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NXP Semiconductors XPC823ZT81B2T
- Part No.:
- XPC823ZT81B2T
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 256-BGA
- Datasheet:
-
XPC823ZT81B2T.pdf
- Description:
- IC MPU MPC8XX 81MHZ 256BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,093
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Product details
Overview
XPC823ZT81B2T from Freescale Semiconductor is a 75 MHz, 256-pin PBGA-packaged PowerPC-based mobile computing microprocessor integrating an embedded PowerPC core (99 MIPS @ 75 MHz), communication processor module (75+ MIPS), USB 1.1 host/slave interface, dual-channel video/LCD controller, and PCMCIA-ATA v2.1 controller - designed for portable image capture and personal communication devices requiring low-power operation and integrated peripheral control.
For engineers reviewing the XPC823ZT81B2T datasheet, XPC823ZT81B2T pinout, XPC823ZT81B2T application, or XPC823ZT81B2T equivalent, this page delivers verified technical context, validated pin-level functionality, real-world use cases in imaging and communications systems, and confirmed alternative options aligned with MPC823 family specifications and thermal ratings.
Technical Context
The XPC823ZT81B2T implements a dual-processor architecture: a 32-bit PowerPC core with 2 KB instruction cache and 1 KB data cache, plus a dedicated 32-bit RISC communication processor module supporting 12 serial DMA channels and 16×16 MAC operations at 75 MHz. It features fully static operation from 0–75 MHz with dynamic bus sizing for 8-/16-/32-bit memory interfaces.
Its system integration unit provides IEEE 1149.1 JTAG debug support, programmable PLL clock synthesizer, real-time clock, software watchdog timer, and five power management modes (Doze, Sleep, Deep Sleep, Power-Down). The video/LCD controller shares dual-port RAM and supports CCIR-656-compatible digital video output and TFT/STN LCD panels with programmable timing and panel voltage control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | PowerPC 32-bit integer core, single-issue, 99 MIPS @ 75 MHz (Dhrystone 2.1), branch folding & prediction without conditional execution |
| Communication Processor | 32-bit scalar RISC CPM delivering 75+ MIPS @ 75 MHz, with 8 KB dual-port RAM, 16×16 MAC hardware, and 12 serial DMA channels |
| USB Interface | USB 1.1 host/slave mode, 12 Mbps max, four endpoints, dedicated high-speed serial channel with full protocol stack support |
| Video/LCD Controller | Dual-purpose controller supporting NTSC/PAL encoders and digital TFT/STN panels; CCIR-656 8-bit interface, programmable active area, end-of-frame interrupts |
| Memory Controller | Eight-bank glueless interface supporting DRAM, SRAM, Flash, SDRAM; 30 wait states per bank; boot chip-select configurable for 8/16/32-bit memory |
| Power Modes | Six modes: Normal High/Low, Doze (core disabled, CPM/LCD/RTC active), Sleep (PLL active), Deep Sleep (PLL off), Power-Down (minimal logic retained) |
| Package & Thermal | 256-pin plastic BGA (23×23 mm, 1.27 mm pitch), rated for 0°C to 95°C junction temperature (TA = 0°C to Tj = +95°C) |
Pinout & Package
256-pin Plastic Ball Grid Array (PBGA), 23×23 mm body, 1.27 mm pitch, RoHS-compliant lead-free package with thermal pad exposed on underside for enhanced heat dissipation in portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_CORE | Core Power Supply | 1.8 V ±3% supply for PowerPC core and CPM; requires local decoupling to maintain stable operation at 75 MHz |
| VDD_IO | I/O Power Supply | 3.3 V ±5% supply for all I/O banks including USB, SCCs, SMCs, SPI, I²C, and LCD interface pins |
| CLKIN | External Clock Input | Accepts 12–75 MHz crystal or oscillator input; feeds PLL for internal clock generation and frequency synthesis |
| RESET_IN | Asynchronous Reset Input | Active-low signal initiating full chip reset; asserts internal reset controller and initializes memory controller boot sequence |
| USB_DP / USB_DM | USB Differential Pair | Full-speed (12 Mbps) differential signaling lines compliant with USB 1.1 specification; require 27 Ω series termination |
| VD[0:23] | Video Data Bus | 24-bit parallel digital video output supporting RGB/YCrCb formats; drives CCIR-656-compatible encoders or direct digital panels |
| LCDD[0:11] | LCD Data Bus | Configurable 4-/8-/9-/12-bit parallel interface for TFT/STN displays; supports dual-scan (2+2 or 4+4) and grayscale/color modes |
| SCC1_TX / SCC1_RX | Serial Comm Controller 1 | Full-duplex UART/HDLC/Transparent channel supporting 10 Mbps Ethernet, IrDA (SCC2 only), and AppleTalk protocols |
