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NXP Semiconductors KMC7447AHX1167NB
- Part No.:
- KMC7447AHX1167NB
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 360-BCBGA, FCCBGA
- Datasheet:
-
KMC7447AHX1167NB.pdf
- Description:
- IC MPU MPC74XX 1.167GHZ 360BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,256
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Product details
Overview
KMC7447AHX1167NB 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 up to 1.167 GHz core frequency with 1.3 V ±50 mV core supply and supports MPX/60x bus protocols. It targets high-performance embedded networking and computing systems requiring deterministic real-time processing.
For engineers reviewing the KMC7447AHX1167NB datasheet, KMC7447AHX1167NB pinout, KMC7447AHX1167NB application, or KMC7447AHX1167NB equivalent, key selection criteria include its 360-ball ceramic BGA (HCTE) package, dynamic frequency switching (DFS), integrated temperature diode, IEEE 754-compliant FPU, and hardware-enforced MESI cache coherency for multiprocessor designs.
Technical Context
The KMC7447AHX1167NB implements a seven-stage superscalar pipeline with four integer units, five-stage FPU, and four vector units supporting AltiVec instructions. It features separate instruction and data MMUs with 128-entry two-way set-associative TLBs, 8-way set-associative L1 caches, and an on-die 512-Kbyte eight-way unified L2 cache delivering 32 bytes/cycle to L1.
It supports dynamic frequency switching (halving core frequency via software), three low-power states (Nap, Sleep, Deep Sleep), JTAG/COP debug interface, and hardware performance monitoring. The processor uses 0.13-μm CMOS technology, includes a temperature diode, and requires dual power domains: 1.3 V core and selectable 1.8 V or 2.5 V I/O.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 1.167 GHz - Maximum guaranteed operating speed under nominal 1.3 V core supply and thermal limits. |
| L1 Cache | 32-Kbyte instruction + 32-Kbyte data - Harvard architecture, 8-way set-associative, PLRU replacement, parity-protected. |
| L2 Cache | 512-Kbyte unified - On-die, 8-way set-associative, 64-byte line size, 9-cycle L1 miss latency, parity-enabled. |
| Power Supply | 1.3 V ±50 mV (core), 1.8 V or 2.5 V ±5% (I/O) - Dual-domain operation with voltage-selectable bus interface via BVSEL pin. |
| Thermal Management | Integrated temperature diode + DFS - Enables real-time die temperature monitoring and software-triggered 50% frequency reduction for thermal mitigation. |
| Package | 360-ball ceramic BGA (HCTE) - RoHS-compliant surface-mount package with 26°C/W θJA (natural convection, 1s board). |
| Process Technology | 0.13-μm CMOS, nine-layer metal - Enables high transistor density (48.6 million transistors) and low static power leakage. |
Pinout & Package
Package: 360-ball ceramic ball grid array (HCTE), RoHS-compliant, surface-mount. Dimensions and mechanical details per Freescale MPC7447A Hardware Specifications Rev. 5, Section 8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BVSEL | Bus Voltage Select | Determines I/O voltage threshold: logic low = 1.8 V mode; logic high/HRESET = 2.5 V mode; sampled at HRESET negation. |
| HRESET | Hardware Reset Input | Asynchronous active-low reset that initializes internal state, clears caches, and resets PLL configuration registers. |
| CLKIN | System Clock Input | Accepts differential or single-ended SYSCLK reference; feeds PLL to generate core clock (1.167 GHz at 1× ratio). |
| VDD / AVDD | Core & PLL Power | 1.3 V ±50 mV supply pins; AVDD filtered separately to minimize PLL jitter; must not exceed OVDD by >1.0 V. |
| OVDD | I/O Power Supply | Provides termination voltage for all processor bus signals; output swing range is GND to OVDD; supports 1.8 V or 2.5 V. |
| THERM | Temperature Diode Output | Analog output proportional to junction temperature; used with external ADC for closed-loop thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Frequency Switching (DFS) | Software-controlled halving of core frequency reduces power consumption by ~40% in full-power mode without changing voltage or PCB layout. |
| AltiVec™ SIMD Engine | Four dedicated vector units (VIU1/VIU2/VFPU/VPU) enable parallel execution of 128-bit integer/floating-point operations for media and signal processing acceleration. |
| Hardware Cache Coherency | MESI protocol implemented in hardware for L1 data cache ensures atomicity and consistency across multiprocessor configurations without software overhead. |
| Branch Prediction Architecture | 128-entry BTIC + 2048-entry BHT + 8-entry link stack enables >95% branch prediction accuracy and minimizes misprediction penalties to 6 cycles. |
| Low-Power States | Nap (bus snooping active), Sleep (no snooping, PLL locked), Deep Sleep (PLL disabled) provide granular power control for embedded thermal budgets. |
Applications
| Telecom Baseband Processing | Industrial Control Gateway |
|---|---|
|
Use Scenario: Real-time packet classification, encryption, and QoS scheduling in carrier-grade edge routers. IC Role / Device Role / Timing Role: Primary application processor executing Linux-based network stack with hardware-accelerated crypto and traffic shaping. Use Value: 1.167 GHz core + AltiVec enables 2.3 Dhrystone MIPs/MHz throughput and deterministic sub-100 ns interrupt latency for hard real-time forwarding. |
Use Scenario: Deterministic motion control coordination across multiple EtherCAT slaves in factory automation PLCs. IC Role / Device Role / Timing Role: Central controller managing servo loop timing, safety logic, and fieldbus protocol stacks with precise time-base counter synchronization. Use Value: Integrated time base counter/decrementer and hardware performance monitor allow cycle-accurate jitter measurement and deterministic task scheduling. |
| Avionics Data Concentrator | Medical Imaging Reconstruction |
|
