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NXP Semiconductors MC7448VU1600LD
- Part No.:
- MC7448VU1600LD
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 360-CBGA, FCCBGA
- Datasheet:
-
MC7448VU1600LD.pdf
- Description:
- IC MPU MPC74XX 1.6GHZ 360FCCBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,850
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Product details
Overview
MC7448VU1600LD from Freescale Semiconductor is a 1600 MHz PowerPC G4 RISC microprocessor with integrated 1-Mbyte unified L2 cache, IEEE 754-compliant double-precision FPU, and AltiVec SIMD engine. It implements the PowerPC instruction set v1.0 on 90 nm SOI CMOS, targeting high-performance networking and computing systems requiring deterministic real-time processing, media acceleration, and cache-coherent multiprocessing.
For engineers reviewing the MC7448VU1600LD datasheet, MC7448VU1600LD pinout, MC7448VU1600LD application, or MC7448VU1600LD equivalent, key selection criteria include its 1600 MHz core frequency at 1.25 V, support for dynamic frequency switching (DFS) to 800/400 MHz, 360-ball ceramic BGA (HCTE) package, and hardware-enforced MESI coherency for multi-CPU designs.
Technical Context
The MC7448VU1600LD features a seven-stage superscalar pipeline with up to three instructions plus one branch dispatched per cycle, 12-entry instruction queue, and 16-entry out-of-order execution window. Its memory subsystem includes separate 32-Kbyte 8-way L1 instruction and data caches with PLRU replacement, and an on-die 1-Mbyte 8-way unified L2 cache supporting ECC or parity on data and parity on tags.
It integrates dual MMUs with 128-entry 2-way TLBs, hardware page table walk, and BAT-based address translation for 4-Kbyte pages and 256-Mbyte segments. The processor supports big- and little-endian modes, JTAG/COP debug interface, time base counter/decrementer, and thermal diode for junction temperature monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 1600 MHz - Enables high-throughput packet processing and real-time signal analysis in telecom infrastructure. |
| Core Voltage | 1.25 V ± 50 mV - Defines power delivery requirements and thermal budget for system-level voltage regulator design. |
| L2 Cache Size | 1 Mbyte unified - Reduces off-chip memory bandwidth pressure and latency for streaming workloads in routers and media gateways. |
| Process Technology | 90 nm CMOS SOI - Delivers improved leakage control and thermal performance over bulk CMOS for sustained high-frequency operation. |
| Thermal Resistance | RθJA = 26°C/W (1s board) - Determines minimum heatsink size and airflow needed to maintain Tj ≤ 105°C under full load. |
| I/O Voltage Support | 1.5 V / 1.8 V / 2.5 V - Allows backward compatibility with legacy bus interfaces while enabling migration to lower-voltage I/O standards. |
| Dynamic Frequency Switching | Divide-by-2 and divide-by-4 modes - Enables runtime power scaling without software reconfiguration, critical for fanless embedded systems. |
Pinout & Package
MC7448VU1600LD is housed in a surface-mount 360-ball ceramic ball grid array (HCTE) package with 1.27 mm pitch, designed for high-reliability industrial and telecom applications. The package supports controlled impedance routing, thermal vias to internal ground plane, and mechanical stability under thermal cycling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core Power Supply | 1.25 V input for processor core logic; requires low-noise regulation and local decoupling near ball array center. |
| OVDD | I/O Power Supply | Configurable 1.5/1.8/2.5 V supply for all bus drivers; voltage mode selected by BVSEL[0:1] pins at HRESET negation. |
| HRESET | Asynchronous Reset Input | Active-low global reset; must be held asserted ≥ 100 ns after power stabilization before release. |
| TCK/TDI/TDO/TMS/TRST | JTAG Boundary-Scan Interface | IEEE 1149.1-compliant test and debug port; operates at OVDD voltage level with dedicated pull-up resistors. |
| CLKIN | Differential Clock Input | Accepts LVDS or SSTL_2 clock source; feeds PLL for internal core and bus clock generation. |
| ADDR[0:35] | Physical Address Bus | 36-bit multiplexed address lines for MPX bus protocol; supports 32-bit or 36-bit physical addressing depending on configuration. |
