42-Segment 1/3 or 1/4 Duty LCD Driver

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJU6535 is a 1/3 or 1/4 duty LCD driver for segment type LCD panel with key scan function transmitting the 30 keys maximum scanned data (6 x 5 = 30) to CPU.

The NJU6535 chooses numbers of common, key scan, and general purpose ports by instructions. Therefore, it drives 126 segments at 1/3 duty in use of 3 commons and 42 segments or 164 segments at 1/4 duty in use of 4 and 41. Also it provides 4 general purpose output ports maximum to drive LEDs or others directly.

Furthermore, the NJU6535 can select a LCD driving voltage out of 8 steps voltage by the instruction to adjust the display contrast of LCD panel.

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  • 42-segment Drivers
  • Programmable Duty Ratio (1/3 Duty:126-segment (Maximum), 1/4 Duty:164-segment (Maximum))
  • 30-key Scan Function(6X5 matrix) (Needless for anti-reverse current diodes in key scan)
  • Programmable Bias Ratio (1/2, 1/3 bias)
  • Output Port for LED (maximum 4 LED)
  • Serial Interface (SI, SO, SCL, CS)
  • Useful Instruction set
  • Incorporated LCD Driving Voltage Generator Circuits
  • Electrical Variable Resistance (8-step)
  • Logic Operating Voltage (4.5 to 5.5V)
  • LCD Driving Voltage (to 5.5V)
  • Package Outline (QFP64-H1)
  • C-MOS Technology (Substrate:P)
Features Similar products
Drives Number of Segments 42  

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On-chip Oscillator Yes  
Control Lines Required Yes  
Operating Temperature (°C) -40 to 85  
Package QFP-64-H1