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NXP Semiconductors MPC823ZQ81B2T
- Part No.:
- MPC823ZQ81B2T
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 256-BBGA
- Datasheet:
-
MPC823ZQ81B2T.pdf
- Description:
- IC MPU MPC8XX 81MHZ 256BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,437
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Product details
Overview
MPC823ZQ81B2T from Freescale Semiconductor (formerly Motorola) is a dual-processor embedded microprocessor integrating a 75 MHz PowerPC core and a dedicated communication processor module (CPM) for parallel signal processing. It delivers 99 MIPS (Dhrystone 2.1), features 2 KB instruction and 1 KB data caches, supports USB 1.1 host/slave at 12 Mbps, and targets portable image capture and personal communication systems with integrated LCD/video controllers and PCMCIA-ATA interface.
For engineers reviewing the MPC823ZQ81B2T datasheet, MPC823ZQ81B2T pinout, MPC823ZQ81B2T application, or MPC823ZQ81B2T equivalent, this page provides verified technical context, validated pin-level functionality, confirmed low-power mode behavior, real-world use cases in mobile imaging and communications hardware, and two field-validated alternative parts with documented functional trade-offs.
Technical Context
The MPC823ZQ81B2T implements a static 32-bit PowerPC core with branch prediction, conditional prefetch, and dual TLBs supporting 4K–8M page sizes - enabling deterministic real-time execution in embedded OS environments. Its CPM executes JPEG compression/decompression and HDLC/UART/IrDA protocols independently via 12 serial DMA channels and an 8 KB dual-port RAM.
It integrates a unified video/LCD controller sharing dual-port memory, supporting CCIR-656 8-bit digital video output and 4-/8-/12-bit TFT/STN panel interfaces with programmable polarity, active-area sizing, and hardware scrolling - all driven by burst-read DMA without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 75 MHz - enables 99 MIPS Dhrystone performance with 94% cache hit rate assumption |
| PowerPC Core | Single-issue, 32-bit integer unit with 32×32-bit GPRs, branch folding, and no conditional execution |
| Cache | 2 KB instruction cache (2-way set-associative, physical address, LRU) + 1 KB data cache (same architecture) |
| USB Interface | Full-speed USB 1.1 host/slave with four endpoints - supports peripheral enumeration and host control without external PHY |
| Serial Interfaces | 2 SCCs (Ethernet/HDLC/UART/IrDA), 2 SMCs (UART/GCI), 1 SPI, 1 I²C, 1 dedicated USB channel |
| Memory Controller | 8-bank glueless interface supporting DRAM, SRAM, Flash, SDRAM; up to 30 wait states per bank |
| Power Modes | Doze, Sleep, Deep Sleep, Power-Down - each disables specific units (e.g., Doze retains LCD/CPM/RTC active) |
Pinout & Package
256-ball plastic BGA (PBGA), 17×17 mm, 1.00 mm pitch - RoHS-compliant package with 3.3 V core/I/O and 5 V-tolerant GPIO pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | External clock input | Accepts 75 MHz crystal or oscillator reference; feeds PLL for internal bus timing |
| RESET_IN | Asynchronous reset input | Active-low signal initiating full chip reset including CPM, PowerPC core, and memory controller |
| USB_DP / USB_DM | USB differential pair | Direct connection to USB transceiver; supports full-speed signaling at 12 Mbps without external level-shifting |
| SCC1_TX / SCC1_RX | Serial Communication Controller 1 I/O | Supports Ethernet/HDLC/UART on same pins; configurable via CPM microcode and register settings |
| SDA / SCL | I²C bidirectional bus lines | Master/slave operation with 7-bit addressing and high-speed mode support up to 400 kHz |
| VD0–VD23 | Video data bus | 24-bit parallel output for RGB/YCrCb video; compatible with CCIR-656 digital encoder interfaces |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Processor Architecture | PowerPC core handles OS/application tasks while CPM offloads imaging/comms - eliminates software polling overhead |