| DATA[0:63] | 64-bit Data Bus | Double-word wide bidirectional data path; supports burst transfers and cache-line-aligned accesses for L1/L2 efficiency. |
Key Features
| Feature | Design Value |
|---|---|
| AltiVec SIMD Engine | Four vector units (VIU1/VIU2/VFPU/VPU) with 32-entry VR file enable real-time video encode/decode and DSP filtering without external coprocessors. |
| Hardware Cache Coherency | MESI protocol enforcement across L1 data cache ensures atomicity and consistency in symmetric multiprocessing (SMP) configurations with multiple MC7448VU1600LD CPUs. |
| Out-of-Order Execution | 16-instruction window with 16 GPR/FPR/VR rename buffers hides memory latency and improves IPC for irregular code patterns in network stack processing. |
| L2 Cache ECC Support | 64-bit ECC on L2 data detects and corrects single-bit errors, meeting reliability requirements for carrier-grade control plane applications. |
| Thermal Diode Integration | On-die temperature sensor enables closed-loop thermal management via system controller, eliminating need for external thermal ICs. |
| Power Management States | Nap, Sleep, and Deep Sleep modes reduce dynamic and leakage power by >90%, supporting energy-constrained edge compute platforms. |
Applications
| Telecom Router Control Plane | Media Gateway Signal Processing |
|---|---|
|
Use Scenario: Real-time routing table updates, BGP session management, and firewall rule enforcement in Layer 3 carrier routers. IC Role / Device Role / Timing Role: Primary control processor executing Linux-based network OS with deterministic interrupt latency and SMP-aware scheduler. Use Value: 1600 MHz core + 1-Mbyte L2 cache delivers sub-millisecond packet classification and forwarding decisions under full routing table load. |
Use Scenario: Transcoding between VoIP codecs (G.711, G.729, AMR-WB) and transcoding MPEG-2/AVC video streams in IMS media servers. IC Role / Device Role / Timing Role: AltiVec-accelerated DSP engine performing parallel vector arithmetic on audio/video sample blocks. Use Value: Native AltiVec instructions execute 16×16-bit multiply-accumulate in single cycle, enabling 64 concurrent VoIP channels per CPU. |
| Industrial Automation Controller | Defense Radar Signal Processor |
|
Use Scenario: Deterministic motion control loop execution with synchronized I/O scanning and EtherCAT master timing. IC Role / Device Role / Timing Role: Real-time application processor running VxWorks with time-base counter and decrementer for µs-accurate task scheduling. Use Value: Hardware-enforced cache coherency and DFS allow seamless transition between high-speed control loops and low-power standby without software intervention. |
Use Scenario: Pulse-Doppler radar beamforming and CFAR detection in airborne electronic warfare systems operating in extended temperature range. IC Role / Device Role / Timing Role: High-reliability compute node executing floating-point FFTs and matrix operations with ECC-protected L2 cache. Use Value: IEEE 754 double-precision FPU and L2 ECC ensure numerical integrity across 100+ ms coherent integration periods in jamming environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RISC microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC7447AVU1600LD | Identical microarchitecture but lacks L2 ECC support and DFS divide-by-four mode; same 1600 MHz speed grade and 360-ball HCTE package. | Suitable for cost-sensitive telecom access equipment where ECC is not mandated by safety standards. | Select MPC7447AVU1600LD only if L2 error correction and deepest power-down mode are unnecessary for the target application. |
| MPC7448VU1420LD | Same die and feature set, but rated for 1420 MHz at 1.20 V; lower thermal envelope (Tj max 105°C) and reduced power consumption at full load. | Better suited for convection-cooled industrial controllers where 1600 MHz headroom is unused and thermal margin is constrained. | Choose MPC7448VU1420LD when system-level thermal design cannot accommodate 1600 MHz full-power dissipation of MC7448VU1600LD. |
Compared with MPC7447AVU1600LD, MC7448VU1600LD adds mission-critical L2 ECC and deeper DFS for fail-safe operation; compared with MPC7448VU1420LD, it delivers 12.7% higher deterministic throughput at the cost of +15% peak power and tighter thermal design constraints.