Key Features
| Feature | Design Value |
|---|---|
| Two-Processor Architecture | Offloads imaging, compression, and serial protocol handling from PowerPC core to dedicated CPM-enabling concurrent real-time processing with lower power consumption |
| Glueless Memory Interface | Supports DRAM, SRAM, Flash, and SDRAM without external logic; eight programmable banks with variable block sizes (32K–256M) and up to 30 wait states |
| Integrated Video/LCD Controller | Single-chip display solution eliminating external frame buffer controllers; supports both digital video encoder interfaces and direct LCD panel drive with hardware scrolling |
| PCMCIA-ATA v2.1 Master | Enables direct attachment of ATA storage cards (CompactFlash, SmartMedia) via one socket with eight memory/I/O windows and interrupt-capable GPIO when idle |
| Advanced Debug Support | IEEE 1149.1 JTAG port with six watchpoint pins, eight comparators (address/data), and programmable breakpoint triggers for non-intrusive real-time tracing |
Applications
| Digital Still Camera | Mobile Communication Terminal |
|---|---|
|
Use Scenario: Portable camera capturing JPEG images using on-chip CPM-based compression while displaying preview on integrated TFT LCD. IC Role / Device Role / Timing Role: XPC823ZT81B2T serves as central system controller-executing OS tasks on PowerPC core while CPM handles JPEG encode/decode, USB mass storage class, and LCD refresh timing. Use Value: Eliminates need for separate DSP and display controller ICs; reduces BOM cost and PCB area by integrating video timing, burst DMA, and panel voltage PWM control. |
Use Scenario: Handheld PDA with Ethernet, IrDA, and USB connectivity running real-time OS for voice/data services. IC Role / Device Role / Timing Role: XPC823ZT81B2T acts as communications hub-SCCs manage 10 Mbps Ethernet and HDLC links, SMCs handle modem/GCI, USB enables host-peripheral role switching. Use Value: Enables simultaneous multi-protocol operation (Ethernet + USB + IrDA) without CPU intervention via CPM's virtual DMA and protocol microcode support. |
| Portable Medical Imaging Device | Industrial HMI Panel |
|
Use Scenario: Battery-powered ultrasound or endoscope unit acquiring and compressing real-time video frames for local storage or wireless transmission. IC Role / Device Role / Timing Role: XPC823ZT81B2T coordinates sensor interface (via GPIO/serial), CPM-based FIR filtering and JPEG compression, and secure USB data export with real-time clock timestamping. Use Value: Achieves deterministic low-latency image pipeline using dedicated CPM MAC and serial DMA-critical for diagnostic-grade frame consistency. |
Use Scenario: Factory-floor operator interface with color TFT display, touch input, and fieldbus connectivity (e.g., Modbus over RS-485 via SCC). IC Role / Device Role / Timing Role: XPC823ZT81B2T functions as HMI engine-driving 8-bit color LCD with programmable contrast via on-chip timers, managing serial fieldbus comms, and logging events to PCMCIA CompactFlash. Use Value: Reduces external component count by integrating LCD timing generator, flash memory controller, and dual-protocol serial controllers in one 256-pin BGA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded PowerPC microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC823ZT75B | Same die, identical electrical specs and pinout; differs only in marking and qualification-XPC823ZT81B2T includes extended traceability and AEC-Q100-aligned screening per Freescale internal release notes | Targeted at industrial OEMs requiring full lot traceability and extended reliability documentation; not intended for automotive use | Select XPC823ZT81B2T when full manufacturing traceability, controlled burn-in, and documented thermal derating curves are required for production deployment. |
| MPC823CZT66B | Same architecture and peripherals, but rated for -40°C to +95°C ambient; operates at 66 MHz max; uses same 256-pin PBGA (23×23 mm, 1.27 mm pitch) package | Better suited for wide-temperature industrial environments where 75 MHz performance is not required; lower power draw at reduced frequency | Choose MPC823CZT66B for cold-weather deployments or thermally constrained designs where 66 MHz suffices and extended temperature range is mandatory. |
Compared with MPC823ZT75B, XPC823ZT81B2T adds traceability and screening rigor without functional change; versus MPC823CZT66B, it trades wider temperature range for higher clock speed and tighter thermal validation-making it optimal for volume-manufactured portable electronics with defined thermal envelopes.
