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NXP Semiconductors KMPC8248VRTMFA
- Part No.:
- KMPC8248VRTMFA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 516-BBGA
- Datasheet:
-
KMPC8248VRTMFA.pdf
- Description:
- IC MPU MPC82XX 400MHZ PBGA516
- Quantity:
- Payment:
- Shipping:
Inventory:4,729
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Product details
Overview
KMPC8248VRTMFA from Freescale Semiconductor is a PowerQUICC II integrated communications processor featuring a 32-bit Power Architecture® G2_LE core (266–400 MHz), dual 16 KB instruction/data caches, integrated security engine (SEC) supporting AES/DES/SHA-1, dual Fast Communication Controllers (FCCs) for 10/100 Ethernet, and PCI 2.2-compliant bridge - deployed in carrier-grade access routers and secure industrial gateways.
For engineers reviewing the KMPC8248VRTMFA datasheet, KMPC8248VRTMFA pinout, KMPC8248VRTMFA application, or KMPC8248VRTMFA equivalent, key selection criteria include SEC hardware acceleration support, 516-pin PBGA VR package compatibility, dual-FCC Ethernet throughput, and PCI-to-60x bus coherency requirements in embedded networking designs.
Technical Context
The KMPC8248VRTMFA integrates a dual-issue G2_LE core with separate 16 KB I-cache and D-cache, physically addressed four-way set associative structure, and LRU replacement. Its CPM subsystem executes communications protocols via dedicated 32-bit RISC microcontroller with 16 KB dual-port RAM and 4 KB instruction RAM.
Security processing is offloaded to a dedicated SEC block supporting DES, 3DES, AES-128/192/256, SHA-1, MD-5, RC-4, PKEU, and RNG - all implemented in hardware without CPU intervention. Clocking uses independent PLLs for core (2:1 to 8:1 multipliers) and CPM (2:1 to 8:1), enabling asynchronous frequency scaling for power/performance optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | G2_LE Power Architecture® core, dual-issue integer, FPU-enabled, MMU-compliant |
| Clock Frequency Range | 266–400 MHz CPU core; CPM configurable at multiple ratios (2:1 to 8:1) |
| Memory Subsystem | 16 KB I-cache + 16 KB D-cache; eight-bank memory controller supporting SDRAM/Flash/SRAM |
| Security Engine | Hardware-accelerated AES/DES/3DES/SHA-1/MD-5/RC-4/PKEU/RNG - no software overhead |
| Communication Peripherals | 2× FCCs (10/100 Ethernet/MII), 3× SCCs, 2× SMCs, SPI, I²C, USB 2.0 full/low-speed host/slave |
| PCI Interface | 32-bit, 66 MHz, 3.3 V PCI 2.2-compliant bridge with DMA, hot-swap support, and configuration space |
| Package & Thermal | 516-pin PBGA (VR lead-free); RθJA = 27°C/W (single-layer board, natural convection) |
Pinout & Package
KMPC8248VRTMFA is housed in a 516-ball plastic ball grid array (PBGA) package with VR designation - lead-free, RoHS-compliant, 27 mm × 27 mm footprint, 1.27 mm ball pitch, and thermal pad on underside for board-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VDDH | Core & I/O supply rails | 1.425–1.575 V core (VDD), 3.135–3.465 V I/O (VDDH); separate power domains prevent noise coupling |
| CLKIN | Main system clock input | Accepts 33–66 MHz crystal or oscillator; feeds internal PLLs for core/CPM clock generation |
| PCI_AD[0–31] | PCI address/data multiplexed bus | 32-bit bidirectional multiplexed interface compliant with PCI 2.2 timing and electrical specs |
| FCC1_TXD / FCC1_RXD | First Fast Communication Controller Ethernet interface | MII-mode pins driving/receiving 10/100 Mbps Ethernet signals with auto-negotiation support |
| SEC_CLK / SEC_RST | Security engine clock/reset | Dedicated control lines enabling autonomous SEC operation independent of G2_LE core state |
| TSIZE[0–3] | Memory controller transfer size select | Configures 8/16/32/64-bit data transfers per cycle across all memory banks |
Key Features
| Feature | Design Value |
|---|---|
| Dual 16 KB caches with lockable regions | Enables deterministic real-time response by preventing cache line eviction during critical ISR execution |
| Independent core/CPM PLLs | Allows dynamic voltage/frequency scaling - e.g., run CPM at 133 MHz while core idles at 266 MHz to reduce total power |
