GENERAL DESCRIPTION
ST7038 dot-matrix liquid crystal display controller can display alphanumeric, Japanese kana characters and symbols. It can be configured to drive a dot-matrix liquid crystal display under the control of a microprocessor with 4/8-bit 6800-series or 8080-series, 3/4-line serial or fast I2C interface. Since all the functions (such as display RAM, character generator ROM/RAM and liquid crystal driver) required for driving a dot-matrix liquid crystal display are internally embedded in this chip, a minimal system can be used with this controller/driver.

FEATURES
• 5 x 8 dot matrix possible
• Support low voltage single power operation:
  - VDD, VDD2: 1.8 to 3.3V
• LCD Voltage Operation Range (V0/Vout)
  - Programmable V0: 3 to 7V(V0)
  - External power applied: Max. 12V(Vout)
• Interface
  - 6800-4bit / 8bit interface
  - 8080-4bit / 8bit interface
  - 3-line serial interface
  - 4-line serial interface
  - I2C interface
• Support display mode:
  - 8-COM x 100-SEG and 80 ICON
  - 16-COM x 100-SEG and 80 ICON
  - 24-COM x 80-SEG and 80 ICON
• 10,240-bit Character Generator ROM (CGROM) stores 256 character fonts
• 64 x 8-bit Character Generator RAM (CGRAM)
• 80 x 8-bit Display RAM (80 characters max.)
• 16 x 5 bit ICON RAM
• Variable instruction functions:
  clear display, return home, display ON/OFF,
  cursor ON/OFF, character blink, cursor shift,
  display shift, double height font, ICON control and character generation RAM
• Reset circuit through an external reset pin
• Internal oscillator or external clock
• Built-in low power consumption voltage booster, regulator and follower circuit
• Built-in high-accuracy voltage regulator:
  - Programmable output range: 3~7V
• COM/SEG direction selectable by instruction
• Selectable CGRAM/CGROM size
• Package Type: COG