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Ordering number : ENN7135

CMOS IC

LC75863E, 75863W

1/3 Duty LCD Display Drivers with Key Input Function

Overview

The LC75863E and LC75863W are 1/3 duty LCD display

drivers that can directly drive up to 75 segments and can

control up to four general-purpose output ports. These

products also incorporate a key scan circuit that accepts

input from up to 30 keys to reduce printed circuit board

wiring.

Features

• Key input function for up to 30 keys (A key scan is

performed only when a key is pressed.)

• 1/3duty - 1/2bias and 1/3duty - 1/3bias drive schemes

can be controlled from serial data (up to 75 segments).

• Sleep mode and all segments off functions that are

controlled from serial data.

• Segment output port/general-purpose output port

function switching that is controlled from serial data.

• Serial data I/O supports CCB format communication

with the system controller.

• Direct display of display data without the use of a

decoder provides high generality.

• Independent VLCD for the LCD driver block (VLCD can

be set to in the range VDD-0.5 to 6.0 volts.)

• Provision of an on-chip voltage-detection type reset

circuit prevents incorrect displays.

• RC oscillator circuit.

Package Dimensions

unit: mm

3156-QIP48E

1.5

36

37

[LC75863E]

17.2

14.0

1.0 0.35

1.6

1.5

25

24

0.15

48

1

13

12

0.1

2.7

0.8 15.6

SANYO: QIP48E

unit: mm

3163A-SQFP48

[LC75863W]

9.0

7.0

0.75 0.5 0.18

36

37

25

0.75 0.15

24

• 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.

48

1

13

12

0.5 0.5

SANYO: SQFP48

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft’s

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

SANYO Electric Co.,Ltd. Semiconductor Company

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

D2001TN (OT) No. 7135-1/24

VLCD1

VLCD2

LC75863E, 75863W

VLCD

To the common segment driver

Excluding these resistors.

1. When CL is stopped at the low level

CE

VIH1

CL 50%

VIL

VIH1

DI

VIL

tr

tøH tøL

tf

tds tdh

DO

Figure 1

VIH1

VIL

tcp tcs

tch

tdc

D0 D1

tdr

2. When CL is stopped at the high level

CE

tøL tøH

CL

tf tr

DI

tds tdh

DO

VIH1

50%

VIL

VIH1

VIL

VIH1

tcp tcs

D0

Figure 2

D1

tdc

VIL

tch

tdr

No. 7135-4/24

Serial Data Input

1. When CL is stopped at the low level

LC75863E, 75863W

CE

CL

DI 0 1 0 0 0 0 1 0 D1 D2

B0 B1 B2 B3 A0 A1 A2 A3

DO

D34 D35 D36 D37 D38 D39 0 0 0 0 0 0 0 S0 S1 K0 K1 P0 P1 P2 SC DR 0

Display Data

Control Data

DD

0 1 0 0 0 0 1 0 D40 D41

D73 D74 D75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

B0 B1 B2 B3 A0 A1 A2 A3

Display Data

Fixed Data

DD

Note: B0 to B3, A0 to A3 ...... CCB address

DD ................................ Direction data

2. When CL is stopped at the high level

CE

CL

DI 0 1 0 0 0 0 1 0 D1 D2

B0 B1 B2 B3 A0 A1 A2 A3

DO

D34 D35 D36 D37 D38 D39 0 0 0 0 0 0 0 S0 S1 K0 K1 P0 P1 P2 SC DR 0

Display Data

Control Data

DD

0 1 0 0 0 0 1 0 D40 D41

D73 D74 D75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

B0 B1 B2 B3 A0 A1 A2 A3

Display Data

Fixed Data

DD

Note: B0 to B3, A0 to A3 ...... CCB address

DD ................................ Direction data

CCB address ........ 42H

D1 to D75 .............. Display data

S0,S1 .................... Sleep control data

K0,K1 .................... Key scan output/segment output selection data

P0 to P2 ................ Segment output port/general-purpose output port selection data

SC ........................ Segment on/off control data

DR ........................ 1/2 bias or 1/3 bias drive selection data

No. 7135-7/24

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