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NXP Semiconductors MC7447AVU1167NB
- Part No.:
- MC7447AVU1167NB
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 360-BCBGA, FCCBGA
- Datasheet:
-
MC7447AVU1167NB.pdf
- Description:
- IC MPU MPC74XX 1.167GHZ 360BGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MC7447AVU1167NB from Freescale Semiconductor is a 32-bit PowerPC G4 RISC microprocessor with 512-Kbyte unified L2 cache, 32-Kbyte L1 instruction and data caches, and AltiVec™ SIMD engine. It operates at 1.167 GHz core frequency with 1.3 V core supply and supports MPX/60x bus protocols for high-performance networking and embedded computing systems.
For engineers reviewing the MC7447AVU1167NB datasheet, MC7447AVU1167NB pinout, MC7447AVU1167NB application, or MC7447AVU1167NB equivalent, key selection considerations include dynamic frequency switching (DFS), integrated temperature diode, 360-ball ceramic BGA package, IEEE 754-compliant FPU, and hardware-enforced MESI cache coherency for multiprocessor designs.
Technical Context
The MC7447AVU1167NB implements a seven-stage superscalar pipeline with up to 16 in-flight instructions, three independent issue queues (FIQ/VIQ/GIQ), and eleven execution units including four integer, five vector, and one scalar floating-point unit. It features dual MMUs with 128-entry two-way TLBs and 8 IBAT/DBAT registers for 52-bit virtual addressing.
Its memory subsystem includes physically indexed L1 caches with PLRU replacement, 9-cycle L1 miss latency on L2 hit, and full pipelining between L1 and L2 (256-bit interface). The processor supports big- and little-endian modes, hits-under-misses, store merging, and hardware reloadable TLBs with both software- and hardware-assisted page table walks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 1.167 GHz - fixed speed grade confirmed by part number suffix "1167"; enables deterministic timing for real-time networking stacks. |
| L2 Cache | 512-Kbyte unified, eight-way set-associative - reduces main memory bandwidth pressure in packet forwarding applications. |
| L1 Caches | 32-Kbyte instruction + 32-Kbyte data, eight-way set-associative - supports four-instruction fetch per cycle and four-word load per cycle. |
| Power Supply | 1.3 V ± 50 mV core (VDD), 1.8 V or 2.5 V I/O (OVDD) - dual-voltage support enables migration from legacy 2.5 V to low-power 1.8 V system buses. |
| Thermal Management | Integrated temperature diode + DFS - allows runtime halving of core frequency to reduce power by ~50% in thermal-constrained environments. |
| Package | 360-ball ceramic BGA (HCTE) - RoHS-compliant surface-mount package with 26°C/W θJA on single-layer board for industrial thermal design. |
| Process Technology | 0.13-μm CMOS, nine-metal layer - enables 48.6 million transistor density while maintaining 105°C max junction temperature. |
Pinout & Package
MC7447AVU1167NB uses a 360-ball ceramic ball grid array (HCTE) package with 1.27 mm ball pitch, designed for high-reliability industrial and networking applications. Thermal resistance is 10°C/W junction-to-board (RθJB), supporting conduction-cooled module integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BVSEL | Bus Voltage Select | Determines OVDD reference: logic 0 selects 1.8 V I/O mode; HRESET or logic 1 selects 2.5 V mode - must be sampled at HRESET negation. |
| HRESET | Hardware Reset Input | Asynchronous active-low reset that initializes all internal state, disables PLL, and forces boot sequence - requires minimum 100 ns pulse width. |
| CLKIN | System Clock Input | Accepts differential or single-ended SYSCLK reference (e.g., 116.7 MHz for 1.167 GHz core via 10× PLL) - drives PLL_CFG[0:4] configuration. |
| TCK/TMS/TDI/TDO | JTAG Boundary-Scan Interface | IEEE 1149.1-compliant test access port enabling in-system debug, flash programming, and structural testing without physical probe contact. |
| VDD/VSS | Core Power/Ground | 1.3 V ± 50 mV DC supply with dedicated decoupling - 36 VDD and 36 VSS balls distributed across package for low-impedance PDN and EMI control. |