| Hardware SEC with AES-256 | Delivers >100 Mbps encrypted throughput at <1% CPU utilization - essential for IPsec gateway performance |
| 60x bus with burst transfer support | 64-bit data path enables 533 MB/s peak bandwidth; supports pipelined bursts for high-throughput memory-mapped peripherals |
| PCI-to-60x address remapping | Permits external PCI devices to directly access internal memory space without CPU mediation - accelerates DMA-based I/O |
Applications
| Secure Broadband Access Gateway | Industrial Protocol Converter |
|---|---|
Use Scenario: Aggregating DSL/fiber subscriber traffic with mandatory IPsec encryption before upstream transmission to ISP core. IC Role / Device Role / Timing Role: Primary SoC executing Linux-based routing stack, managing dual-FCC Ethernet ports, and offloading AES-256 encryption to SEC block. Use Value: Hardware SEC achieves line-rate 100 Mbps IPsec throughput while maintaining sub-50 µs packet latency - meeting DOCSIS 3.1 timing compliance. | Use Scenario: Bridging legacy Modbus RTU fieldbus networks to modern EtherNet/IP infrastructure in factory automation cells. IC Role / Device Role / Timing Role: Communications processor running custom firmware on CPM to parse/translate protocol frames; G2_LE core handles TCP/IP stack and web HMI. Use Value: Three SCCs support simultaneous RS-485 Modbus master/slave and HDLC-based fieldbus links - eliminating need for external protocol ASICs. |
| Telecom Remote Terminal Unit | Secure Wireless Backhaul Node |
Use Scenario: Outdoor cabinet-mounted RTU performing T1/E1 line monitoring, alarm reporting, and remote firmware updates over secure channel. IC Role / Device Role / Timing Role: Real-time controller using two TDM interfaces and UTOPIA II port (MPC8272/8248 only) for DS1 framing and SONET OC-3 interface. Use Value: Integrated UTOPIA II PHY eliminates external transceiver - reduces BOM cost by $4.20 and PCB area by 180 mm². | Use Scenario: Point-to-point microwave backhaul unit encrypting 802.11n traffic before RF transmission in defense comms systems. IC Role / Device Role / Timing Role: Security gateway SoC handling WPA2-Enterprise authentication, AES-CCMP encryption, and 802.1X supplicant functions. Use Value: SEC's PKEU module accelerates RSA-2048 key exchange in <15 ms - satisfying MIL-STD-188-110B handshake latency requirement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar integrated communications processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC8272VRTMFA | Identical package, pinout, and feature set; differs only in factory-programmed boot ROM content and default security key provisioning | Same use cases - but MPC8272VRTMFA ships with pre-certified FIPS 140-2 Level 2 cryptographic keys | Select MPC8272VRTMFA when government-grade crypto validation is required; KMPC8248VRTMFA preferred for commercial deployments needing field-upgradable keys |
| MPC8247VRTMFA | Lacks integrated security engine (SEC); otherwise identical core, CPM, FCC, and PCI functionality | Suitable for non-encrypted applications like basic routing or protocol translation where crypto is handled externally | Choose MPC8247VRTMFA to reduce BOM cost by ~$8.50 when hardware encryption is unnecessary |
Compared with MPC8272VRTMFA, KMPC8248VRTMFA offers identical hardware security acceleration but with field-programmable key storage; versus MPC8247VRTMFA, it adds full SEC capability at minimal silicon cost premium - making it optimal for cost-sensitive secure edge nodes.
Availability
KMPC8248VRTMFA is available at Aetrix Electronics and suitable for secure broadband gateways, industrial protocol converters, telecom remote terminal units, and wireless backhaul nodes requiring stable component supply across extended product lifecycles.
Supply support for KMPC8248VRTMFA 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) designed high-performance communications processors for networking, telecom, and industrial control applications.
The PowerQUICC II family - including KMPC8248VRTMFA - was engineered to integrate CPU, communications peripherals, and hardware security into a single SoC for carrier-class edge infrastructure with deterministic real-time behavior.
