NXP Semiconductors ASC8851ET/M2,557

Overview

ASC8851ET/M2,557 from NXP Semiconductors is a full HD IP camera SoC integrating ARM926EJ-S CPU (600 MHz), dual-channel DDR-III/II SDRAM controller (2 × 1 GB), H.264/MPEG-4/MJPEG encoder supporting 1080p @ 45 fps, and 8-channel BT.656 video input - deployed in security IP cameras for real-time multi-stream encoding and local display.

For engineers reviewing the ASC8851ET/M2,557 datasheet, ASC8851ET/M2,557 pinout, ASC8851ET/M2,557 application, or ASC8851ET/M2,557 equivalent, key selection criteria include 12 MPixel raw sensor interface capability, hardware-accelerated digital WDR, ROI/SVC-T H.264 encoding, integrated 10/100/1000 Ethernet MAC, and TFBGA-484 (15 × 15 mm, 0.65 mm pitch) package compatibility with ASC885x reference designs.

Technical Context

The ASC8851ET/M2,557 implements a dedicated image processing pipeline with auto exposure, auto white balance, photometric lens correction, and motion detection across 16 windows - all executed in hardware without CPU intervention. Its H.264 encoder supports Baseline/Main/High Profiles with CABAC/CAVLC, up to 2 reference frames, and SVC-T for temporal scalability across four resolution/fps tiers.

Video input accepts 16-bit raw Bayer/CMYG at up to 180 MHz pixel clock via 8-channel BT.656 or single-channel BT.1120; output delivers 24-bit RGB or BT.1120 at 1080p @ 60 fps. The dual 16-bit SDRAM channels operate at 400 MHz, supporting up to 2 GB total DDR-III memory with ECC-capable addressing.

Key Specifications

Pinout & Package

ASC8851ET/M2,557 is housed in a compact TFBGA-484 package (15 mm × 15 mm, 0.65 mm ball pitch), thermally optimized for IP camera thermal envelopes and compatible with standard reflow profiles for industrial assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar IP camera SoC applications.

Compared with ASC8850ET/M2,557 and TI DM388AAARD, the ASC8851ET/M2,557 uniquely combines 12 MPixel raw sensor interface, hardware digital WDR, and full ONVIF Profile T compliance in a single TFBGA-484 package - reducing system latency by 35 ms versus DSP-based alternatives and eliminating external ISP dependency.

Availability

ASC8851ET/M2,557 is available at Aetrix Electronics and suitable for security IP cameras, video conferencing endpoints, video door phones, and industrial vision inspection systems requiring stable component supply, long-term lifecycle assurance, and qualified industrial temperature grade (-40°C to +85°C).

Supply support for ASC8851ET/M2,557 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with core expertise in RF, analog, security, and embedded processing.

The ASC885x product line was engineered specifically for intelligent IP camera applications - integrating imaging, encoding, networking, and security functions into a single chip to replace multi-IC camera designs and accelerate time-to-market for ONVIF-compliant devices.

FAQ

What is the maximum supported sensor resolution for ASC8851ET/M2,557?

The ASC8851ET/M2,557 supports up to 12 MPixels of raw image data (16-bit Bayer or CMYG format) with pixel clock frequencies up to 180 MHz. This enables direct interfacing with high-resolution CMOS sensors used in premium security and industrial vision applications without requiring external preprocessing. The ASC8851ET/M2,557 processes this data through its integrated ISP before H.264 encoding.

Does ASC8851ET/M2,557 include an integrated Ethernet PHY?

No, the ASC8851ET/M2,557 integrates only a 10/100/1000 Ethernet MAC with MII/GMII/RGMII interfaces. An external PHY (e.g., NXP TJA1100 or Microchip LAN8720A) must be used. The ASC8851ET/M2,557 provides full MDIO management and supports IEEE 1588 precision time protocol synchronization when paired with a compliant PHY.

What video output formats does ASC8851ET/M2,557 support?

The ASC8851ET/M2,557 supports 24-bit RGB output at up to 1080p @ 60 fps, BT.1120 at 1080p @ 60 fps, and BT.656 at 8-bit resolution. These outputs drive HDMI transmitters, HD-SDI serializers, or LCD panels directly. Output timing and format are fully programmable via register configuration, and the ASC8851ET/M2,557 includes built-in sync generators for seamless integration.

Is ASC8851ET/M2,557 compatible with the ASC8850ET/M2,557 at the PCB level?

Yes, the ASC8851ET/M2,557 is pin-to-pin compatible with the ASC8850ET/M2,557 in the TFBGA-484 package. Both share identical power, clock, interface, and GPIO pin assignments. Firmware and hardware designs targeting ASC8850ET/M2,557 can be upgraded to ASC8851ET/M2,557 without PCB revision - enabling performance scaling within the same footprint.

What encryption algorithms are hardware-accelerated in ASC8851ET/M2,557?

The ASC8851ET/M2,557 includes a dedicated cryptographic engine supporting AES-128/192/256, TDES, DES, SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512. These accelerators offload encryption/decryption and hashing from the ARM926EJ-S core, enabling secure video streaming and firmware updates without compromising real-time encoding performance. The ASC8851ET/M2,557 uses these for ONVIF Profile T-compliant TLS and digest authentication.