LC74730M中文資料三洋數(shù)據(jù)手冊PDF規(guī)格書

Overview

The LC74730M is a CMOS LSI for on-screen display, a function that displays characters and patterns on a TV screen under microprocessor control. (The LC74730M supports the S-VCR format.) The characters displayed have an 8 × 8 dots structure and a dot interpolation function is provided. The LC74730M display 10 lines of 24 characters each.

Features

? Screen format: 10 lines × 24 characters (up to 240

characters)

? Character format: 8 (horizontal) × 8 (vertical) (interpolation function provided)

? Character sizes: Three horizontal sizes and 3 vertical

sizes

? Number of characters in font: 64 characters

? Display start position

— Horizontal: 64 positions

— Vertical: 64 positions

? Blinking: In character units

? Types of blinking: Two types with approximately

1.0 sec. and 0.5 sec.

? Background color: Four background colors (in internal

synchronization mode)

(For the PAL-M format: 1 color; blue background)

? External control input: 8-bit serial data input format

? Built-in sync separator circuit

? Built-in synchronization recognition circuit: Recognizes

whether or not external synchronizing signals are

present

? Video output: NTSC and PAL-M format composite

outputs, Y-C output