Description

The ST7070 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.

Features

 5 x 8 dot matrix possible

 Low power operation support:

  -- 2.7 to 5.5V

 Wide range of LCD driver power

  -- 3.0 to 7.0V

 Support high speed serial interface

 Correspond to high speed MPU bus interface

  -- 2 MHz (when VCC = 5V)

 80 x 9-bit display RAM (80 characters max.)

 19840-bit character generator ROM for a total of 496 character fonts(5 x 8 dot)

 64 x 8-bit character generator RAM

  -- 8 character fonts (5 x 8 dot)

 16-common x 80-segment liquid crystal display driver

 Programmable duty cycles

  -- 1/8 for one line of 5 x 8 dots with cursor

  -- 1/16 for two lines of 5 x 8 dots & cursor

 Wide range of instruction functions: Display clear, cursor home, display on/off, cursor on/off, cursor shift, display shift

 Automatic reset circuit that initializes the controller/driver after power on

 Internal oscillator with external resistors

 Low power consumption

 Bare Chip available (ST7070-XX-B)