ASC8848ET/M2,551

Overview

The NXP ASC8848ET/M2,551 is a single-chip system-on-chip (SoC) designed for full HD IP camera applications. It integrates an ARM926EJ-S CPU running at 400 MHz with dedicated hardware for image processing and video compression. The device supports up to 12 MPixel raw data input and delivers H.264 encoding performance of up to 720p @ 45 fps or 1080p @ 20 fps. It features a 10/100/1000 Ethernet MAC, USB 2.0 OTG, PCIe 1.1, and multiple peripheral interfaces including SPI, UART, and SDIO. The SoC operates within a compact TFBGA-484 package measuring 15 x 15 mm with a 0.65 mm pitch.

Feature Summary

• Integrated ARM926EJ-S CPU operating at 400 MHz with 16 K I-Cache and D-Cache
• Dedicated hardware engine supporting H.264, MPEG-4, and M-JPEG compression with ROI encoding and SVC-T
• Advanced image processing pipeline featuring digital WDR, noise reduction, and auto white balance
• Comprehensive connectivity including 10/100/1000 Ethernet MAC, USB 2.0 OTG, PCIe 1.1, and up to 5 I2S audio channels

Applications

• Security IP cameras
• Video conferencing systems
• Video door phones and intercoms
• Industrial vision systems

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure compatibility with required memory configurations, as the device supports up to 2 GB total SDRAM via DDR-II or DDR-III channels. Confirm that the selected variant meets the necessary interface requirements for the target application design.

Selection Notes

Select this model when a 400 MHz ARM926EJ-S processor is sufficient for the intended video stream resolution. The ASC8848 supports up to 720p @ 45 fps in H.264; higher resolutions or frame rates require models from the ASC885x family. Verify that the MII Ethernet interface aligns with the board design, as higher-end variants offer GMII/RGMII options.

Part Context

The ASC8848ET/M2,551 belongs to the ASC884x and ASC885x family of NXP SoCs. These products are pin-to-pin and software-compatible, allowing for scalable design transitions within the same product line. The family targets the transition from analog to digital switched networks, providing optimized video quality and low delay for network transmission.

Replacement Considerations

For direct functional upgrades within the same family, consider the ASC8849 (500 MHz), ASC8850 (600 MHz), or ASC8851 (600 MHz). These variants maintain pin and software compatibility while offering increased CPU frequency and higher video compression performance capabilities.