(Dot Matrix Liquid Crystal Display Controller/Driver) ADE-207-272(Z)
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 Г—
8 dot character fonts and 32 5 Г— 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 Г— 8 and 5 Г— 10 dot matrix possible Low power operation support:
пЈ§ 2.7 to 5.5V Wide range of liquid crystal display driver power
пЈ§ 3.0 to 11V Liquid crystal drive waveform
пЈ§ A (One line frequency AC waveform) Correspond to high speed MPU bus interface
пЈ§ 2 MHz (when VCC = 5V) 4-bit or 8-bit MPU interface enabled 80 Г— 8-bit display RAM (80 characters max.) 9,920-bit character generator ROM for a total of 240 character fonts
пЈ§ 208 character fonts (5 Г— 8 dot)
пЈ§ 32 character fonts (5 Г— 10 dot) 1 HD44780U 64 Г— 8-bit character generator RAM
пЈ§ 8 character fonts (5 Г— 8 dot) …