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ML9042 Datasheet(PDF) 1 Page - OKI electronic componets |
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ML9042 Datasheet(HTML) 1 Page - OKI electronic componets |
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1 / 58 page  OKI Semiconductor FEDL9042-01 Issue Date: Nov. 19, 2003 ML9042-xx DOT MATRIX LCD CONTROLLER DRIVER 1/58 GENERAL DESCRIPTION The ML9042 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 an 8-bit or 4-bit microcontroller • Switchable between serial and parallel interfaces • Dot-matrix LCD controller driver for a 5 × 8 dot font • Built-in circuit allowing automatic resetting at power-on • Built-in 17 common signal drivers and 100 segment signal drivers • Two built-in character generator ROMs each capable of generating 240 characters (5 × 8 dots) The character generator ROM can be selected by bank switching (ROM1S) pin. • Creation of character patterns by programming: up to 8 character patterns (5 × 8 dots) • Built-in RC oscillation circuit using external or internal resistors • Program-selectable duties When ABE bit is “L”: 1/8 duty (1 line: 5 × 8 dots), or 1/16 duty (2 lines: 5 × 8 dots) When ABE bit is “H”: 1/9 duty (1 line: 5 × 8 dots + arbitrator), or 1/17 duty (2 lines: 5 × 8 dots + arbitrator) • Cursor display • Built-in bias dividing resistors to drive the LCD • Bi-directional transfer of segment outputs • Bi-directional transfer of common outputs • 100-dot arbitrator display • Line display shifting • Built-in voltage multiplier circuit • Gold Bump Chip ML9042-xx CVWA/DVWA *xx indicates a character generator ROM code number. *01, 11 and 21 indicate general character generator ROM code numbers. CVWA indicates a bump chip with high hardness, and DVWA indicates a bump chip with low hardness. |
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