NXP Semiconductors XPC823ZT75B2T

Overview

XPC823ZT75B2T from Freescale Semiconductor is a 75 MHz, 256-pin PBGA (23×23 mm, 1.27 mm pitch) embedded PowerPC microprocessor with integrated communication processor module, USB 1.1 host/slave interface, dual-channel serial communication controllers (SCCs), two serial management controllers (SMCs), I²C, SPI, video/LCD controller, PCMCIA-ATA v2.1 interface, and low-power operation down to deep-sleep mode - designed for portable image capture and personal communication devices.

For engineers reviewing the XPC823ZT75B2T datasheet, XPC823ZT75B2T pinout, XPC823ZT75B2T application, or XPC823ZT75B2T equivalent, this page delivers verified architecture details, power management modes, cache configuration, memory controller capabilities, and real-world use context for mobile computing system design.

Technical Context

The XPC823ZT75B2T implements a dual-processor architecture: a 32-bit PowerPC core delivering 99 MIPS at 75 MHz (Dhrystone 2.1), paired with a dedicated 32-bit scalar RISC communication processor module running at >75 MIPS in parallel. The CPM handles imaging compression/decompression via 16×16 MAC hardware and offloads serial protocol processing including Ethernet/IEEE 802.3, HDLC/SDLC, IrDA 1.1, ISDN BRI/PR, UART/USART, and transparent modes.

It integrates a 2K instruction cache and 1K data cache (both two-way set-associative, physical addressing), 8-entry fully associative TLBs supporting 4K/16K/512K/8M page sizes, and a memory controller with eight programmable banks, up to 30 wait states per bank, and glueless support for DRAM, SRAM, Flash, and SDRAM - all operating from a single 3.3V supply with 5V-tolerant I/O pins.

Key Specifications

Pinout & Package

Package: 256-ball Plastic Ball Grid Array (PBGA), 23 mm × 23 mm, 1.27 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XPC823ZT75B2T, MPC8245LVR400B trades integrated multimedia peripherals for higher compute and PCI - increasing board complexity and power draw. MPC8272CZQ80B retains core functionality while adding security acceleration but drops PCMCIA - making it viable only when that interface is unused and crypto offload is critical.

Availability

XPC823ZT75B2T is available at Aetrix Electronics and suitable for handheld medical diagnostics, portable image capture systems, and industrial data collection terminals requiring stable component supply across extended product lifecycles.

Supply support for XPC823ZT75B2T 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 semiconductors for automotive, industrial, and networking markets.

The MPC823 product line was engineered specifically for low-power mobile computing - integrating PowerPC compute, communication acceleration, and display control into a single die to reduce system cost and power in portable imaging and communications devices.

FAQ

What is the maximum operating frequency of the XPC823ZT75B2T?

The XPC823ZT75B2T is rated for 75 MHz operation, confirmed by Motorola's official order information table and electrical specifications. This frequency enables the embedded PowerPC core to deliver 99 MIPS (Dhrystone 2.1) and the communication processor module to achieve >75 MIPS in parallel. The device uses an external clock input and internal PLL to generate the core clock, with EBDF division required for frequencies above 50 MHz.

Does the XPC823ZT75B2T support USB host functionality?

Yes, the XPC823ZT75B2T includes a dedicated high-speed serial channel for Universal Serial Bus (USB) that supports both host and slave modes at up to 12 Mbps with four USB endpoints. This capability is explicitly documented in the Technical Summary and Key Features sections of the MPC823TS/D datasheet, enabling direct connection to USB peripherals or PC hosts without external PHY.

What types of memory interfaces does the XPC823ZT75B2T support?

The XPC823ZT75B2T supports glueless interfaces to DRAM, SRAM, EPROM, Flash EPROM, and SDRAM through its eight-bank memory controller. Each bank is independently configurable for wait states (0–30), block size (32K–256M), and chip-select/RAS assignment. It provides four CAS lines, four WE lines, one OE line, and boot chip-select options for 8-/16-/32-bit memory - all verified in the Memory Controller section of the reference manual.

How many serial communication controllers (SCCs) does the XPC823ZT75B2T include?

The XPC823ZT75B2T includes two Serial Communication Controllers (SCCs), each with externally accessible pins and support for multiple protocols including Ethernet/IEEE 802.3 (10 Mbps), HDLC/SDLC, UART, USART, IrDA 1.1 (SCC2 only), and Totally Transparent mode with optional CRC. This is confirmed in the Technical Summary, Key Features, and Architecture diagrams of the MPC823TS/D documentation.

What power management modes are available on the XPC823ZT75B2T?

The XPC823ZT75B2T supports six power management modes: Normal High, Normal Low, Doze, Sleep, Deep Sleep, and Power-Down. In Doze mode, only timebase, decrementer, PLL, memory controller, RTC, LCD, and CPM remain active; Sleep disables all except RTC, timebase, decrementer, and periodic interrupt timer; Deep Sleep and Power-Down progressively disable more units including the PLL. These modes are detailed in the Power Management section of the MPC823TS/D datasheet.