ASC8851AETK

Overview

The ASC8851AETK is a specialized application processor manufactured by NXP Semiconductors, designed for advanced video processing tasks. It integrates an ARM926EJ-S core operating at a maximum clock frequency of 600 MHz with a 32-bit data bus width. The device features 16 kB L1 instruction and 16 kB L1 data caches. Packaged in a 484-pin TFBGA format for surface-mount installation, it supports interfaces including Ethernet, I2S, SPI, UART, and Video. This component functions as a dedicated processor for high-definition video applications.

Feature Summary

• ARM926EJ-S single-core processor running up to 600 MHz
• Integrated 16 kB L1 instruction and 16 kB L1 data caches
• Supports H.264 compression for 1080p/45fps video streams
• Interfaces include Ethernet, I2S, SPI, UART, and Video

Applications

• High-definition real-time network cameras (IP cameras)
• Audio applications requiring video processing integration
• Digital image processing systems utilizing ISP functions

Procurement Notes

The ASC8851AETK is listed as a discontinued product by the manufacturer. Availability through standard distribution channels is currently restricted or unavailable in many regions. Designers should verify current lifecycle status and lead times with authorized suppliers before incorporating this component into new designs, as replacement parts may be required.

Selection Notes

This processor is selected specifically for its integrated capabilities in handling raw CMOS sensor data, performing digital image processing (ISP) with 3A functions, and compressing video via H.264. It is suitable for designs requiring a single-chip solution for IP cameras. Engineers must account for the 484-TFBGA package requirements and ensure compatibility with the specified interface protocols such as Ethernet and I2S.

Part Context

The ASC8851 belongs to NXP's family of application-specific processors tailored for multimedia and communication devices. It is part of the ASC88 series, which includes variants like the ASC8850. These components are engineered to reduce system bill of materials by integrating processing, image signal processing, and connectivity on a single die, targeting the security and surveillance market segments.

Replacement Considerations

As the ASC8851AETK is discontinued, engineers must evaluate alternative NXP processors within the i.MX or other applicable families that support similar ARM9 architectures and video processing features. Compatibility checks regarding pinout, voltage levels, and software drivers are essential when selecting a substitute component.