128-Common X 132-Segment Bitmap LCD Driver

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJU6679 is a 128-common×132-segment bit map LCD driver to display graphics or characters.

It contains 25,344 bits display data RAM, microprocessor interface circuits, instruction decoder, and common and segment drivers.

An image data from CPU through the serial or 8-bit parallel interface are stored into the 25,344 bits internal display data RAM and are displayed on the LCD panel through the commons and segments drivers. The NJU6679 displays 128×132 dots graphics or 8-character 8-line by 16×16 dots character.

The NJU6679 contains a built-in OSC circuit for reducing external com- components. And it features Partial Display Function containing selectable ponents. active display block(s) (two blocks max.) and optimizing the duty cycle ratio. This function dramatically reduces the operating current, setting the optimum boosted voltage combined with a programmable voltage booster circuit and an electrical variable resister. As result, it reduces the operating current.

The operating voltage from 2.4V to 3.6V and low operating current are suitable for small size battery operation items.

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  • Direct Correspondence of Display Data RAM to LCD Pixel
  • Display Data RAM (25,344 bits ;(1.5 times over than display size))
  • LCD drivers (128-common and 132-segment)
  • Direct connection to 8-bit Microprocessor interface for both of 68 and 80 type MPU
  • Serial Interface
  • Partial Display Function (Two limited active display blocks setting. Duty ratio set automatically)
  • Easy Vertical Scroll by setting the start line address of over size display data RAM
  • Programmable Bias selection (1/4,1/5,1/6,1/7,1/8,1/9,1/10,1/11 bias)
  • Common Driver Order Assignment by mask option (Version C0 to C103(Pin name): NJU6679A Com0 to Com127, NJU6679B Com127 to Com0)
  • Useful Instruction Sets (Display ON/OFF Cont, Display Start Line Set, Page Address Set, Column Address Set, Status Read, Display Data Read/Write, Inverse Display, All On/Off, Partial Display, Bias Select, n-Line Inverse, Voltage Booster Circuits Multiple Select(Maximum 5-time), Read Modify Write, Power Saving, ADC Select, etc.)
  • Power Supply Circuits for LCD (Programmable Voltage Booster Circuits(5-time Maximum, Voltage boosting polarity:Negative voltage(V VDD DD Common) Common)),Regulator, Voltage Follower (×4))
  • Precision Electrical Variable Resistance
  • Low Power Consumption
  • Operating Voltage (2.4V to 3.6V)
  • LCD Driving Voltage (6.0V to 18V)
  • C-MOS Technology (Substrate:N)
  • Package Outline (Bumped Chip)
Features Similar products
Drives Number of Segments 132  

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On-chip Oscillator Yes  
Control Lines Required Yes  
Number of Characters 8  
Operating Temperature (°C) -30 to 80  
Package Chip