LC75897PW Datasheet, PDF (1/35 Pages) Sanyo Semicon Device – 1/3, 1/4-Duty General-Purpose LCD Display Driver

LC75897PW
CMOS LSI
1/3, 1/4-Duty General-Purpose
LCD Driver
http://onsemi.com
Overview
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.
SQFP144(20X20)
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
 CCB is ON Semiconductor® ’s original format. All addresses are managed
by ON Semiconductor® for this format.
 CCB is a registered trademark of Semiconductor Components Industries, LLC.
ORDERING INFORMATION
See detailed ordering and shipping information on page 35 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
1
September 2014 - Rev. 0
Publication Order Number :
LC75897PW/D