NXP Semiconductors MC7448VU1267ND

Overview

MC7448VU1267ND from Freescale Semiconductor is a PowerPC™-compliant RISC microprocessor implementing the Power Architecture™ v1.0 instruction set, operating at 1267 MHz core frequency with 1.05 V ± 50 mV core supply voltage, rated for 0–105°C junction temperature, and packaged in RoHS-compliant BGA for high-performance embedded computing applications including telecom infrastructure and network processing.

For engineers reviewing the MC7448VU1267ND datasheet, MC7448VU1267ND pinout, MC7448VU1267ND application, or MC7448VU1267ND equivalent, this page delivers verified technical context, derating-aware power specifications, revision-level D voltage optimization, and validated alternative options for migration planning and thermal-aware system design.

Technical Context

The MC7448VU1267ND implements a superscalar, seven-stage pipeline PowerPC 74xx core with dual integer units, floating-point unit, and 1 MB on-die L2 cache. It supports Dynamic Frequency Switching (DFS) with 250–633 MHz operational range when enabled, and requires synchronous DDR memory interface timing aligned to its 1267 MHz core clock.

Its power architecture includes three low-power states-Nap, Sleep, and Deep Sleep (PLL disabled)-with thermal power consumption of 10.3 W at 105°C in Full-Power Mode and 6.0 W in Deep Sleep Mode, all measured at nominal 1.05 V supply. Voltage and frequency derating is supported down to 1000 MHz at 1.0 V ± 50 mV per Table 11.

Key Specifications

Pinout & Package

MC7448VU1267ND uses a RoHS-compliant BGA package with 599 balls (1.27 mm pitch), thermally enhanced for high-power dissipation. Pin assignment follows the MPC7448 standard ballout defined in Section 9.1 of the base hardware specification.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar RISC microprocessor applications.

Compared with MC7448VU1267ND, the NC variant trades 50 mV higher VDD for identical performance but increases thermal design complexity, while the PPC variant introduces qualification risk due to its pilot status-neither offers functional or pinout equivalence without engineering review.

Availability

MC7448VU1267ND is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and avionics applications requiring stable component supply, long-lifecycle support, and revision-controlled silicon for certified deployments.

Supply support for MC7448VU1267ND 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, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MPC7448 product line delivers high-performance PowerPC-based microprocessors targeting real-time control, signal processing, and packet forwarding in mission-critical embedded systems.

FAQ

What is the core supply voltage requirement for MC7448VU1267ND?

The MC7448VU1267ND requires a nominal core supply voltage of 1.05 V ± 50 mV, as specified in Table 4 and confirmed for revision level D devices in Table 17. This voltage is distinct from the 1.1 V used by revision C variants (e.g., MC7448VU1267NC) and is optimized to reduce dynamic power consumption while sustaining 1267 MHz operation. Deviation beyond ±50 mV risks timing violations or instability.

Does MC7448VU1267ND support dynamic frequency scaling?

Yes, MC7448VU1267ND supports Dynamic Frequency Switching (DFS) with a core frequency range of 250–633 MHz when enabled, as defined in Table 8. This feature allows runtime clock reduction without reset, enabling power-aware scheduling in bursty workloads. DFS mode is controlled via the PLL_CFG register and requires proper SYSCLK configuration to maintain valid VCO and bus frequencies.

What package type does MC7448VU1267ND use?

MC7448VU1267ND uses a RoHS-compliant BGA package, indicated by the "VU" prefix in its part number per Table 17. It features 599 balls with 1.27 mm pitch and thermal enhancement for high-power dissipation. The ballout matches the standard MPC7448 BGA layout, ensuring compatibility with existing PCB footprints designed for VU-series variants.

How does MC7448VU1267ND differ from MC7448VU1267NC?

MC7448VU1267ND operates at 1.05 V ± 50 mV, while MC7448VU1267NC requires 1.1 V ± 50 mV for the same 1267 MHz frequency. This 50 mV reduction lowers typical thermal power from 10.3 W to 8.4 W at 105°C (Table 7), easing thermal design. Both share identical pinout, instruction set, and package-but voltage rails and decoupling must be redesigned for the ND variant.

Is MC7448VU1267ND suitable for extended temperature applications?

No, MC7448VU1267ND is rated for 0–105°C junction temperature only, as stated in Table A and Section 4. It is not qualified for extended industrial (–40 to 125°C) or automotive temperature ranges. For such environments, engineers must verify thermal margin using worst-case power data (12.0 W max at 105°C) and confirm board-level cooling meets derating curves in Section 5.3.