Overview

The LC75874E and LC75874W are 1/4-duty general-

purpose microprocessor-controlled LCD driver that can be

used in applications such as frequency display in products

with electronic tuning. In addition to being able to drive

up to 264 segments directly, the LC75874E and

LC75874W can also control up to 8 general-purpose

output ports.

Since the LC75874E and LC75874W use 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 V, regardless of

the logic block power-supply voltage.

Features

• Support for 1/4-duty 1/2-bias or 1/4-duty 1/3-bias drive

techniques under serial data control (up to

264 segments)

• Serial data input supports CCB format communication

with the system controller.

• Serial data control of the power-saving mode based

backup function and the all segments forced off

function.

• Serial data control of switching between the segment

output port and general-purpose output port functions.

• High generality, since display data is displayed directly

without the intervention of a decoder circuit.

be set to any voltage in the range 2.7 to 6.0 V,

regardless of the logic block power-supply voltage.)

• The INH pin allows the display to be forced to the off

state.

• RC oscillator circuit

Package Dimensions

unit: mm

3174-QFP80E

unit: mm

3220-SQFP80

CMOS LSI

Ordering number : EN5800

31398RM (OT) No. 5800-1/16

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

LC75874E, 75874W

1/4-Duty General-Purpose LCD Display Driver

[LC75874E]

SANYO: QFP80E

[LC75874W]

SANYO: SQFP80

• 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.