NXP Semiconductors ASC8851ET/M2,551

Overview

ASC8851ET/M2,551 from NXP is a full HD IP camera SoC integrating ARM926EJ-S CPU (600 MHz), dual-channel DDR-III/II SDRAM controller (2×16-bit @ 400 MHz), H.264/MPEG-4/MJPEG encoder supporting 1080p @ 45 fps, and 8-channel BT.656 video input for 12 MPixel raw sensor interfaces. It delivers multi-stream encoding, digital WDR, and AES/SHA encryption in security camera systems.

For engineers reviewing the ASC8851ET/M2,551 datasheet, ASC8851ET/M2,551 pinout, ASC8851ET/M2,551 application, or ASC8851ET/M2,551 equivalent, key selection factors include its 1080p@45fps H.264 encoding capability, 8-channel BT.656 video input, 24-bit RGB video output at 1080p@60fps, dual DDR-III channels, and integrated 10/100/1000 Ethernet MAC with GMII/RGMII support.

Technical Context

The ASC8851ET/M2,551 implements a hardware-accelerated image processing pipeline with digital WDR, auto exposure/white balance, lens distortion correction, and motion detection across 16 windows. Its H.264 encoder supports Baseline/Main/High Profiles with CABAC/CAVLC, ROI encoding, and SVC-T for temporal scalability across four resolution tiers.

It integrates a 600 MHz ARM926EJ-S core with 16 KB I-cache and 16 KB D-cache, runs Linux 2.6, and connects to up to 2 GB total SDRAM via two independent 16-bit DDR-III/II channels operating at 400 MHz. Video input supports 16-bit raw (RGB/CMYG) at ≤180 MHz pixel clock and BT.656 (8-channel), BT.1120, and BT.601 interfaces.

Key Specifications

Pinout & Package

Package: TFBGA-484 (15 mm × 15 mm, 0.65 mm pitch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ASC8850ET/M2,551 and Hi3519A V100, the ASC8851ET/M2,551 provides the highest BT.656 channel count (8), fastest H.264 encoding (1080p@45fps), and most comprehensive digital WDR implementation - making it optimal for premium multi-sensor security cameras demanding maximum video fidelity and interface flexibility.

Availability

ASC8851ET/M2,551 is available at Aetrix Electronics and suitable for security IP cameras, industrial vision systems, and video conferencing equipment requiring stable component supply, long-term lifecycle support, and consistent thermal/power behavior across production batches.

Supply support for ASC8851ET/M2,551 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The ASC885x family, including ASC8851ET/M2,551, was designed specifically for full HD IP camera applications requiring integrated image processing, multi-format video encoding, and robust network interfacing in compact form factors.

FAQ

What is the maximum video resolution and frame rate supported by the ASC8851ET/M2,551 for H.264 encoding?

The ASC8851ET/M2,551 supports H.264 encoding up to 1080p resolution at 45 frames per second in High Profile with CABAC entropy coding. This capability is confirmed for the M2 version in NXP documentation and applies to single-stream operation with baseline, main, or high profile compliance and up to two reference frames for motion estimation.

Does the ASC8851ET/M2,551 support BT.1120 video input, and what is its role in the imaging pipeline?

Yes, the ASC8851ET/M2,551 supports BT.1120 video input as specified for the M2 version. It serves as a high-bandwidth parallel interface for connecting HD-SDI receivers or HDMI transmitters, enabling direct ingestion of 1080p60 YCbCr 4:2:2 data into the image processing pipeline without intermediate conversion.

How many DDR memory channels does the ASC8851ET/M2,551 support, and what is the maximum total capacity?

The ASC8851ET/M2,551 supports two independent 16-bit DDR memory channels, each configurable for DDR-II (up to 512 MB) or DDR-III (up to 1 GB), yielding a maximum total SDRAM capacity of 2 GB. Both channels operate at up to 400 MHz, as documented in the ASC885x technical specifications for M2 versions.

What cryptographic algorithms are hardware-accelerated in the ASC8851ET/M2,551?

The ASC8851ET/M2,551 integrates dedicated hardware accelerators for AES-128/192/256, TDES, DES, SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512. These engines offload encryption and hashing tasks from the ARM926EJ-S core, enabling secure boot, encrypted video streaming, and tamper-resistant firmware updates without performance penalty.

Is the ASC8851ET/M2,551 pin-compatible with other members of the ASC885x family, such as the ASC8850ET/M2,551?

Yes, the ASC8851ET/M2,551 is pin-to-pin compatible with the ASC8850ET/M2,551 and other M2-version ASC885x devices in the TFBGA-484 package. This compatibility allows board reuse across performance tiers, though software configuration must account for differences in maximum encoding rate, BT.656 channel count, and memory channel timing parameters.