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NXP Semiconductors KXPC823VR81B2T
- Part No.:
- KXPC823VR81B2T
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 256-BBGA
- Datasheet:
-
KXPC823VR81B2T.pdf
- Description:
- IC MPU MPC8XX 81MHZ 256BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,743
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Product details
Overview
KXPC823VR81B2T from Freescale Semiconductor is a dual-processor embedded microprocessor integrating a 75 MHz PowerPC core and a dedicated communication processor module (CPM), with on-chip video/LCD controller, USB 1.1 host/slave interface, two SCCs, two SMCs, SPI, I²C, PCMCIA-ATA v2.1, and 8K dual-port RAM - designed for low-power portable imaging and personal communication devices.
For engineers reviewing the KXPC823VR81B2T datasheet, KXPC823VR81B2T pinout, KXPC823VR81B2T application, or KXPC823VR81B2T equivalent, this page delivers verified architecture details, power management modes, cache configuration, serial protocol support (HDLC/UART/USB/IrDA/ISDN), and real-world use context for mobile computing system design.
Technical Context
The KXPC823VR81B2T implements a static 32-bit PowerPC core delivering 99 MIPS at 75 MHz (Dhrystone 2.1), with 2 KB instruction cache and 1 KB data cache, both two-way set-associative and physically addressed, plus MMU with 8-entry fully associative TLBs supporting 4K/16K/512K/8M page sizes.
Its communication processor module operates concurrently at >75 MIPS, featuring twelve serial DMA channels, four baud rate generators, 16×16 MAC hardware, and ROM/downloadable microcode for Ethernet, HDLC, AppleTalk, IrDA 1.1 (SCC2 only), BRI/PRISDN, and JPEG compression/decompression functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Single-issue 32-bit PowerPC core, fully compliant with PowerPC Architecture Definition, enabling software compatibility across Motorola/Freescale embedded PowerPC family. |
| Operating Frequency | 75 MHz maximum - enables deterministic real-time performance in portable systems requiring stable clocking without external PLL tuning. |
| Cache Configuration | 2 KB instruction cache + 1 KB data cache, both two-way set-associative with LRU replacement and line locking - reduces memory bandwidth pressure and improves deterministic latency for GUI/video tasks. |
| Memory Controller | Eight-bank glueless interface supporting DRAM, SRAM, Flash, SDRAM, EPROM - eliminates external address latches and simplifies PCB layout for compact handheld designs. |
| Power Management Modes | Six modes: Normal High/Low, Doze, Sleep, Deep Sleep, Power-Down - allows dynamic voltage/frequency scaling and sub-µA retention current for battery-powered image capture devices. |
| Video/LCD Support | Dual-purpose controller supporting NTSC/PAL digital encoders and TFT/passive LCD panels with programmable grayscale/color depth, burst DMA transfers, and panel voltage control via CPM timers - enables direct drive of display subsystems without external timing ICs. |
| USB Interface | Dedicated high-speed serial channel supporting USB 1.1 host/slave at 12 Mbps with four endpoints - provides native connectivity to peripherals like cameras, modems, and storage without bridge ICs. |
Pinout & Package
256-ball plastic ball grid array (PBGA), 17 mm × 17 mm, 1.00 mm pitch - optimized for compact portable electronics with thermal and signal integrity requirements for mixed-signal SoC operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | External Clock Input | Accepts 75 MHz crystal or oscillator input to drive internal PLL; supports frequency synthesis for core, CPM, and peripheral clocks. |
| RESET_IN | Asynchronous Reset Input | Active-low signal initiating full chip reset including PowerPC core, CPM, memory controller, and all peripherals - ensures deterministic boot state. |
| SDRAM_CS0–CS7 | Memory Bank Chip Selects | Eight independent outputs enabling glueless interfacing to up to eight discrete memory banks or mixed-type memory subsystems (e.g., Flash + SDRAM). |
| USB_DP / USB_DM | USB Differential Data Pair | Direct connection to USB transceiver; supports full-speed 12 Mbps signaling without external level-shifting or termination resistors. |
| SCC1_TX / SCC1_RX | Serial Communication Controller 1 I/O | Full-duplex 10 Mbps Ethernet/HDLC/UART interface pins - configurable per protocol via CPM microcode and register settings. |
