80608HKIM B8-8317 / 92299TH(OT) No.6235-1/15

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

device, the customer should always evaluate and test devices mounted in the customer

equipment.

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.

LC75844M

Overview

The LC75844M is a 1/4 duty general-purpose LCD driver that can be used for frequency display in electronic tuners

under the control of a microcontroller. The LC75844M can drive an LCD with up to 88 segments directly. The

LC75844M can also control up to 4 general-purpose output ports. Since the LC75844M uses separate power supply

systems for the LCD drive block and the logic block, the LCD driver block power-supply voltage can be set to any

voltage in the range 2.7 to 6.0 volts, regardless of the logic block power-supply voltage.

Application

• Car, Home frequency display

Features

• Support for 1/4 duty 1/2 bias or 1/4 duty 1/3 bias drive of up to 88 segments under serial data control.

• 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 switching between the segment output port and the general-purpose output port functions

• High generality, since display data is displayed directly without decoder intervention.

• Independent VLCD for the LCD driver block (VLCD can be set to any voltage in the range 2.7 to 6.0 volts,

regardless of the logic block power-supply voltage.)

• The INH pin can force the display to the off state.

• RC oscillator circuit

Ordering number : EN6235A

CMOS IC

1/4-Duty General-Purpose

LCD Display Driver