GENERAL DESCRIPTION

The ML9044 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 120 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 120–dot arbitrator

• Display shifting on each line

• Built–in contrast control circuit

• Built–in voltage multiplier circuit

• Chip (Gold Bump) Product name : ML9044CVWA