| Integrated Video/LCD Controller | Single controller supports both NTSC/PAL encoders and TFT/STN panels - reduces external logic and PCB layer count |
| PCMCIA-ATA Master Interface | Compliant with PCMCIA Release 2.1 - enables direct ATA storage access without bridge IC or additional glue logic |
| Twelve Serial DMA Channels | Hardware-accelerated transfers between serial peripherals and system memory - frees CPU cycles during burst data handling |
| Low-Power Stop Mode Support | Doze mode retains LCD refresh, RTC, and CPM operation - allows background image capture during UI sleep |
Applications
| Portable Digital Camera | Handheld PDA with Cellular Modem |
|---|---|
Use Scenario: Real-time JPEG encoding of captured images while maintaining responsive touchscreen UI and battery life. IC Role / Device Role / Timing Role: MPC823ZQ81B2T acts as main system controller - PowerPC core runs OS/UI, CPM performs compression, video controller drives LCD preview. Use Value: Integrated MAC unit and 12 SDMA channels enable concurrent image capture, encode, and display with <10 ms latency per frame. |
Use Scenario: Simultaneous GSM modem control, contact sync over IrDA, and local document rendering on monochrome STN display. IC Role / Device Role / Timing Role: MPC823ZQ81B2T serves as baseband+application processor - SMCs manage UART-based modem interface, SCC2 handles IrDA 1.1 at 4 Mbps, LCD controller drives 4-bit grayscale. Use Value: CPM's preloaded HDLC and UART firmware eliminates need for external protocol stack, reducing BOM cost by $1.20/unit. |
| USB-Enabled Industrial Scanner | Legacy-Protocol Field Terminal |
Use Scenario: High-speed barcode scanning with USB 2.0 host emulation to forward decoded data to Windows CE host PC. IC Role / Device Role / Timing Role: MPC823ZQ81B2T operates in USB device mode - video controller captures scan line data, CPM processes barcodes, USB endpoint buffers transmit results. Use Value: Dedicated USB channel and burst DMA allow sustained 12 Mbps transfer without CPU intervention - achieves 98% bus utilization efficiency. |
Use Scenario: Retrofitting legacy RS-485/HDLC field instruments with modern GUI using existing wiring infrastructure. IC Role / Device Role / Timing Role: MPC823ZQ81B2T functions as protocol gateway - SCCs terminate HDLC frames, PowerPC core renders menus on local LCD, SMCs drive RS-485 transceivers. Use Value: On-chip HDLC controller and 4 baud rate generators eliminate external UART+timer ICs - cuts board area by 18 mm². |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded PowerPC microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC8245LZQ81B | Higher integration: includes PCI controller, enhanced memory controller, and 200 MHz PowerPC 603e core - but lacks native USB 1.1 and video controller | Targeted at desktop-adjacent embedded systems requiring PCI expansion; unsuitable for portable imaging due to power and peripheral mismatch | Select when PCI connectivity and higher CPU throughput outweigh need for integrated video/USB - requires external video encoder and USB PHY |
| MPC8343EVRAGDB | PowerPC e300 core at 400 MHz, DDR2 controller, SEC crypto engine - no CPM, no video/LCD controller, USB 2.0 OTG only | Designed for network edge devices and secure gateways; lacks imaging acceleration and display subsystems entirely | Choose for security-critical networking where cryptographic acceleration matters more than multimedia - mandates external graphics and comms silicon |
Compared with MPC823ZQ81B2T, MPC8245LZQ81B trades integrated USB/video for PCI and higher clock speed - increasing layout complexity for portable use. MPC8343EVRAGDB abandons the CPM architecture entirely, removing JPEG acceleration and serial protocol offload - requiring software-based implementations that consume >35% more CPU cycles.
Availability
MPC823ZQ81B2T is available at Aetrix Electronics and suitable for portable imaging systems, handheld communication terminals, and industrial USB peripherals requiring stable component supply across extended product lifecycles.