| LCDD[15:0] | LCD Data Bus | 16-bit parallel output supporting 4-/8-/9-/12-bit color modes and dual-scan configurations - directly drives TFT or STN panels with minimal external logic. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Processor Architecture | PowerPC core handles OS/application tasks while CPM offloads imaging, communication, and protocol processing - reduces total active power by >40% vs. single-core alternatives. |
| On-Chip Video/LCD Controller | Integrated timing generation, burst DMA, and panel voltage control eliminate need for external video encoder or LCD driver ICs in portable imaging systems. |
| Twelve Serial DMA Channels | Enables zero-CPU-overhead data movement between serial peripherals (SCCs/SMCs/USB/SPI/I²C) and system memory - critical for real-time video streaming and modem operation. |
| PCMCIA-ATA v2.1 Master Interface | Supports single socket with eight memory/I/O windows - allows direct attachment of CompactFlash, ATA hard drives, or wireless modems without additional controller ICs. |
| Advanced Debug Infrastructure | Four hardware breakpoints, five watchpoint sources, and program flow tracing - enables non-intrusive debugging of PowerPC and CPM code in resource-constrained embedded environments. |
Applications
| Portable Digital Camera | Handheld Communication Terminal |
|---|---|
Use Scenario: Real-time JPEG encoding of captured images with simultaneous USB mass storage class transfer to host PC. IC Role / Device Role / Timing Role: KXPC823VR81B2T acts as central SoC - PowerPC core runs image processing firmware while CPM executes JPEG compression and manages USB endpoint transfers. Use Value: On-chip MAC unit and twelve serial DMA channels enable concurrent compression and USB streaming without external co-processors or FIFO buffers. |
Use Scenario: ISDN BRI terminal supporting voice/data/fax over TDM-based telephony infrastructure. IC Role / Device Role / Timing Role: KXPC823VR81B2T serves as protocol engine - SMCs interface to line interface units, CPM handles HDLC framing and GCI time-slot assignment, PowerPC manages call control stack. Use Value: Integrated time-slot assigner and dual SMCs allow full-duplex ISDN BRI operation with precise T1/CEPT timing alignment and no external timing ICs. |
| Industrial Handheld Scanner | Medical Imaging PDA |
Use Scenario: Barcode scanning with LCD display feedback, Bluetooth/Wi-Fi coexistence via UART/USB, and flash-based firmware updates. IC Role / Device Role / Timing Role: KXPC823VR81B2T integrates scanner interface (via GPIO/SCC), monochrome LCD controller, and USB host for peripheral update - all within single package. Use Value: Glueless memory controller and 3.3V I/O with 5V TTL compatibility simplify interface to legacy barcode engines and industrial displays. |
Use Scenario: Portable ultrasound preview device displaying real-time grayscale video on integrated TFT panel with battery-backed RTC and secure firmware storage. IC Role / Device Role / Timing Role: KXPC823VR81B2T functions as imaging subsystem controller - video controller reads frame buffer via burst DMA, CPM handles ADC interface timing, PowerPC manages DICOM metadata. Use Value: Programmable grayscale modes (1-/2-/4-bit), panel voltage PWM control, and end-of-frame interrupts enable precise contrast calibration and low-latency display updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC8245VRP40B | Higher-performance PowerPC 603e core (400 MHz), integrated PCI controller, no on-chip video/LCD controller, larger 512-pin PBGA package. | Targeted at desktop-like embedded systems requiring PCI expansion; lacks native display support needed for portable UIs. | Select when PCI bus expansion and higher CPU throughput outweigh compact display integration. |
| MPC8313EVRAGDB | PowerPC e300 core (333 MHz), DDR2 memory controller, SEC crypto engine, no CPM or video controller, 484-pin PBGA. | Designed for secure networking gateways; missing serial protocol offload and display subsystems essential for imaging terminals. | Prefer for encrypted WAN edge devices where security acceleration matters more than multimedia I/O. |
Compared with MPC8245VRP40B and MPC8313EVRAGDB, the KXPC823VR81B2T uniquely balances low-power dual-processor execution, integrated video/LCD control, and rich serial protocol support - making it irreplaceable for space-constrained, battery-operated imaging and communication endpoints where display and protocol offload are mandatory.
Availability
KXPC823VR81B2T is available at Aetrix Electronics and suitable for portable medical imaging devices, industrial handheld scanners, digital camera modules, and ISDN communication terminals requiring stable component supply across extended product lifecycles.
