LC75854W 데이터시트 PDF

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Ordering number : ENN5066B

CMOS IC

LC75854E, 75854W

1/4 Duty LCD Display Drivers

with Key Input Function

Overview

The LC75854E and LC75854W are 1/4 duty LCD display

drivers that can directly drive up to 164 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.)

• 1/4 duty - 1/2 bias and 1/4 duty - 1/3 bias drive schemes

can be controlled from serial data (up to 164 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

Package Dimensions

unit: mm

3159-QFP64E

1.0

48

49

[LC75854E]

17.2

14.0

1.6

0.8

0.35

1.0

33

32

0.15

64

1

17

16

0.1

2.7

unit: mm

3190-SQFP64

15.6

0.8

SANYO: QFP64E

1.25

48

49

[LC75854W]

12.0

10.0

0.5 0.18

1.25

33

32

0.15

64

1

17

16

• 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.

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)/N3095HA (OT)/52295TH (OT) No. 5066-1/25

1. When CL is stopped at the low level

LC75854E, 75854W

2. When CL is stopped at the high level

Figure 2

No. 5066-4/25

Serial Data Input

1. When CL is stopped at the low level

LC75854E, 75854W

Display data

Control data

Display data

Fixed data

Display data

Fixed data

Note: DD: Direction data

Display data

Fixed data

No. 5066-7/25

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