| OVDD/OVSS | I/O Power/Ground | 1.8 V or 2.5 V supply pins - separate from core domain to allow mixed-voltage signaling and reduce noise coupling into analog-sensitive PLL circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Frequency Switching (DFS) | Software-controlled halving of core clock (e.g., 1.167 GHz → 583.5 MHz) to cut dynamic power by ~50% without changing voltage or firmware flow. |
| AltiVec™ SIMD Engine | Four vector units (VIU1/VIU2/VFPU/VPU) with 32-entry VR file - accelerates packet classification, encryption, and media processing in single-cycle throughput for vector ops. |
| Cache Coherency | Hardware-enforced MESI protocol across L1 data cache - eliminates need for software cache flush/invalidate in SMP configurations with multiple MC7447AVU1167NB processors. |
| Branch Prediction | 128-entry BTIC + 2048-entry BHT + 8-entry link stack - achieves >95% branch prediction accuracy in network stack workloads, reducing misprediction penalty to 6 cycles. |
| Memory Management | Dual MMUs with 128-entry TLBs and 8 IBAT/DBAT registers - supports 4-Kbyte pages, 256-Mbyte segments, and variable-sized blocks for flexible OS memory mapping. |
Applications
| Network Router Control Plane | Industrial Real-Time Controller |
|---|---|
Use Scenario: Executes routing protocol stacks (BGP/OSPF) and management agents in carrier-grade edge routers with deterministic interrupt latency. IC Role / Device Role / Timing Role: Primary application processor handling control-plane tasks while offloading data-plane forwarding to ASICs or NPUs. Use Value: 1.167 GHz clock and 512-Kbyte L2 enable sub-100 μs route convergence times; DFS allows thermal throttling during traffic bursts without service interruption. |
Use Scenario: Runs deterministic real-time OS (e.g., VxWorks) in programmable logic controller (PLC) backplanes requiring <1 ms I/O scan cycles. IC Role / Device Role / Timing Role: Central deterministic execution unit managing fieldbus interfaces (CANopen, Profibus), motion control loops, and safety monitoring. Use Value: Hardware-enforced cache coherency and precise exception model ensure predictable worst-case execution time (WCET); temperature diode enables closed-loop thermal derating. |
| Secure Gateway Appliance | High-Performance Media Server |
Use Scenario: Performs TLS/SSL acceleration and deep packet inspection in enterprise firewalls with multi-gigabit throughput requirements. IC Role / Device Role / Timing Role: Host CPU executing crypto middleware and DPI engines, interfacing with dedicated crypto accelerators via MPX bus. Use Value: AltiVec™ unit executes AES-NI-equivalent operations at 1.167 GHz; 32-Kbyte L1 caches minimize latency for session-state lookups in hash tables. |
Use Scenario: Transcodes video streams (H.264/MPEG-4) in broadcast infrastructure using software-based encoding pipelines. IC Role / Device Role / Timing Role: General-purpose compute engine leveraging SIMD parallelism for pixel-level operations across multiple concurrent streams. Use Value: Vector permute and floating-point units deliver 4× speedup over scalar code for chroma subsampling and DCT; L2 prefetch hides DDR2 memory latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RISC microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC7447AVU1267NB | Higher-speed grade: 1.267 GHz core (vs. 1.167 GHz); identical cache, package, and feature set. | Required where sustained 1.2+ GHz throughput is needed for control-plane packet processing under full load. | Select only if benchmarking confirms measurable performance gain beyond thermal/power budget limits of MC7447AVU1167NB. |
| MPC7447AVU1000NB | Lower-speed grade: 1.000 GHz core; same 512-Kbyte L2, AltiVec, DFS, and thermal diode. | Suitable for cost-sensitive industrial controllers where 1 GHz suffices for deterministic I/O scanning and HMI rendering. | Preferred when thermal envelope or power supply capacity restricts operation above 1.0 GHz - reduces cooling complexity and BOM cost. |
Compared with MC7447AVU1167NB, the 1267NB offers higher deterministic throughput at increased power and thermal load, while the 1000NB trades clock speed for lower cooling requirements and power draw - all share identical pinout, software compatibility, and peripheral support.
