STI5251 datasheet(1/4 Pages) STMICROELECTRONICS

部件名	STI5251

功能描述	Advanced SD STB processor with integrated DVB-T/DVB-C demodulator

PDF	4 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 4 page

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 compatible 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 flexible 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, terrestrial 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 PHY 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

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