XPC823ZT81B2T

Overview

The XPC823ZT81B2T is a mobile computing microprocessor from the MPC823 family, manufactured by NXP USA Inc. It integrates an embedded PowerPC core with a communication processor module and video/LCD controllers. The device operates at frequencies up to 75MHz within a temperature range of -40°C to 95°C. It utilizes a 256-lead Plastic Ball Grid Array (PBGA) package with dimensions of 23x23mm and a 1.27mm pitch. Key specifications include 32-bit architecture, 3.3V I/O boundary, and support for multiple memory interfaces.

Feature Summary

• Dual-processor architecture combining a high-performance PowerPC core with a specialized RISC Communication Processor Module for parallel task execution.
• Integrated Video and LCD controllers supporting digital NTSC/PAL encoders, TFT panels, and passive displays with DMA-driven data transfer.
• Extensive serial connectivity including USB, Ethernet, HDLC, UART, USART, SPI, and I2C interfaces managed by dedicated controllers.
• Comprehensive power management capabilities featuring multiple low-power modes such as Doze, Sleep, Deep-Sleep, and Power-Down.

Applications

• Low-power portable electronic products
• Image capture devices requiring embedded signal processing
• Personal communication systems with GUI requirements
• Mobile computing platforms utilizing real-time operating systems

Procurement Notes

Verify the specific suffix '81' against official documentation, as standard datasheets list '66' or '75' frequency variants. Confirm current manufacturing status, as the MPC823 family has been discontinued. Ensure compatibility with existing board designs regarding the 256-lead PBGA footprint and 3.3V logic levels before procurement.

Selection Notes

Select this component for applications demanding a balance between general-purpose processing and dedicated communication handling. The integrated CPM offloads serial protocols from the main core, improving efficiency. Consider the available cache sizes and memory controller flexibility when designing system architecture for specific latency requirements.

Part Context

This part belongs to the MPC823 Mobile Computing Microprocessor family, originally developed by Motorola and later acquired by Freescale Semiconductor, now NXP. The series targets the embedded market with a focus on multimedia and communications. The XPC823ZT81B2T variant specifically denotes the extended temperature range and 75MHz operational speed within the 23x23mm BGA package.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source material. The MPC823 family is listed as discontinued. Designers should evaluate newer Layerscape or QorIQ families for long-term supply continuity, though architectural differences require significant redesign.

FAQ

What is the maximum operating frequency for the XPC823ZT81B2T?

The XPC823ZT81B2T operates at a maximum frequency of 75MHz.

Does the MPC823 support little-endian memory systems?

Yes, the System Integration Unit supports traditional x86 little-endian and PowerPC little-endian memory systems in addition to big-endian.

How many serial DMA channels are available?

The device provides twelve Serial DMA (SDMA) channels to support the SCCs, SMCs, USB channel, SPI, and I2C controllers.