The ST7066 dot-matrix liquid crystal display controller and driver LSI displays alphanumeric, 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
The ST7066 is a dot-matrix liquid crystal display controller and driver LSI designed to drive alphanumeric, Japanese kana, and symbol displays. It integrates display RAM, a character generator, and a liquid crystal driver into a single chip, allowing for a minimal system interface with a 4-bit or 8-bit microprocessor. The device supports low power operation with a supply voltage range of 2.7V to 5.5V and offers a maximum display size of 80 characters in a single line or 40 characters in two lines.
| Supply Voltage | 2.7V to 5.5V |
|---|---|
| LCD Driver Voltage | 3.0 to 11V |
| Maximum Bus Speed | 2 MHz |
| Display RAM Capacity | 80 x 8-bit |
| Character Generator ROM | 9,920-bit |
| Character Generator RAM | 64 x 8-bit |
| LCD Driver Segments | 40 segments |
| Package Type | QFP80 |
The ST7066 supports 208 5 x 8 dot character fonts and 32 5 x 10 dot character fonts for a total of 240 different character fonts.
Yes, the ST7066 has pin function compatibility with the HD44780, KS0066U, and SED1278.
The chip supports two kinds of interface types with MPU: 4-bit bus and 8-bit bus.