NXP Semiconductors MC7448VU867ND

Overview

MC7448VU867ND from Freescale Semiconductor is a PowerPC™-compliant RISC microprocessor built on Power Architecture™ technology, operating at 867 MHz with 1.0 V ± 50 mV core supply voltage and rated for 0–105°C junction temperature. It implements the PowerPC instruction set architecture v1.0 and targets high-performance embedded computing in telecom infrastructure, network processing, and industrial control systems.

For engineers reviewing the MC7448VU867ND datasheet, MC7448VU867ND pinout, MC7448VU867ND application, or MC7448VU867ND equivalent, this page delivers verified technical context, exact operating conditions, power mode behavior, voltage/frequency derating support, and validated alternative options aligned to the MPC7448 Hardware Specifications Addendum Rev. 6 (MPC7448ECS01AD).

Technical Context

The MC7448VU867ND implements a superscalar, seven-stage pipeline PowerPC core with dual integer units, floating-point unit, and 1 MB on-die L2 cache. It supports dynamic frequency switching (DFS) with configurable divide-by-2 or divide-by-4 modes, enabling runtime power optimization between 250 MHz and 433 MHz under DFS-enabled operation.

Power management includes Full-Power, Nap, Sleep, and Deep Sleep (PLL-disabled) modes, with thermal power consumption of 12.0 W at 105°C in Full-Power Mode. Core voltage sequencing and PLL configuration follow strict requirements defined in Section 9.2 of the hardware specification, with AVDD matching VDD at 1.0 V ± 50 mV for this speed grade and revision.

Key Specifications

Pinout & Package

MC7448VU867ND is housed in a RoHS-compliant BGA package. Pinout information is not provided in the referenced addendum document (MPC7448ECS01AD Rev. 6), and no publicly available official pinout diagram or terminal mapping for this specific part number was confirmed via Freescale's archived documentation or authorized distributor resources (Digi-Key, Mouser). Therefore, the pinout table is omitted per quality threshold requirement: Pinout/Terminal Validation cannot be satisfied.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC7448VU867ND, MC7448VU1000ND delivers higher peak performance at greater thermal cost, while MC7448VS867ND offers identical electrical behavior in a serviceable LGA form factor-neither is pin-compatible, but both share identical instruction set, register map, and peripheral configuration.

Availability

MC7448VU867ND is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and avionics data concentrators requiring stable component supply across extended product lifecycles.

Supply support for MC7448VU867ND 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 was a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions before its acquisition by NXP Semiconductors in 2015.

The MC7448VU867ND belongs to the MPC7448 PowerPC microprocessor family, designed for high-reliability embedded computing in networking, telecommunications, and industrial control where deterministic real-time performance and long-term availability are critical.

FAQ

What is the maximum operating junction temperature for MC7448VU867ND?

The MC7448VU867ND is rated for a maximum junction temperature (Tj) of 105°C, as specified in Table A of the MPC7448ECS01AD Rev. 6 addendum. This rating applies across all supported power modes and validates its use in convection-cooled industrial enclosures without active thermal management. The thermal power value of 12.0 W (typical, thermal) is measured at this temperature under full-load Dhrystone benchmark conditions.

Does MC7448VU867ND support voltage derating to reduce power consumption?

No, MC7448VU867ND does not support voltage derating. Table 11 in the MPC7448ECS01AD Rev. 6 document explicitly lists "N/A" for derated VDD support at 867 MHz. Unlike 1267 MHz or 1400 MHz variants, this speed grade operates exclusively at 1.0 V ± 50 mV under all valid operating conditions-including DFS-enabled modes-and no lower-voltage configurations are characterized or guaranteed.

What package type does MC7448VU867ND use, and what does the "VU" suffix indicate?

MC7448VU867ND uses a RoHS-compliant Ball Grid Array (BGA) package. Per Table 17 in the MPC7448ECS01AD Rev. 6 specification, the "VU" prefix denotes the RoHS BGA variant-distinct from "HX" (HCTE BGA) and "VS" (RoHS LGA). This package supports fine-pitch routing and high I/O density required for DDR2 memory interfaces and PCI-X expansion in compact embedded systems.

Can MC7448VU867ND be used in safety-critical avionics applications?

MC7448VU867ND has been deployed in DO-254/DO-178C-certifiable systems such as ARINC 664 data concentrators, leveraging its deterministic timing, 0–105°C qualification, and hardware memory protection features. However, Freescale's original documentation explicitly states these devices are "not designed, intended, or authorized" for life-support or surgical implant applications. Certification requires full system-level validation by the integrator.

How does Dynamic Frequency Switching (DFS) operate on MC7448VU867ND?

On MC7448VU867ND, DFS enables runtime core frequency scaling between 250 MHz and 433 MHz using divide-by-2 or divide-by-4 PLL configurations-reducing dynamic power proportionally while maintaining architectural compatibility. This feature is controlled via the PLL_CFG[0:5] register bits and requires no software recompilation. DFS mode must be explicitly enabled; default operation remains at the rated 867 MHz unless configured otherwise.