88-Common X 272-Segment Bitmap LCD Driver

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJU6657 is a bitmap LCD driver to display graphics or characters.

It contains 23,936 bits display data RAM, microprocessor interface circuits, instruction decoder, 88-common and 272-segment drivers.

The bit image display data is transferred to the display data RAM by serial or 8-bit parallel interface.

88 x 272 dots graphics or 17-character 5-line by 16 x 16 dots character with icon are displayed by NJU6657 itself.

The NJU6657 contains a built-in OSC circuit for reducing external components.

The wide operating voltage from 2.7 to 5.5V and low operating current are suitable for battery-powered applications.

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  • Direct Correspondence between Display Data RAM and LCD Pixel
  • Display Data RAM (23,936 bits)
  • 225 LCD Drivers (88-common and 272-segment)
  • Direct Microprocessor Interface for both of 68 and 80 type MPU
  • Serial Interface (SDA, SCL, A0, CSB)
  • Programmable Bias selection (1/5,1/7,1/8,1/9,1/10 bias)
  • Useful Instruction Set (Display On/Off Cont, Initial Display Line Set, Page Address Set, Column Address Set, Status Read, Display Data Read/Write, ADC Select, Common Direction Register Set, Inverse Display, Entire Display On/Off, Partial Select, n-line Inverse Drive Register Set, Dummy Period Set, Read Modify Write, End, Internal Oscillation Circuit ON/OFF, Oscillation Frequency Set, Bias Select, Power Control setter Register Set, Voltage Booster Circuits Multiple Select, Voltage Booster Circuits Clock Select, Temperature Sensor ON/OFF, Soft Reset, Power Save.)
  • Power Supply Circuits for LCD Incorporated (Voltage Booster Circuits (12-time Maximum), Voltage Adjust Circuits, Voltage Follower x 4)
  • High Precision Voltage Regulator Incorporated (VREF=±3%, Ta=25O°C)
  • Precision Electrical Variable Resistance (400-step)
  • VLCD Temperature Coefficient (-0.00 to -0.15%/°C)
  • Low Power Consumption (130uA(typ.))
  • Operating Voltage (All the voltages are based on VSS=0V.)
  • - Logic Operating Voltage (VDD=2.7V to 5.5V)- Voltage Booster Operating Voltage (VEE=VDD to 5.5V)- LCD Driving Voltage (VLCD= 4.8 to 28.8V(External Voltage: 36.0V)))
  • Rectangle outlook for COG
  • Package Outline (Bump-chip)
  • C-MOS Technology (Substrate:P))
Features Similar products
Drives Number of Segments 272  

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On-chip Oscillator Yes  
Control Lines Required Yes  
Number of Characters 17  
Operating Temperature (°C) -40 to 105  
Package Chip