LC7470 データシートの表示（PDF） - SANYO -> Panasonic

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LC7470

Character and Pattern Display Control IC

SANYO -> Panasonic 

Ordering number:ENN3725

CMOS IC

LC7470

Character and Pattern Display Control IC

Overview

Character and pattern display control IC for TV screen. A

character dot configuration is 12 × 18. The IC has 64 inter-

nal character ROMs and displays up to 288 characters (24

characters × 12 lines) on a TV screen. It can be controlled

by a microcontroller.

Package Dimensions

unit:mm

3059-DIP22S

[LC7470]

22

12

Function and Applications

• Screen Display Mode: 24 characters × 12 lines

• Number of display characters: 288 characters (max.)

• Display control ROM (line ROM):

64 lines (line control: 24-character line)

• Display RAM:

176 characters (used for specifying variable characters)

• Character configuration:

12 (horizontal) × 18 (vertical) dots

• Number of character types: 64 types

• Character size:

Horizontal direction: 4, Vertical direction: 4

• Display start position:

Horizontal direction: 64, Vertical direction: 64

• Blinking mode: Character blinking

• Display ON/OFF mode:

ON/OFF cycle; 1.0 second and 0.5 second. Duty cycle;

25%, 50% and 75%

• Blanking mode: Entire font area (12 × 18 dots)

• Background colors: 4 (at internal SYNC. operation mode)

• External control input: Serial data input

• Synchronous signal: Selectable: Internal and External

• Internal SYNC. separation circuit available.

• Video output: NTSC-format composite output

• Superimpose function:

Superimposes character output on composite video

output

1

11

21.2

0.95

0.48

1.78

1.7

SANYO : DIP22S

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

71901TN (KT)/8290JN, TA, KI (AC) No.3725–1/13

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