LC74785 Просмотр технического описания (PDF) - SANYO -> Panasonic

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LC74785

On-Screen Display Controller LSI

SANYO -> Panasonic 

Ordering number : EN5520A

CMOS LSI

LC74785, LC74785M

On-Screen Display Controller LSI

Overview

The LC74785 and LC74785M are on-chip EDS CMOS

LSIs for on-screen display, a function that displays

characters and patterns on a TV screen under

microprocessor control. These LSIs support 12 × 18 dot

characters and can display 12 lines by 24 characters of

text.

Features

• Display format: 24 characters by 12 rows (Up to 288

characters)

• Character format: 12 (horizontal) × 18 (vertical) dots

• Character sizes: Three sizes each in the horizontal and

vertical directions

• Characters in font: 128

• Initial display positions: 64 horizontal positions and 64

vertical positions

• Blinking: Specifiable in character units

• Blinking types: Two periods supported: About 1.0

second and about 0.5 second

• Blanking: Over the whole font (12 × 18 dots)

• Background color

— Background coloring: 8 colors (internal synchronization

mode): 4fsc

— Background coloring: 6 colors (internal synchronization

mode): 2fsc

• Line background color

— Can be set for 3 lines

— Line background coloring: 8 colors (internal synchro-

nization mode): 4fsc

— Line background coloring: 6 colors (internal synchro-

nization mode): 2fsc

• External control input: 8-bit serial input format

• On-chip sync separator circuit

• EDS support

• Video output

— NTSC-format composite output

• Package

24-pin plastic DIP (300 mil)

24-pin plastic SOP (375 mil)

Package Dimensions

unit: mm

3067-DIP24S

[LC74785]

unit: mm

3045B-MFP24

[LC74785M]

SANYO: DIP24S

SANYO: MFP24

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

63097HA (OT) No. 5520-1/24

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