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ML9041

DOT MATRIX LCD CONTROLLER DRIVER

Oki Electric Industry 

E2B0054-19-64

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ML9041

DOT MATRIX LCD CONTROLLER DRIVER

This version: JunM. 1L99909P4r1eliminary

GENERAL DESCRIPTION

The ML9041 used in combination with an 8–bit or 4–bit microcontroller controls the operation

of a character type dot matrix LCD.

FEATURES

• Easy interfacing with 8–bit or 4–bit microcontroller

• Switchable between serial and parallel interfaces

• Dot–matrix LCD controller/driver for a small (5 ¥ 7 dots) or large (5 ¥ 10 dots) font

• Built–in circuit allowing automatic resetting at power–on

• Built–in 17 common signal drivers and 100 segment signal drivers

• Built–in character generation ROM capable of generating 160 small characters (5 ¥ 7 dots) or

32 large characters (5 ¥ 10 dots)

• Creation of character patterns by programming: up to 8 small character patterns (5 ¥ 8 dots) or

up to 4 large character patterns (5 ¥ 11 dots)

• Built–in RC oscillation circuit using external or internal resistors

• Program–selectable duties: 1/9 duty (1 line: 5 ¥ 7 dots + cursor + arbitrator), 1/12 duty (1 line:

5 ¥ 10 dots + cursor + arbitrator), or 1/17 duty (2 lines: 5 ¥ 7 dots + cursor + arbitrator)

• Built–in bias dividing resistors to drive the LCD

• Bi–directional transfer of segment outputs

• Bi–directional transfer of common outputs

• Equipped with a 100–dot arbitrator

• Display shifting on each line

• Built–in contrast control circuit

• Built–in voltage multiplier circuit

• Chip (Gold Bump) Product name : ML9041CVWA

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