NJU6680 Datasheet | New Japan Radio

DESCRIPTION The NJU6680 is a 128-mon x 128-segment 4-level gray scale bit map LCD driver to display graphics or characters. It contains 32,768-bit display data RAM, microprocessor interface circuits, instruction decoder, and mon and segment drivers. An image data from CPU through the serial or 8-bit parallel interface are stored into the 32,768-bit internal display data RAM and are displayed on the LCD panel through the mons and segments drivers. The NJU6680 features 4-level gray scale display function creating 4 types of gray scale (white / light gray / dark gray / black) and black & white display function. The NJU6680 contains a built-in OSC circuit for reducing external ponents. And it features Partial Display Function containing selectable active display block and optimizing the duty cycle ratio. This function dramatically reduces the operating current, setting the optimum boosted voltage bined with a programmable voltage booster circuit and an electrical variable resistor. As result, it reduces the operating current. The operating voltage from 2.2V to 3.6V and low operating current are suitable for small size battery operation items. PACKAGE OUTLINE NJU6680CL FEATURES Direct Correspondence of Display Data RAM to LCD Pixel Display Method - 4-level Gray Scale / Black & White Display Data RAM - 32,768 bits ;( 128- x 128-Seg) x 2bit LCD drivers - 128-mon and 128-segment Direct connection to 8-bit Microprocessor interface for both of 68 and 80 type MPU Serial Interface (SI, SCL, RS, CS) Partial Display Function Easy Vertical Scroll by setting the start line address of over size display data RAM Programmable Bias ratio selection ; 1/5, 1/6, 1/7, 1/8, 1/9, 1/10, 1/11, 1/12 bias Useful Instruction Sets Status read, Display data write, Column address set, Page address set, Initial display line set, Initial 0 line set, Display ON/OFF, Entire display ON/OFF, Reverse display ON/OFF, N-line inversion set, N-line inversion OFF, ADC select, scan direction select,...