NXP Semiconductors XPC823CZT66B2T

Overview

XPC823CZT66B2T from Freescale Semiconductor is a dual-processor embedded microprocessor integrating a 75 MHz PowerPC core and a dedicated 32-bit RISC communication processor module. It delivers 99 MIPS (Dhrystone 2.1), features 2 KB instruction cache and 1 KB data cache, supports USB 1.1 host/slave at 12 Mbps, and targets low-power portable imaging and communications devices including digital cameras and handheld terminals.

For engineers reviewing the XPC823CZT66B2T datasheet, XPC823CZT66B2T pinout, XPC823CZT66B2T application, or XPC823CZT66B2T equivalent, this page provides verified technical context, validated package mapping to 256-pin PBGA (23×23 mm, 1.27 mm pitch), confirmed operating temperature range (−40°C to +95°C), and real-world functional alternatives for mobile computing system design.

Technical Context

The XPC823CZT66B2T implements a static dual-processor architecture: a fully compatible PowerPC integer core with MMU, TLBs, and cache coherency logic, plus an independent CPM executing imaging and protocol stacks in parallel. Its memory controller supports eight banks with programmable wait states (0–30), glueless interfaces to DRAM, SRAM, Flash, and SDRAM, and dynamic bus sizing for 8-/16-/32-bit peripherals.

On-chip peripherals include two SCCs (supporting Ethernet/HDLC/UART/USART/IrDA), two SMCs (UART/GCI), one USB 1.1 channel, one SPI, one I²C port, a video/LCD controller with CCIR-656 compatibility, PCMCIA-ATA v2.1 interface, and four 16-bit timers. Power management includes doze, sleep, deep-sleep, and power-down modes with selective unit retention.

Key Specifications

Pinout & Package

256-pin PBGA (23×23 mm, 1.27 mm pitch) with perimeter ball layout supporting high-density routing and thermal dissipation in portable form factors. Pin functions are defined per MPC823 Reference Manual (MPC823RM/D) and validated against Freescale's official package drawing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar embedded microprocessor applications.

Compared with XPC823CZT66B2T, MPC823ZT66B lacks extended temperature support limiting field deployment, while MPC823CZC66B trades thermal reliability for compactness-XPC823CZT66B2T uniquely balances industrial-grade temperature range with proven thermal performance in 23×23 mm PBGA.

Availability

XPC823CZT66B2T is available at Aetrix Electronics and suitable for digital imaging systems, portable communication terminals, medical handsets, and industrial HMIs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for XPC823CZT66B2T 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

Freescale Semiconductor (now part of NXP Semiconductors) was a leading designer of embedded processors, analog, and mixed-signal ICs for automotive, industrial, and networking markets before its 2015 acquisition.

The MPC823 family-including XPC823CZT66B2T-was engineered as a low-power, integrated solution for mobile computing, emphasizing dual-processor efficiency, USB connectivity, and real-time imaging capabilities in portable electronics.

FAQ

What is the maximum operating frequency of the XPC823CZT66B2T?

The XPC823CZT66B2T is rated for 66 MHz operation. Although the underlying MPC823 Rev. B silicon supports up to 75 MHz (as seen in XPC823ZT75B), the XPC823CZT66B2T variant is factory-configured and characterized for stable 66 MHz operation across its full −40°C to +95°C temperature range. This ensures timing margin compliance in thermally demanding portable applications.

Does the XPC823CZT66B2T support USB device mode?

Yes, the XPC823CZT66B2T supports both USB host and device (peripheral) modes at full speed (12 Mbps) using its dedicated USB channel. The USB interface includes four configurable endpoints and complies with USB 1.1 specifications. Device enumeration is enabled via internal pull-up on USB_DP, and the CPM handles protocol stack execution without PowerPC core involvement.

What memory types does the XPC823CZT66B2T memory controller support?

The XPC823CZT66B2T memory controller supports DRAM, SRAM, EPROM, Flash EPROM, SDRAM, and EDO memory across eight independently configurable banks. Each bank allows programmable wait states (0–30), variable block sizes (32 KB to 256 MB), and glueless interfacing-no external logic required for standard JEDEC-compliant devices. Boot configuration supports 8-, 16-, or 32-bit memory initialization.

How many serial communication controllers (SCCs) are integrated into the XPC823CZT66B2T?

The XPC823CZT66B2T integrates two Serial Communication Controllers (SCCs). Each SCC supports multiple protocols including Ethernet/IEEE 802.3 (10 Mbps), HDLC/SDLC, UART, USART, IrDA (SCC2 only, up to 4 Mbps), and Totally Transparent mode with optional CRC. Both SCCs feature independent baud rate generators and support serial data rates up to 35 Mbps.

Is the XPC823CZT66B2T pin-compatible with other MPC823 variants?

Yes, the XPC823CZT66B2T shares identical pinout and ball map with all 256-pin PBGA MPC823 variants-including XPC823ZT66B, XPC823ZT75B, and XPC823CZT75B-regardless of speed grade or temperature rating. Mechanical and electrical pin compatibility is guaranteed per Freescale's MPC823 package drawings and electrical specifications documents.