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HD cable/terrestrial STB processor with integrated demodulators and low power standby controller
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The STiH271EL uses the latest process technology to provide a cost-effective, feature rich, highly integrated SoC for set-top boxes (STBs). It is targeted at the advanced decoding STB market across cable and terrestrial networks, and is suitable for operator markets and retail markets worldwide.

The STiH271EL provides a solution for operators and manufacturers to specify and quickly deploy a range of cost-effective, high-performance zapper STBs. Fast time to market is enabled by the STiH271EL’s pre-defined profile with Dolby™ audio enabled (license required), without Rovi™ and without advanced security features.

The STiH271EL integrates a high-performance dual mode, cable/terrestrial receiver, supporting DVB-C or DVB-T reception, channel demodulation, and forward error correction (FEC). The DVB-C receiver is compliant with ITU-T J.83 Annex A/C, and the DVB-T receiver is compliant with ETSI EN-300744 v1.5.1, Nordig Unified (v2.2.1) and DTG 7.2.

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Errata Sheet
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Data Brief

Key Features

  • ST40 applications CPU with 256 KB L2 cache
  • 16-bit LMI supporting DDR2/DDR3
  • Decoding of H.264, MPEG2, VC-1 and AVS HD video streams
  • 3DTV decoding and display compatible with HDMI 1.4b
  • Extensive connectivity (2 × USB 2.0 ports; Ethernet MII/RMII/TMII port; SD/MMC card port)
  • Low-power process and architecture
  • Integrated low power standby controller
  • High-quality video resizing and de-interlacing
  • Targets two layer PCBs for cost-effective zapper STB applications
  • Integrates dual mode DVB-T/DVB-C demodulation and FEC
  • Integrated Ethernet PHY

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1800: HD cable/terrestrial STB processor with integrated demodulators and low power standby controller
1.0 73 KB

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Sample & Buy

Part Number Marketing StatusPackagePacking TypeOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STIH271ELKBActiveFPBGA761Tray-No availability reported, please contact our Sales officeEcopack2PDF

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.