Rolsen RDV-750, Руководство по обслуживанию

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CIRCUIT OPERATIONAL DESCRIPTION
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4. EEPROM : S524C20D21(HT24LC02)
This stores the information related to setup of DVD menus. This can read and write
the optional information such as OSD, voice, language option after function for
subtitle etc, the aspect or method of TV display, video option like display function
and audio, screen saver, parental function through the I
² C transmission method.
Description
The S524C20D21serial EEPROM has a 2,048-bit (256 byte) capacity, supporting
the standard I
² C ™ -bus serial interface. It is fabricated using Samsung most
advanced CMOS technology. One of its major feature is a hardware-based write
protection circuit for the entire memory area. Hardware-based write protection is
controlled by the state of the write-protect (WP) pin. Using one-page write
mode, you can load up to 16 bytes of data into the EEPROM in a single write
operation. Another significant feature of the S524C20D21is its support for fast
mode and standard mode.
S524C20D21 Block Diagram