LC74721 Просмотр технического описания (PDF) - SANYO -> Panasonic

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LC74721

On-screen Video Display Controllers for NTSC or PAL-M

SANYO -> Panasonic 

Ordering number:ENN4359A

CMOS IC

LC74721, LC74721M

On-screen Video Display Controllers

for NTSC or PAL-M

Overview

The LC74721 and LC74721M are CMOS, video display

controllers for superimposing text and low-level graphics

onto an NTSC or PAL-M compatible television receiver.

Up to 240, 8 × 8-pixel characters can be displayed under

microprocessor control on a 24-character by 10-line dis-

play.

The LC74721 and LC74721M feature selectable pixel width

and height, and 64 vertical and 64 horizontal display start

positions. It also features a flashing enable bit for each char-

acter position.

The LC74721 and LC74721M operate from a 5V supply.

The LC74721 is available in 24-pin DIPs, and the

LC74721M, in 24-pin MFPs.

Package Dimensions

unit:mm

3067A-DIP24S

[LC74721]

21.0

24

13

1

12

0.9

Features

• Complete text and graphics vide overlay circuitry.

• 64-character internal character generator ROM.

• 8 × 8-pixel characters.

• Three pixel widths and three pixel heights.

• Selectable background color.

• Built-in synchronization check and separation circuitry.

• Approximately 0.5 or 1 s period character flashing op-

tion.

• NTSC or PAL-M format compatibility.

• 8-bit serial input format.

• 5V supply.

• 24-pin plastic DIP (300mil) and 24-pin plastic MFP

(375mil).

(0.71)

1.78

0.48

0.95

unit:mm

3045B-MFP24

24

[LC74721M]

13

1

15.3

12

SANYO : DIP24S

0.15

0.35 1.27

0.67

SANYO : MFP24

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

80101TN (KT)/D2293 JN B8-0377, A8-9893 No.4359–1/12

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