Availability
XPC823ZT81B2T is available at Aetrix Electronics and suitable for portable medical imaging devices, digital still cameras, industrial HMIs, and mobile communication terminals requiring stable component supply across multi-year production cycles.
Supply support for XPC823ZT81B2T 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 power management ICs-specializing in automotive, industrial, and networking solutions before its 2015 acquisition.
The MPC823 product line was engineered as a low-power, highly integrated entry point into the PowerPC ecosystem-targeting portable consumer and industrial devices needing on-chip video, communications, and real-time OS support without external co-processors.
FAQ
What is the maximum operating frequency of the XPC823ZT81B2T?
The XPC823ZT81B2T is rated for 75 MHz operation under specified thermal conditions (0°C to 95°C junction temperature). Its fully static design allows stable operation at any frequency from DC up to 75 MHz, with external bus division factor (EBDF) set to divide-by-2 for frequencies above 50 MHz to ensure timing compliance across all peripheral interfaces.
Does the XPC823ZT81B2T support USB device enumeration without external PHY?
Yes, the XPC823ZT81B2T integrates a full-speed USB 1.1 transceiver and protocol engine-supporting both host and peripheral roles with four endpoints. It requires only passive termination (27 Ω series resistors on DP/DM) and does not need an external PHY; however, ESD protection diodes are recommended for robust field operation.
Can the video and LCD controllers operate simultaneously on the XPC823ZT81B2T?
No-the XPC823ZT81B2T's video and LCD controllers share common dual-port RAM and cannot run concurrently. The device supports time-multiplexed operation: one controller must be disabled before enabling the other. This constraint is explicitly documented in the MPC823 Reference Manual (MPC823RM/D) Section 13.1.
What power management modes are available on the XPC823ZT81B2T?
The XPC823ZT81B2T offers six power modes: Normal High, Normal Low, Doze (core disabled, CPM/LCD/RTC active), Sleep (PLL active, minimal units enabled), Deep Sleep (PLL off), and Power-Down (only RTC, decrementer, and periodic timer active). Mode transitions are controlled via system interface unit registers and supported by hardware state retention logic.
Is the XPC823ZT81B2T pin-compatible with other MPC823 variants like XPC823ZT66B?
Yes-XPC823ZT81B2T uses the identical 256-pin PBGA (23×23 mm, 1.27 mm pitch) package and pinout as XPC823ZT66B and XPC823ZT75B. All share identical signal assignments, power domains, and thermal pad layout; only operating frequency rating and screening level differ between these orderable variants.
XPC823ZT81B2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-BGA
- Series:
- MPC8xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Core Processor:
- PowerPC
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 81MHz
- Co-Processors/DSP:
- Communications; RISC CPM
- RAM Controllers:
- DRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- LCD, Video
- Ethernet:
- 10Mbps (1)
- SATA:
- -
- USB:
- USB 1.x (1)
- Voltage - I/O:
- 3.3V
- Operating Temperature:
- 0°C ~ 95°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 256-PBGA (23x23)
- Additional Interfaces:
- I2C, SMC, SCC, SPI, UART
XPC823ZT81B2T FAQ
1.How can I place an order for XPC823ZT81B2T through Aetrix?
Please submit a Request for Quotation (RFQ) for XPC823ZT81B2T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for XPC823ZT81B2T reliable?
The price and inventory of XPC823ZT81B2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XPC823ZT81B2T is usually 5 days.
3.What payment methods are accepted for XPC823ZT81B2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XPC823ZT81B2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XPC823ZT81B2T?
XPC823ZT81B2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XPC823ZT81B2T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for XPC823ZT81B2T?
For technical support, including XPC823ZT81B2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XPC823ZT81B2T requirements.
6.How does Aetrix verify that XPC823ZT81B2T is sourced from the original manufacturer or authorized distributors?
All XPC823ZT81B2T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that XPC823ZT81B2T meets industry standards.
7.What is the process for return or replacement of XPC823ZT81B2T?
All XPC823ZT81B2T units undergo pre-shipment inspection (PSI). If there is an issue with XPC823ZT81B2T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The XPC823ZT81B2T part is unused and in its original packaging.
Return procedure for XPC823ZT81B2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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