data brief for further information contact your local stmicroelectronics sales office. august 2011 doc id 022143 rev 1 1/4 4 STI5251 advanced sd stb processor with integrated dvb-t/dvb-c demodulator features advanced standard definition video decoding (h.264/vc-1/mpeg2/avs) advanced multi-channel audio decoding (mpeg 1, mpeg 2, mp3, dd/dd+, aac/aac+, wma9/wma9pro) linux, windows ce ? and os21 compatible st40 applications cpu (450 mhz) 16-bit ddr1/ddr2 comp atible local memory interface (lmi) embedded dvb-c or dvb-t demodulator multi-stream, dvr capable, transport stream processing flexible st231-based audio decoder flexible st231-based advanced video decoder multi-channel flexib le dma controller extensive connectivity (dual usb controller, ethernet mac/mii/rmii/tmii and sd- mmc/sdio) advanced security and drm support including svp, ms-drm, marlin, divx and dtcp-ip external memory interface (emi) with nand- flash, nor-flash, peripherals support dual smartcard, 4 x uart, 4 x synchronous serial controllers (ssc), soft modem, ir transmitter and receiver, uhf rx/scd 4 x 4 matrix key front panel switch scanner fsm with key de-bounce 23 mm x 23 mm x 1.7 mm package description the STI5251 is a new, cost-effective sd advanced decoding stb soc. the STI5251 is ideally suited to cable, te rrestrial and terrestrial/ip hybrid networks. the STI5251 integrates in a single ic a versatile dvb-c/dvb-t demodulator/fec (user mode selectable), multi- stream transport demux, an st40 applications cpu, a/v decode, video processing, graphics and display, advanced security, stb peripherals, audio/video dacs, digital a/v outputs, usb 2.0 host controller with ph y and ulpi, sdio sd- mmc controller and ethernet gmac controller with /mii/rmii/tmii interface. jtag stb peripherals i/o digital video ed/sd out resets analog out clocks modes pcm i/o s/pdif out external interrupts clock gen system serv peripherals ssc uart mafe pwm infrared smartcard connectivity transport security analog video ed/sd out audio i/o display video i/o transport streams parallel/serial in/out audio decoder st231 cpu video decoder emi spi lmi system interfaces cpu/fpu stbus dual pcm players s/pdif player dacs fdma bdisp blitter usb 2.0 sd-mmc/sdio ethernet demodulator dvb-t/ iq/if in transport streams ddr1/ddr2 serial flash memory flash, sflash nor, nand pcm reader dvb-c/fec www.st.com
introduction STI5251 2/4 doc id 022143 rev 1 1 introduction the STI5251 uses st?s state of the art process technology to provide a cost-effective sd advanced decoding set-top-box soc. it is a highly integrated solution suitable for dvb-c or dvb-t/ip stb markets worldwide. the STI5251 provides a solution for operators to specify a range of cost-effective sd stbs including high-volume broadcast-only zapper stbs, interactive stbs and dual-stream dvr and time-shift capable stbs. content delivery is possible using broadcast and ethernet connectivity (hybrid stbs). the STI5251 is optimized for secure pay-tv applications with integrated dvb, des, aes, tdes and icam descramblers and smartcard interfaces. it also has advanced security features to further safeguard operator and content investment including secure control words, software integrity checking, jtag locking and drm support. the STI5251 offers high-performance cpu and graphics subsystem, which targets the full range of software/ui platforms from basic os/program guide to demanding middlewares, such as mhp. features benefits combines a dvb-c/dvb-t demodulator with stb decoding and display functions this highly integrated soc helps to reduce board area and manufacturing cost, allowing cost effective and small-size stbs to be designed for dvb-c/dvb-t networks serial flash-based secure boot and code storage, integrated voltage regulator, 23 mm x 23 mm x 1.7 mm pbga package enables further bom optimization and cost reduction of advanced decoding sd stbs st40-300 applications cpu @450 mhz, 32 k i cache, 32 k d cache up to 800 dmips superscalar performance from a single cpu core, using standard tools and operating systems (linux, os21) stmicroelectronics' delta video decoding system with st231 processor decoding of advanced st andard definition mpeg2, h.264 and vc-1/wmv9 streams, with the performance and flexibility for web-based content decoding such as flash, divx, mjpeg, xvid and real dual usb 2.0 hosts, ethernet mac with mii/rmii and tmii, sd-mmc/sdio extensive high-speed connectivity for the widest range of stb peripherals, such as flash drives, external hdds, home network controllers (for example moca, wi-f i), memory cards low power process, design and architecture best in class, low-power standby mode, to meet emerging energy standards for stbs. dynamic configuration of power to individual subsystems enables power-efficient active standby modes advanced 2d graphics and display subsystem and 480p/576p display output allows visually appealing user interfaces and video-rich navigation to be offered to consumers, while high-quality progressive output can be watched on the latest displays
STI5251 revision history doc id 022143 rev 1 3/4 2 revision history table 1. document revision history date revision changes 30-aug-2011 1 initial release.
STI5251 4/4 doc id 022143 rev 1 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by two authorized st representatives, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2011 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com
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