LC75897PW: LCD Driver, 1/4, 1/3 Duty, General-Purpose

The LC75897PW is 1/3 duty and 1/4 duty general-purpose LCD display driver that can be used for frequency display in electronic tuners under the control of a microcontroller. The LC75897PW can drive an LCD with up to 512 segments directly. The LC75897PW can also control up to 8 general-purpose output ports. The LC75897PW has a built-in of up to three PWM output port channels, which enables to adjust the brightness of the RGB LED backlight.

Features
  • Switching between 1/3 duty and 1/4 duty drive techniques under serial data control.
  • Switching between 1/2 bias and 1/3 bias drive techniques under serial data control.
  • Up to 387 segments for 1/3 duty drive and 512 segments for 1/4 duty drive can be displayed.
  • Switching between the segment, general-purpose, PWM, and clock output ports can be controlled using serial data(up to 8 general-purpose output ports, up to 3-channel PWM output ports, and one clock output port).
  • Serial data input supports CCB format communication with the system controller.
  • Serial data control of the power-saving mode based backup function and all the segments forced off function.
  • Serial data control of the frame frequency for common and segment output waveforms.
  • Serial data control of switching between the RC oscillator operating mode and external clock operating mode.
  • High generality, since display data is displayed directly without decoder intervention.
  • Built-in display contrast adjustment circuit
  • Independent VLCD for the LCD driver block
  • The INH pin can force the display to the off state.
  • RC oscillator circuit
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
1/3, 1/4-Duty General-Purpose LCD DriverLC75897PW/D (303kB)0Sep, 2014
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SPQFP144 20x20 / SQFP144131AD (68.7kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LC75897PW-EActivePb-freeSPQFP-144 / SQFP-144131AD4Tray Foam200$5.5655
Specifications
ProductSegmentsKey DetectionVDD Min (V)VDD Max (V)VLCD Min (V)VLCD Max (V)VI for Interface (V)Operating Temperature (°C)Output PortsPWM OutputsCharacter GeneratorResetContrast AdjustmentControl Command
LC75897PW-E1/4 Duty: 512 (480) 1/3 Duty: 387 (363)2.762.76VDD-40 to 8583Yes
1/3, 1/4-Duty General-Purpose LCD Driver (303kB) LC75897PW
SPQFP144 20x20 / SQFP144 LC75897PW