GENERAL DESCRIPTION

The MSM6555B-xx is a dot matrix LCD controller with 17-dot common driver and 80-dot segment driver comprising a display RAM, character generation ROM, LCD bias generation circuit and control circuit.

The LCD driving bias generation circuit incorporated in the MSM6555B-xx allows LCD bias voltage to be obtained merely by providing a specified capacitance externally.

The MSM6555B-xx can display the arbitrator (arbitrary character) patterned on the LCD panel.

FEATURES

• Serial interface with microcontroller

• Dot matrix LCD controller with 17-dot common driver and 80-dot segment driver (up to 16 digits x 2 lines can be displayed)

• 256 character ROM (5 x 7 dots)

• 1/9 duty (1 line; character + cursor + arbitrator) or 1/17 duty (2 lines; character + cursor, 1 line; arbitrator) display

• LCD driving bias voltage generation circuit

• 80-dot arbitrator

• Low standby current

• Gold bump chip

• Optional when TCP is adopted