Enlarging the Omega family of set-top box decoders, the STi5517 system-on-chip (SoC) claims to set new standards of performance, security, and integration for such devices while retaining backward compatibility. The SoC supports the higher RGB16 graphics specification, and the chip's integrated ST20 CPU operates at speeds up to 180 MHz. Audio options include MP3 decoding, Dolby Digital and Pro Logic decoding; support is also provided for SRS TruSurround virtual surround sound. The IC also integrates a multi-channel DMA engine, making it suitable for use in graphic applications, such as DVB-MHP, browser-based middle wares, and IPTV. Other features of the SoC include a 16-bit, 133-MHz shared-memory interface with support for 64- and 128-bit configurations, an external memory interface supporting six configurable banks of SRAM, flash and DRAM, a MPEG-2 decoder, and a graphics/display unit with five display planes. And to ease migration from existing set-top box designs, the STi5517 is pin compatible with the earlier STi5516 and supports legacy cable applications. Price is $15 each/100,000. STMICROELECTRONICS INC., Lexington, MA. (781) 861-2650.
Company: STMICROELECTRONICS INC.
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