ASC8850ET,557

Overview

The ASC8850ET,557 is a System on Chip (SoC) microprocessor manufactured by NXP USA Inc., designed specifically for high-definition IP camera applications. It integrates an ARM9 core processor with advanced image signal processing capabilities to handle raw data from CMOS sensors. The device supports video compression formats including H.264, MPEG4, and MJPEG, enabling real-time network transmission of optimized video streams. Key interfaces include Ethernet, USB OTG, SPI, UART, SD/MMC, I2S, IrDA, and EBI/EMI. Packaged in a 484-TFBGA (15x15 mm) surface-mount enclosure, the component operates within standard industrial temperature ranges and complies with RoHS3 standards.

Feature Summary

• Integrated ARM9 processor core optimized for multimedia communication and entertainment tasks
• On-chip Image Signal Processor (ISP) supporting 3A functions and direct CMOS sensor interface
• Hardware-accelerated video compression supporting H.264, MPEG4, and MJPEG standards
• Comprehensive connectivity suite including 10/100 Ethernet, USB OTG, and multiple serial interfaces

Applications

• High-definition IP cameras requiring real-time video streaming
• Network video surveillance systems utilizing H.264 or MPEG4 compression
• Digital imaging devices integrating CMOS sensors with embedded processing
• Multimedia communication endpoints requiring low-latency video transmission

Procurement Notes

This component is officially listed as discontinued by NXP USA Inc. Verification of availability should focus on surplus distributors or secondary market sources rather than direct manufacturer allocation. Buyers must confirm the specific suffix '557' matches required packaging and environmental certifications, such as RoHS3 compliance, as legacy stock may vary in lot dates and moisture sensitivity levels. Functional equivalence checks against replacement parts are recommended due to end-of-life status.

Selection Notes

Select this SoC for designs requiring a single-chip solution for HD video capture and encoding without external DSPs. Ensure the host PCB supports the 484-TFBGA package with a 15x15 mm footprint. Verify that the application leverages the integrated ISP for Bayer raw data conversion and that the target resolution aligns with the ARM9 processing limits. Interface requirements must match the available EBI/EMI, USB OTG, and Ethernet controllers. Consider power consumption profiles relative to the thermal dissipation capabilities of the TFBGA package.

Part Context

The ASC8850 belongs to the ASC88 family of NXP's dedicated IP camera processors. This series was engineered to replace discrete PC-based card solutions with highly integrated embedded systems. The ASC8850 variant specifically targets SXGA resolution inputs and higher-end bandwidth requirements compared to lower-tier models in the same family. It represents a transition point in NXP's portfolio where hardware-accelerated H.264 encoding became standard for cost-effective network video solutions.

Replacement Considerations

As the ASC8850ET,557 is discontinued, no direct public substitute part numbers are confirmed in the provided documentation. Designers should evaluate newer NXP i.MX or Vybrid series processors for functional compatibility, though pinouts and peripheral configurations will likely require significant schematic and firmware redesign.