Use Scenario: ARINC 664 (AFDX) end-system aggregating sensor data from flight control surfaces and environmental monitors. IC Role / Device Role / Timing Role: Safety-critical deterministic processor running DO-178C-certifiable partitioned OS with hardware memory protection and ECC-capable caches. Use Value: Parity-protected L1/L2 caches, IEEE 754-compliant FPU, and JTAG boundary-scan support meet avionics functional safety requirements. |
Use Scenario: Real-time CT/MRI image reconstruction using iterative algorithms on raw k-space data streams. IC Role / Device Role / Timing Role: High-throughput compute engine performing parallel FFT, back-projection, and denoising kernels via AltiVec vector units. Use Value: 512-Kbyte L2 cache bandwidth (32 B/cycle) and 128-bit vector load/store pipelines sustain >1.8 GB/s memory bandwidth for large matrix operations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RISC microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC7447AHX1100B | 1.1 GHz core frequency, same 360-ball HCTE package, identical feature set except lower max frequency. | Suitable for thermally constrained or cost-sensitive designs where 1.167 GHz headroom is unnecessary. | Select when system thermal design cannot sustain 105°C junction temperature at 1.167 GHz. |
| MPC7447AHX1267B | 1.267 GHz core frequency, same silicon revision and package, requires tighter voltage regulation (±30 mV) and enhanced cooling. | Targeted at maximum-performance computing nodes where additional 100 MHz yields measurable throughput gain. | Choose only with validated thermal solution and AVDD filtering per Section 9.2 of MPC7447A Hardware Spec Rev. 5. |
Compared with KMC7447AHX1167NB, the MPC7447AHX1100B offers relaxed thermal/power requirements at minor performance cost, while the MPC7447AHX1267B demands stricter voltage and cooling but delivers higher deterministic throughput for latency-bound workloads.
Availability
KMC7447AHX1167NB is available at Aetrix Electronics and suitable for telecom infrastructure, industrial control gateways, and avionics data concentrators requiring stable component supply and long-term lifecycle support.
Supply support for KMC7447AHX1167NB 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 designed as a high-performance, low-power G4 PowerPC implementation targeting deterministic real-time computing in space-constrained, thermally demanding embedded systems.
FAQ
What is the maximum guaranteed operating frequency of the KMC7447AHX1167NB?
The KMC7447AHX1167NB is binned and tested to operate reliably at 1.167 GHz under nominal conditions: 1.3 V ±50 mV core supply, 65°C junction temperature, and compliant PCB layout per Freescale's MPC7447A Hardware Specifications Rev. 5. This frequency is achieved using the internal PLL with SYSCLK input and PLL_CFG[0:4] configured for 1× multiplication.
Does the KMC7447AHX1167NB support dynamic voltage scaling in addition to dynamic frequency switching?
The KMC7447AHX1167NB supports voltage derating per Section 5.3 of its hardware specification: core voltage may be reduced to 1.2 V ±50 mV to lower power, but only when core frequency is also reduced per defined derating curves. It does not support independent dynamic voltage scaling (DVS); voltage and frequency changes must follow the documented derating table to ensure functional correctness.
Is the KMC7447AHX1167NB pin-compatible with earlier MPC7447 variants?
Yes - the KMC7447AHX1167NB is a footprint-compatible, drop-in replacement for the MPC7447 in existing designs, provided the core power supply is 1.3 V. Freescale explicitly confirms this in Section 2 ("Features") of the MPC7447A Hardware Specifications Rev. 5, noting identical pinout, electrical behavior, and package dimensions between MPC7447 and MPC7447A.
What thermal management features are integrated into the KMC7447AHX1167NB?
The KMC7447AHX1167NB integrates a calibrated on-die temperature diode (THERM pin) and dynamic frequency switching (DFS). The diode provides analog voltage output proportional to junction temperature for external ADC monitoring, while DFS allows software to halve core frequency - reducing typical power by ~40% - without altering voltage or triggering reset sequences.
Which bus protocols does the KMC7447AHX1167NB natively support for system interconnect?
The KMC7447AHX1167NB supports the MPX bus protocol and a subset of the 60x bus protocol for main memory and peripheral interfacing. Its 256-bit wide L2 bus interface and configurable BVSEL pin enable compatibility with both legacy 1.8 V and newer 2.5 V system buses, as detailed in Section 4 ("General Parameters") and Table 3 of the hardware specification.
KMC7447AHX1167NB 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:
- -
KMC7447AHX1167NB FAQ
1.How can I place an order for KMC7447AHX1167NB through Aetrix?
Please submit a Request for Quotation (RFQ) for KMC7447AHX1167NB 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 KMC7447AHX1167NB reliable?
The price and inventory of KMC7447AHX1167NB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KMC7447AHX1167NB is usually 5 days.
3.What payment methods are accepted for KMC7447AHX1167NB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KMC7447AHX1167NB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KMC7447AHX1167NB?
KMC7447AHX1167NB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KMC7447AHX1167NB 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 KMC7447AHX1167NB?
For technical support, including KMC7447AHX1167NB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KMC7447AHX1167NB requirements.
6.How does Aetrix verify that KMC7447AHX1167NB is sourced from the original manufacturer or authorized distributors?
All KMC7447AHX1167NB 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 KMC7447AHX1167NB meets industry standards.
7.What is the process for return or replacement of KMC7447AHX1167NB?
All KMC7447AHX1167NB units undergo pre-shipment inspection (PSI). If there is an issue with KMC7447AHX1167NB, 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 KMC7447AHX1167NB part is unused and in its original packaging.
Return procedure for KMC7447AHX1167NB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
KMC7447AHX1167NB Tags
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