CMOS LSI

Ordering number : EN4828A

63096HA (OT)/N1594TH (OT) B8-1326, 1328 No. 4828-1/16

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

Asynchronous Silicon Gate 1/2 Duty LCD Driver

with On-Chip Key Input Function

LC75852E, 75852W

Overview

The LC75852E and LC75852W are 1/2 duty dynamic

LCD display drivers. In addition to being able to directly

drive LCD panels with up to 90 segments, they can also

control up to four general-purpose output ports. These

products also include a key scan circuit which allows

them to accept input from keypads with up to 30 keys.

This allows end product front panel wiring to be

simplified.

Features

• Up to 30 key inputs (Key scan is only performed when a

key is pressed.)

• 1/2 duty – 1/2 bias (up to 90 segments)

• Sleep mode and the all segments off function can be

controlled from serial data.

• Segment output port/general-purpose output port usage

can be controlled from serial data.

• Serial data I/O supports CCB format communication

with the system controller.

• High generality since display data is displayed directly

without decoder intervention

• Reset pin that can establish the initial state.

Package Dimensions

unit: mm

3159-QFP64E

unit: mm

3190-SQFP64

Specifications

Absolute Maximum Ratings at Ta = 25°C, V

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

V

V

DD

–0.3 to +7.0

V

Input voltage

V

IN

OSC, CE, CL, DI, RES, KI1 to KI5

–0.3 to V

V

Output voltage

V

OUT

OSC, DO, S1 to S45, COM1, COM2, KS1 to KS6, P1 to P4

–0.3 to V

V

I

S1 to S45

100

µA

Output current

I

COM1, COM2, KS1 to KS6

1

mA

I

P1 to P4

5

mA

Allowable power dissipation

Pd max

Ta = 85°C

200

mW

Operating temperature

Topr

–40 to +85

°C

Storage temperature

Tstg

–55 to +125

°C

• 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.

[LC75852E]

SANYO: QIP64E

SANYO: SQFP64

[LC75852W]