STI5251 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STI5251' PDF : 4 Pages View PDF
Introduction
1
Introduction
STi5251
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
Serial Flash-based secure boot and code
storage, integrated voltage regulator,
23 mm x 23 mm x 1.7 mm PBGA package
ST40-300 applications CPU @450 MHz, 32 K I
cache, 32 K D cache
STMicroelectronics' DELTA video decoding
system with ST231 processor
Dual USB 2.0 hosts, Ethernet MAC with
MII/RMII and TMII, SD-MMC/SDIO
Low power process, design and architecture
Advanced 2D graphics and display subsystem
and 480p/576p display output
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
Enables further BOM optimization and cost
reduction of advanced decoding SD STBs
Up to 800 DMIPs superscalar performance from a
single CPU core, using standard tools and
operating systems (Linux, OS21)
Decoding of advanced standard 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
Extensive high-speed connectivity for the widest
range of STB peripherals, such as Flash drives,
external HDDs, home network controllers (for
example MoCA, Wi-Fi), memory cards
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
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
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Doc ID 022143 Rev 1
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