GENERAL DESCRIPTION

The ST7093 dot-matrix liquid crystal display controller can drive 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 4bit, 8 bit or 4 pin clock synchronized serial bus interface. For 4 bit and 8 bit bus interface both 68 series and 80 series type are available. Since all the functions such as display RAM, character generator, liquid crystal driver, oscillator and voltage control functions 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.

FEATURES

● CGROM :10240 bits(256chars 5 x 8 dots)

CGRAM :320 bits(8 chars 5 x 8 dots)

DDRAM :64 bytes(16 x 4 )

ICONRAM :80 bits

● Low power operation support:

-- 2.4 to 3.6V

● Wide range of LCD driver power

-- 3.0 to 7.0V

● 4-bit or 8-bit MPU interface for both 68 and 80

series

● 4 pin clock synchronized serial interface

● COM/SEG bi-directional setting

● Voltage converter/regulator/follower/bias circuit built in

● 26 common x 80 segment liquid crystal display driver

● 32 steps electronic volume control

● Wide range of instruction functions:

return home, display on/off, cursor on/off, display

character blink, double height, line shift, function

set, power and bias control

● Hardware reset pin available

● Internal oscillator or external clock

● Power save mode for low power consumption

● Bare Chip available