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LCD Drivers

Static 1/2 1/3 1/4 Duty LCD Driver

  • LCD driving circuit (Max. 120outputs (4 outputs as for general purpose ports))
  • Programmable Duty Ratio (
    Static :Driving max. 120 segments
    1/2 Duty Ratio :Driving max. 240 segments
    1/3 Duty Ratio :Driving max. 360 segments
    1/4 Duty Ratio :Driving max. 480 segments)
  • General Purpose Port (Driving max 4outputs (SEG1-SEG4:4outputs as for general purpose ports))
  • Key Scan Function (Max 30Key(5-out x 6-in matrix))
  • Programmable Bias Ratio (1/2, 1/3 bias ratio (Static:1/1))
  • Serial Data Transfer (Shift clock max. 2MHz)
  • Oscillator (CR oscillation with external resistor and capacitance, or external oscillation
    signal input)
  • Operating Wave Form (A wave form, B wave form)
  • Electrical Variable Resistance (8-steps)
  • Power ON Initialize Circuit On-Chip
  • Useful Instruction Set (Duty select, Bias select, Wave form select, Oscillation select, Segment or general
    purpose ports select, Segment or Key scan output select, E.V.R select,Display ON/OFF, Key scan ON/OFF)
  • Operating Voltage (3.0V / 5.0V)
  • C-MOS Technology (P-Sub)
  • Package Outline (LQFP144-L1 20mm*20mm t=1.7mm(max.) Pin-pitch=0.5mm)
General Description
The NJU6541B is a Static or 1/2,1/3,1/4 duty segment type LCD driver. It incorporates 4 common driver circuits and 120 segment driver circuits. The NJU6541B can drive maximum 480 segments in 1/4 duty ratio, and can use 3-Wire serial I/F.In addition, the NJU6541Bs useful functions meet a wide range of applications.
Package Information
Part Number Package OutlinePinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
144Sn2Bi1400Yes-YesDry pack 23
Sample & Buy
Part NumberPackagesStatusPacking SpecificationSampleBuy
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