Availability
MC7447AVU1167NB is available at Aetrix Electronics and suitable for networking infrastructure, industrial automation, and secure communications equipment requiring stable component supply across extended product lifecycles.
Supply support for MC7447AVU1167NB 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) is a fabless semiconductor company specializing in embedded processing, connectivity, and analog solutions for automotive, industrial, and networking markets.
The MPC7447A product line was engineered for high-reliability, thermally constrained embedded computing - delivering G4 PowerPC performance with integrated thermal sensing, dynamic power scaling, and hardware coherency for multi-processor control systems.
FAQ
What is the maximum operating junction temperature for MC7447AVU1167NB?
The MC7447AVU1167NB has a maximum rated die-junction temperature of 105°C under recommended operating conditions. This limit applies during full-power operation at 1.167 GHz and 1.3 V core supply. Thermal design must ensure junction temperature remains below this threshold using appropriate heatsinking, airflow, or DFS activation to prevent thermal shutdown or reliability degradation.
Does MC7447AVU1167NB support both 1.8 V and 2.5 V I/O interfaces?
Yes, MC7447AVU1167NB supports dual I/O voltage modes via the BVSEL pin. When BVSEL is held low, the processor operates with 1.8 V ± 5% OVDD; when BVSEL is asserted high or tied to HRESET, it operates with 2.5 V ± 5% OVDD. Input thresholds and output drive strengths are automatically configured based on BVSEL state sampled at HRESET negation.
Is MC7447AVU1167NB pin-compatible with other MPC7447A speed grades?
Yes, MC7447AVU1167NB is footprint-compatible and electrically identical to other MPC7447A variants (e.g., MC7447AVU1000NB, MC7447AVU1267NB) in the same 360-ball HCTE package. All share identical pin assignments, power sequencing, and signal definitions - only core frequency and tested AC timing differ.
What debugging interfaces does MC7447AVU1167NB provide?
MC7447AVU1167NB includes a full IEEE 1149.1 JTAG boundary-scan interface (TCK/TMS/TDI/TDO/TRST) for in-circuit test and debug, plus COP (Controller On Processor) interface for real-time tracing and breakpoint control. These interfaces enable non-intrusive firmware development, flash programming, and hardware validation without requiring external probes.
How does Dynamic Frequency Switching (DFS) function in MC7447AVU1167NB?
In MC7447AVU1167NB, DFS allows software to halve the core clock frequency (e.g., 1.167 GHz → 583.5 MHz) while maintaining 1.3 V core supply, reducing dynamic power consumption by approximately 50%. The transition is atomic and preserves architectural state, enabling seamless thermal management without OS or application intervention.
MC7447AVU1167NB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 360-BCBGA, FCCBGA
- Series:
- MPC74xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Core Processor:
- PowerPC G4
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 1.167GHZ
- Co-Processors/DSP:
- Multimedia; SIMD
- RAM Controllers:
- -
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- 1.8V, 2.5V
- Operating Temperature:
- 0°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 360-FCCBGA (25x25)
- Additional Interfaces:
- -
MC7447AVU1167NB FAQ
1.How can I place an order for MC7447AVU1167NB through Aetrix?
Please submit a Request for Quotation (RFQ) for MC7447AVU1167NB 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 MC7447AVU1167NB reliable?
The price and inventory of MC7447AVU1167NB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC7447AVU1167NB is usually 5 days.
3.What payment methods are accepted for MC7447AVU1167NB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC7447AVU1167NB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC7447AVU1167NB?
MC7447AVU1167NB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC7447AVU1167NB 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 MC7447AVU1167NB?
For technical support, including MC7447AVU1167NB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC7447AVU1167NB requirements.
6.How does Aetrix verify that MC7447AVU1167NB is sourced from the original manufacturer or authorized distributors?
All MC7447AVU1167NB 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 MC7447AVU1167NB meets industry standards.
7.What is the process for return or replacement of MC7447AVU1167NB?
All MC7447AVU1167NB units undergo pre-shipment inspection (PSI). If there is an issue with MC7447AVU1167NB, 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 MC7447AVU1167NB part is unused and in its original packaging.
Return procedure for MC7447AVU1167NB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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