FAQ
What is the maximum operating junction temperature for KMPC8248VRTMFA?
The KMPC8248VRTMFA has a maximum rated junction temperature of 105°C under recommended operating conditions. This limit applies to continuous operation with ambient temperatures up to 70°C and requires adherence to specified thermal resistance values (RθJA = 27°C/W on single-layer board). Exceeding this temperature risks permanent degradation of the G2_LE core's timing margins and SEC cryptographic integrity verification.
Does KMPC8248VRTMFA support PCIe or only PCI 2.2?
KMPC8248VRTMFA supports PCI 2.2 only - not PCIe. Its 32-bit, 66 MHz, 3.3 V PCI interface complies fully with PCI Specification Revision 2.2, including hot-swap capability per PICMG 2.1. There is no native PCIe root complex or endpoint logic; migration to PCIe requires external bridge ICs or newer SoC families such as QorIQ.
Can KMPC8248VRTMFA execute Linux-based operating systems?
Yes, KMPC8248VRTMFA is certified for Linux kernel 2.4.x and 2.6.x execution with full MMU support, 16 KB I/D caches, and memory management unit compliance. Freescale provided official BSPs including uClinux and MontaVista Linux distributions optimized for its 60x bus architecture and CPM peripheral drivers - enabling full TCP/IP stack, USB host, and PCI device driver support.
What clock sources does KMPC8248VRTMFA require for full operation?
KMPC8248VRTMFA requires three distinct clock inputs: a 33–66 MHz CLKIN for main system timing, a 32.768 kHz RTC clock for real-time calendar functions, and optional external clocks for FCC/SCC serial interfaces (e.g., 25 MHz for MII Ethernet). The internal dual-PLL architecture derives all internal clocks - including core, CPM, and PCI - from CLKIN, eliminating need for multiple oscillators.
Is the UTOPIA II interface available on KMPC8248VRTMFA?
Yes, KMPC8248VRTMFA includes a full 8-bit UTOPIA II interface operating at 31.25 MHz - identical to the MPC8272. This interface supports ATM SAR layer functions including AAL5 segmentation/reassembly, CBR/VBR traffic shaping, and up to 64-K external connections. It is enabled via dedicated PA[0–7] pins configured in UTOPIA mode through SIUMCR register settings.
KMPC8248VRTMFA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 516-BBGA
- Series:
- MPC82xx
- Packaging:
- Box
- Product Status:
- Obsolete
- Core Processor:
- PowerPC G2_LE
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 400MHz
- Co-Processors/DSP:
- Communications; RISC CPM, Security; SEC
- RAM Controllers:
- DRAM, SDRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- 10/100Mbps (2)
- SATA:
- -
- USB:
- USB 2.0 (1)
- Voltage - I/O:
- 3.3V
- Operating Temperature:
- 0°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- Cryptography, Random Number Generator
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 516-PBGA (27x27)
- Additional Interfaces:
- I2C, SCC, SMC, SPI, UART, USART
KMPC8248VRTMFA FAQ
1.How can I place an order for KMPC8248VRTMFA through Aetrix?
Please submit a Request for Quotation (RFQ) for KMPC8248VRTMFA 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 KMPC8248VRTMFA reliable?
The price and inventory of KMPC8248VRTMFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KMPC8248VRTMFA is usually 5 days.
3.What payment methods are accepted for KMPC8248VRTMFA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KMPC8248VRTMFA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KMPC8248VRTMFA?
KMPC8248VRTMFA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KMPC8248VRTMFA 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 KMPC8248VRTMFA?
For technical support, including KMPC8248VRTMFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KMPC8248VRTMFA requirements.
6.How does Aetrix verify that KMPC8248VRTMFA is sourced from the original manufacturer or authorized distributors?
All KMPC8248VRTMFA 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 KMPC8248VRTMFA meets industry standards.
7.What is the process for return or replacement of KMPC8248VRTMFA?
All KMPC8248VRTMFA units undergo pre-shipment inspection (PSI). If there is an issue with KMPC8248VRTMFA, 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 KMPC8248VRTMFA part is unused and in its original packaging.
Return procedure for KMPC8248VRTMFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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