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44780 Datasheet(PDF) 1 Page - Hitachi Semiconductor |
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44780 Datasheet(HTML) 1 Page - Hitachi Semiconductor |
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1 / 59 page  1 HD44780U (LCD-II) (Dot Matrix Liquid Crystal Display Controller/Driver) Description The HD44780U dot-matrix liquid crystal display controller and driver LSI displays alphanumerics, Japanese kana characters, and symbols. It can be configured to drive a dot-matrix liquid crystal display under the control of a 4- or 8-bit microprocessor. Since all the functions such as display RAM, character generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally provided on one chip, a minimal system can be interfaced with this controller/driver. A single HD44780U can display up to one 8-character line or two 8-character lines. The HD44780U has pin function compatibility with the HD44780S which allows the user to easily replace an LCD-II with an HD44780U. The HD44780U character generator ROM is extended to generate 208 5 × 8 dot character fonts and 32 5 × 10 dot character fonts for a total of 240 different character fonts. The low power supply (2.7V to 5.5V) of the HD44780U is suitable for any portable battery-driven product requiring low power dissipation. Features • 5 × 8 and 5 × 10 dot matrix possible • Low power operation support: 2.7 to 5.5V • Wide range of liquid crystal display driver power 3.0 to 11V • Liquid crystal drive waveform A (One line frequency AC waveform) • Correspond to high speed MPU bus interface 2 MHz (when V CC = 5V) • 4-bit or 8-bit MPU interface enabled • 80 × 8-bit display RAM (80 characters max.) • 9,920-bit character generator ROM for a total of 240 character fonts 208 character fonts (5 × 8 dot) 32 character fonts (5 × 10 dot) |
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Similar Description - 44780 |
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