Availability
MC7448VU1600LD is available at Aetrix Electronics and suitable for telecom infrastructure, defense electronics, industrial automation, and broadcast media systems requiring stable component supply across long product lifecycles.
Supply support for MC7448VU1600LD 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 MPC7448 product line was engineered for high-performance, thermally constrained embedded computing in carrier-grade networking and real-time signal processing applications, emphasizing cache coherency, deterministic latency, and hardware-assisted reliability.
FAQ
What is the maximum operating junction temperature for MC7448VU1600LD?
The MC7448VU1600LD has a maximum die-junction temperature (Tj) of 105°C under recommended operating conditions. This limit applies across all supported I/O voltage modes and core frequencies. Thermal design must ensure that junction temperature remains within this specification during sustained full-power operation, especially when using the 1600 MHz speed grade with its higher power density. The integrated thermal diode provides direct measurement capability for closed-loop thermal management.
Does MC7448VU1600LD support pin-compatible upgrades from earlier MPC7447A devices?
MC7448VU1600LD uses the same 360-ball HCTE package and MPX bus interface as MPC7447A, enabling PCB reuse in many cases. However, BVSEL pin configuration for 1.8 V I/O mode differs between the two, and MC7448VU1600LD requires updated power sequencing due to its tighter core voltage tolerance (±50 mV at 1.25 V). Full functional validation is required before drop-in replacement, particularly for DFS and L2 ECC initialization sequences.
How does the L2 cache ECC implementation work in MC7448VU1600LD?
The MC7448VU1600LD implements 64-bit ECC on L2 data storage, detecting and correcting all single-bit errors and detecting multi-bit errors. ECC is enabled by default at reset and operates transparently to software. Error injection capability allows validation of error recovery firmware. Unlike parity-only implementations, this ECC scheme meets telecom GR-63-CORE reliability requirements for control plane processors handling critical routing state.
What bus protocols does MC7448VU1600LD support for main memory interfacing?
The MC7448VU1600LD supports the MPX bus protocol as its primary system interface, along with a subset of the 60x bus protocol for backward compatibility with legacy PowerPC peripherals. It does not support PCI Express, DDR SDRAM native controllers, or AMBA buses. Memory controllers must implement MPX timing and coherency semantics, including snoop push/intervention handling and castout queue management as defined in the MPC7448 hardware specification.
Can MC7448VU1600LD operate in little-endian mode for x86-compatible software porting?
Yes, MC7448VU1600LD supports both big-endian and little-endian operation modes, including misaligned little-endian accesses. Endianness is configured via the MSR[LE] bit and can be changed dynamically during runtime. This capability enables porting of Linux distributions and application binaries originally developed for x86 architectures, though instruction set translation is not performed - software must be recompiled for PowerPC ISA.
MC7448VU1600LD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 360-CBGA, FCCBGA
- Series:
- MPC74xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Core Processor:
- PowerPC G4
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 1.6GHz
- Co-Processors/DSP:
- Multimedia; SIMD
- RAM Controllers:
- -
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- 1.5V, 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:
- -
MC7448VU1600LD FAQ
1.How can I place an order for MC7448VU1600LD through Aetrix?
Please submit a Request for Quotation (RFQ) for MC7448VU1600LD 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 MC7448VU1600LD reliable?
The price and inventory of MC7448VU1600LD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC7448VU1600LD is usually 5 days.
3.What payment methods are accepted for MC7448VU1600LD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC7448VU1600LD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC7448VU1600LD?
MC7448VU1600LD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC7448VU1600LD 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 MC7448VU1600LD?
For technical support, including MC7448VU1600LD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC7448VU1600LD requirements.
6.How does Aetrix verify that MC7448VU1600LD is sourced from the original manufacturer or authorized distributors?
All MC7448VU1600LD 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 MC7448VU1600LD meets industry standards.
7.What is the process for return or replacement of MC7448VU1600LD?
All MC7448VU1600LD units undergo pre-shipment inspection (PSI). If there is an issue with MC7448VU1600LD, 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 MC7448VU1600LD part is unused and in its original packaging.
Return procedure for MC7448VU1600LD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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