LC75853NW 데이터시트 PDF

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Ordering number : ENN4967C

CMOS IC

LC75853NE, 75853NW

1/3 Duty LCD Display Drivers

with Key Input Function

Overview

The LC75853NE and LC75853NW are 1/3 duty LCD

display drivers that can directly drive up to 126 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.)

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

can be controlled from serial data (up to 126 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.

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

circuit prevents incorrect displays.

• 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.

Package Dimensions

unit: mm

3159-QFP64E

1.0

48

49

[LC75853NE]

17.2

14.0 1.6

0.8 0.35 1.0

33

32

0.15

64

1

unit: mm

3190-SQFP64

17

16

0.1

2.7

15.6 0.8

SANYO: QFP64E

1.25

48

49

[LC75853NW]

12.0

10.0

0.5 0.18

1.25

33

32

0.15

64

1

17

16

0.5 0.5

SANYO: SQFP64

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

O3099TH (OT)/23099HA (OT)/N3095HA (OT)/52295TH (OT) No. 4967-1/24

1. When CL is stopped at the low level

LC75853NE, 75853NW

2. When CL is stopped at the high level

Figure 2

No. 4967-4/24

Serial Data Input

1. When CL is stopped at the low level

LC75853NE, 75853NW

Display data

Control data

Display data

Fixed data

Note: DD: Direction data

2. When CL is stopped at the high level

Display data

Display data

Fixed data

Control data

Display data

Fixed data

Display data

Fixed data

Note: DD: Direction data

• CCB address......42H

• D1 to D126........Display data

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

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

• P0, P1 ................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. 4967-7/24

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