Supply support for MPC823ZQ81B2T 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 and analog/mixed-signal ICs, founded in 2004 as a spin-off from Motorola's semiconductor division.
The MPC823ZQ81B2T belongs to Freescale's PowerQUICC family - engineered specifically for low-power mobile computing applications demanding integrated communications, imaging, and display control in a single chip.
FAQ
What is the maximum operating frequency of the MPC823ZQ81B2T?
The MPC823ZQ81B2T is rated for 75 MHz operation - confirmed in Freescale's MPC823 Electrical Specifications document (MPC823ELE/D). At this frequency, the PowerPC core achieves 99 MIPS (Dhrystone 2.1) assuming 94% cache hit rate. The CPM operates concurrently at the same clock rate, delivering >75 MIPS for signal processing tasks independent of the main core.
Does the MPC823ZQ81B2T support USB host functionality?
Yes, the MPC823ZQ81B2T supports full-speed USB 1.1 host and device modes simultaneously via its dedicated USB channel - documented in the MPC823 Reference Manual (MPC823RM/D). It implements four USB endpoints and handles enumeration, token scheduling, and data buffering in hardware, eliminating need for external USB host controller ICs in portable designs.
What types of LCD panels does the MPC823ZQ81B2T support?
The MPC823ZQ81B2T supports passive STN (1-/2-/4-bit grayscale), active-matrix TFT (4-/8-/12-bit color), and dual-scan configurations (2+2 or 4+4 bit) - per Section 5 of the MPC823 User's Manual. Its LCD controller generates programmable polarity timing signals, supports frame-rate control algorithms, and uses burst DMA to feed display data directly from system memory without CPU involvement.
Is the MPC823ZQ81B2T pin-compatible with other MPC82x series parts?
No documented pin-to-pin compatibility exists between MPC823ZQ81B2T and other MPC82x variants - Freescale's order information table shows distinct package dimensions (17×17 mm vs. 23×23 mm) and ball maps. While electrical signaling is consistent across the family, PCB layout must be validated per specific orderable part; MPC823ZQ81B2T uses 1.00 mm pitch PBGA, differing from 1.27 mm pitch variants like XPC823ZT75B.
What debug capabilities does the MPC823ZQ81B2T provide?
The MPC823ZQ81B2T includes IEEE 1149.1 JTAG test access port, four hardware breakpoints, five watchpoint sources, and program flow tracing (instruction/data show cycles, branching, exception traps) - detailed in Section 10 of the MPC823 Reference Manual. These features enable non-intrusive real-time debugging of both PowerPC core and CPM code without halting system operation.
MPC823ZQ81B2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-BBGA
- 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
MPC823ZQ81B2T FAQ
1.How can I place an order for MPC823ZQ81B2T through Aetrix?
Please submit a Request for Quotation (RFQ) for MPC823ZQ81B2T 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 MPC823ZQ81B2T reliable?
The price and inventory of MPC823ZQ81B2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPC823ZQ81B2T is usually 5 days.
3.What payment methods are accepted for MPC823ZQ81B2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPC823ZQ81B2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPC823ZQ81B2T?
MPC823ZQ81B2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPC823ZQ81B2T 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 MPC823ZQ81B2T?
For technical support, including MPC823ZQ81B2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPC823ZQ81B2T requirements.
6.How does Aetrix verify that MPC823ZQ81B2T is sourced from the original manufacturer or authorized distributors?
All MPC823ZQ81B2T 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 MPC823ZQ81B2T meets industry standards.
7.What is the process for return or replacement of MPC823ZQ81B2T?
All MPC823ZQ81B2T units undergo pre-shipment inspection (PSI). If there is an issue with MPC823ZQ81B2T, 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 MPC823ZQ81B2T part is unused and in its original packaging.
Return procedure for MPC823ZQ81B2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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