Kb / 27P	DOT MATRIX LCD CONTROLLER WITH 17-DOT COMMON DRIVER AND 80-DOT SEGMENT DRIVER
	MSM6665	261Kb / 30P	DOT MATRIX LCD CONTROLLER WITH 17-DOT COMMON DRIVER AND 80-DOT SEGMENT DRIVER
	MSM5839B1111	134Kb / 7P	DOT MATRIX LCD 40 DOT SEGMENT DRIVER
Holtek Semiconductor In...	HT1602	215Kb / 6P	40 Dot Matrix LCD Segment Driver
OKI electronic componet...	MSM6262	383Kb / 52P	DOT MATRIX LCD CONTROLLER WITH 48-DOT COMMON DRIVER

More results

ML9040 Datasheet(PDF) 33 Page - OKI electronic componets

ML9040 Datasheet(HTML) 33 Page - OKI electronic componets

Similar Part No. - ML9040

Similar Description - ML9040

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

Datasheet Download

Link URL