page_title: Hitachi HD44780 LCD controller
section_title: Font
hierarchical_section_title: Hitachi HD44780 LCD controller / Font
caption_attribution_description: English: Photo of amber-backlit alphanumeric 8 characters by 2 lines HD44780 compatible LCD module. Deutsch: Foto eines amber-hintergrundbeleuchteten alphanumerischen HD44780-kompatiblen LCD Moduls
context_page_description: The Hitachi HD44780 LCD controller is an alphanumeric dot matrix liquid crystal display controller developed by Hitachi in the 1980s. The character set of the controller includes ASCII characters, Japanese Kana characters, and some symbols in two 28 character lines. Using an extension driver, the device can display up to 80 characters. The HD44780 is one of the most popular character LCDs ever made, with numerous third-party displays utilizing its 16-pin interface and instruction set for compatibility.
context_section_description: The original HD44780 character generator ROM contains 208 characters in a 5×8 dot matrix, and 32 characters in a 5×10 dot matrix.  More recent compatible chips are available with higher resolution, matched to displays with more pixels.
  Two versions of the ROM have been developed:
  HD44780UA00, the standard (Japanese) version, which includes katakana characters and some Greek letters and mathematical symbols
  HD44780UA02, a European version, which includes the complete set of Greek, Cyrillic and Western European characters (with diacritics)
  The 7-bit ASCII subset for the Japanese version is non-standard: it supplies a Yen symbol where the backslash character is normally found, and left and right arrow symbols in place of tilde and the rubout character.
  A limited number of custom characters can be programmed into the device in the form of a bitmap using special commands. These characters have to be written to the device each time it is switched on, as they are stored in volatile memory.
caption: Amber backlight on a HD44780 display
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