Supply support for KXPC823VR81B2T 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, specializing in automotive, industrial, and networking applications before its 2015 acquisition.
The KXPC823VR81B2T belongs to Freescale's MPC82x family of mobile computing microprocessors - engineered specifically for low-power, high-integration portable systems demanding concurrent imaging, communication, and graphical user interface capabilities.
FAQ
What is the maximum operating frequency of the KXPC823VR81B2T?
The KXPC823VR81B2T operates at a maximum frequency of 75 MHz. This speed is confirmed in Freescale's official order information table and supported by its 2 KB instruction cache and 1 KB data cache configuration, which deliver 99 MIPS performance under Dhrystone 2.1 benchmark conditions. The KXPC823VR81B2T achieves this frequency using an internal PLL driven by an external CLKIN source, with EBDF division required for stable operation above 50 MHz.
Does the KXPC823VR81B2T include a USB interface, and what version does it support?
Yes, the KXPC823VR81B2T includes a dedicated high-speed serial channel supporting USB 1.1 at full speed (12 Mbps) in both host and slave modes, with four configurable endpoints. This capability is documented in the Technical Summary and Architecture sections of the MPC823TS/D datasheet, and the USB_DP/USB_DM pins are explicitly defined in the pinout specification - confirming native USB functionality without requiring external transceivers.
What types of display interfaces does the KXPC823VR81B2T support?
The KXPC823VR81B2T integrates a dual-purpose video/LCD controller supporting digital NTSC/PAL encoders and TFT/passive LCD panels. It provides 4-/8-/9-/12-bit parallel output (LCDD[15:0]), programmable grayscale (1-/2-/4-bit), dual-scan modes (2+2 or 4+4 bits), and hardware horizontal scrolling. These features are validated in the Video/LCD Controller section of the MPC823TS/D document and enable direct drive of common portable display modules without external timing or level-shifting ICs.
How many serial communication controllers (SCCs) does the KXPC823VR81B2T have, and what protocols do they support?
The KXPC823VR81B2T includes two serial communication controllers (SCCs), each supporting Ethernet/IEEE 802.3 (10 Mbps full-duplex), HDLC/SDLC, UART, USART, Totally Transparent mode, and IrDA 1.1 (SCC2 only). These capabilities are implemented via the communication processor module's microcode and hardware accelerators, allowing protocol flexibility without CPU intervention - as detailed in the "Communication Processor Module" and "Two Serial Communication Controllers" subsections of the MPC823TS/D reference.
What power management modes are available on the KXPC823VR81B2T?
The KXPC823VR81B2T supports six distinct power management modes: Normal High, Normal Low, Doze, Sleep, Deep Sleep, and Power-Down. In Doze mode, only core functional units are disabled - preserving operation of the timebase, decrementer, PLL, memory controller, real-time clock, LCD controller, and CPM. This enables rapid wake-up for interrupt-driven imaging tasks while reducing active current - a key feature for battery-powered portable devices as specified in the Power Management section of MPC823TS/D.
KXPC823VR81B2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-BBGA
- Series:
- MPC8xx
- Packaging:
- Box
- 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
KXPC823VR81B2T FAQ
1.How can I place an order for KXPC823VR81B2T through Aetrix?
Please submit a Request for Quotation (RFQ) for KXPC823VR81B2T 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 KXPC823VR81B2T reliable?
The price and inventory of KXPC823VR81B2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KXPC823VR81B2T is usually 5 days.
3.What payment methods are accepted for KXPC823VR81B2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KXPC823VR81B2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KXPC823VR81B2T?
KXPC823VR81B2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KXPC823VR81B2T 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 KXPC823VR81B2T?
For technical support, including KXPC823VR81B2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KXPC823VR81B2T requirements.
6.How does Aetrix verify that KXPC823VR81B2T is sourced from the original manufacturer or authorized distributors?
All KXPC823VR81B2T 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 KXPC823VR81B2T meets industry standards.
7.What is the process for return or replacement of KXPC823VR81B2T?
All KXPC823VR81B2T units undergo pre-shipment inspection (PSI). If there is an issue with KXPC823VR81B2T, 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 KXPC823VR81B2T part is unused and in its original packaging.
Return procedure for KXPC823VR81B2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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