General Description
The NT7605 is a dot matrix LCD controller and driver LSI that can operate with either a 4-bit or an 8-bit microprocessor (MPU). NT7605 receives control character codes from the MPU, stores them in an internal RAM (up to 80 characters), transforms each character code into a 5 X 7, 5 X 8, or 5 X 10 dot matrix character pattern, and then displays the codes on the LCD panel. The built-in Character Generator ROM consists of 256 different character patterns.

FEATUREs
■ Internal LCD drivers
    16 common signal drivers
    100 segment signal drivers
■ Maximum display dimensions
    20 characters * 2 lines or
    40 characters * 1 line
■ Interfaces with 4-bit or 8-bit MPU
■ Versatile display functions provided on chip:
    Display Clear, Cursor Home, Display ON/OFF,
    Cursor ON/OFF, Character Blinking, Cursor
    Shift, and Display Shift
■ Three duty factors, selected by PROGRAM:
    1/8, 1/11, and 1/16
■ Displays Data RAM (DD RAM): 80 X 8 bits
    (Displays up to 80 characters)
■ Character Generator RAM (CG RAM):
    64 X 8 bits for general data,
    8 5 X 8 programmable dot patterns, or
    4 5 X 10 programmable dot patterns
■ Low voltage reset
■ ITO option for A-type and B-type LCD waveform
■ 2 kinds of LCD pads sequence
■ Character Generator ROM (CG ROM):
    2 kinds of CG ROM sizes:
        192 characters:
            160 5 X 8 dot patterns
            32 5 X 10 dot patterns
        240 characters:
            192 5 X 8 dot patterns
            48 5 X 10 dot patterns
    Custom CG ROM is also available
■ Built-in power-on reset function
■ Logic power supply: 2.8V ~ 5.5V
■ LCD driver power supply: V1 ~ V5 divided by Built-in LCD power division resister.
■ Two oscillator operations (Freq. = 500KHz - 540KHz):
    • Built-in RC oscillation
    • External clock
■ CMOS Process
■ Available in COG FORM