LC75897PW Datasheet, PDF (1/34 Pages) Sanyo Semicon Device – 1/3, 1/4-Duty General-Purpose LCD Display Driver

Ordering number : EN*A0549
CMOS IC
LC75897PW ^{1/3, 1/4-Duty General-Purpose}
LCD Display Driver
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.
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 a trademark of SANYO Electric Co., Ltd.
• CCB is SANYO's original bus format and all the bus addresses are controlled by SANYO.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
41807HKIM No.A0549-1/34