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BU2871FS - On-screen Display

Download the BU2871FS datasheet PDF. This datasheet also covers the BU2878FS variant, as both devices belong to the same on-screen display family and are provided as variant models within a single manufacturer datasheet.

Description

Pin No.

The synchronizing signal is used to determine the presence or absence of a video signal, and the result is output on this pin (sync detect).

Pin5 is "L" when a signal is detected, and "H" when no signal is detected.

Features

  • 1)10 line X 24 character display. 2)64 (BU2878FS) or 128 (BU2871FS) character types. 3)For each line, the character size can be selected as either 1X or 2 X . 4)Characteroutputfor composite video is white with black border. 5)Background color can be either white black or blue (black or white with PAL systems).
  • A b s o l u t e maximum ratings (Ta=25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol Vcc 6)Built-in synchronous separatio.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (BU2878FS_Rohm.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number BU2871FS
Manufacturer ROHM
File Size 282.38 KB
Description On-screen Display
Datasheet download datasheet BU2871FS Datasheet

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Full PDF Text Transcription

Click to expand full text
Multimedia ICs On-screen display for VCRs BU2878FS/BU2871FS The BU2878FS and BU2871 FS are character generator ICs for pattern display use in VCRs and televisions. The IC circuit is made upofavideo signal generator, analog switch, synchronization separator circuit, and synchronization signal detect circuit. The display RAM can store is 10 linesX24 characters, and the on-chip character data ROM can store either 64 or 128 diff9rent characters. •Applications VCRs •Features 1)10 line X 24 character display. 2)64 (BU2878FS) or 128 (BU2871FS) character types. 3)For each line, the character size can be selected as either 1X or 2 X . 4)Characteroutputfor composite video is white with black border. 5)Background color can be either white black or blue (black or white with PAL systems).
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