NXP Semiconductors MC7448VU1250ND

Overview

MC7448VU1250ND from Freescale Semiconductor is a PowerPC™-compliant RISC microprocessor implementing the Power Architecture™ technology, operating at 1250 MHz core frequency with 1.1 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 MC7448VU1250ND datasheet, MC7448VU1250ND pinout, MC7448VU1250ND application, or MC7448VU1250ND equivalent, key selection criteria include verified thermal power consumption (12.6 W max at 105°C), dynamic frequency switching support, full-power/nap/sleep/deep-sleep mode power states, and compatibility with MPC7448 hardware specification Rev. 3+ addenda.

Technical Context

The MC7448VU1250ND implements the PowerPC instruction set architecture v1.0 with a superscalar, out-of-order execution core, integrated L2 cache controller, and dual 64-bit DDR memory interface. It supports Dynamic Frequency Switching (DFS) with 250–625 MHz core frequency range when enabled, and requires precise PLL configuration via PLL_CFG[0:5] to maintain valid SYSCLK, core, and VCO frequencies.

Power delivery mandates independent filtering for AVDD (PLL supply) and VDD (core supply), with sequencing compliance per MPC7448 Hardware Specifications. Voltage and frequency derating is supported: at 1.0 V ± 50 mV, maximum core frequency reduces to 1000 MHz, lowering full-power mode thermal power from 12.6 W to 7.3 W.

Key Specifications

Pinout & Package

MC7448VU1250ND is housed in a RoHS-compliant Ball Grid Array (BGA) package. Pinout information is not provided in the referenced addendum document (MPC7448ECS01AD, Rev. 6); official MPC7448 Hardware Specifications must be consulted for complete terminal mapping, signal grouping, and power/ground ball assignments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC7448VU1250ND, MC7448VU1267ND offers +17 MHz performance at lower voltage (1.05 V vs. 1.1 V), while MC7448VS1250ND retains identical electrical specs but shifts to LGA for enhanced thermal serviceability - both require no logic or software changes but differ in mechanical integration and power delivery validation scope.

Availability

MC7448VU1250ND is available at Aetrix Electronics and suitable for telecom infrastructure, network equipment, and industrial control systems requiring stable component supply across extended product lifecycles and controlled obsolescence management.

Supply support for MC7448VU1250ND 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. It pioneered Power Architecture™ implementations for high-reliability applications.

The MPC7448 product line was designed for high-performance embedded computing in thermally constrained environments, targeting telecom base stations, network processors, and real-time industrial controllers requiring deterministic PowerPC execution and multi-gigabyte memory bandwidth.

FAQ

What is the maximum junction temperature specification for MC7448VU1250ND?

The MC7448VU1250ND is rated for a maximum junction temperature of 105°C under full-power operation. This value is confirmed in Table A of the MPC7448ECS01AD Rev. 6 addendum and defines the upper thermal limit for sustained 1250 MHz operation. Thermal design must ensure die temperature remains at or below this threshold using appropriate heatsinking, airflow, and PCB copper mass - exceeding 105°C risks timing violations and accelerated electromigration failure. The MC7448VU1250ND datasheet specifies derating curves for operation above 65°C ambient.

Does MC7448VU1250ND support Dynamic Frequency Switching (DFS)?

Yes, MC7448VU1250ND supports Dynamic Frequency Switching with two DFS modes: divide-by-2 (250–625 MHz core range) and divide-by-4 (250–625 MHz). This feature is documented in Section 5.2.1 and Table 8 of the MPC7448ECS01AD Rev. 6 specification. DFS allows runtime core frequency reduction without reset, enabling rapid power-state transitions in response to workload changes. The MC7448VU1250ND requires proper PLL_CFG[0:5] configuration and SYSCLK alignment to avoid violating VCO or bus frequency limits during DFS transitions.

What is the core supply voltage requirement for MC7448VU1250ND?

The MC7448VU1250ND requires a nominal core supply voltage of 1.1 V ± 50 mV, as specified in Table 4 and Table A of the MPC7448ECS01AD Rev. 6 document. This tolerance band (±4.5%) defines the regulator accuracy needed to sustain stable 1250 MHz operation. Operating outside this range may cause timing violations or unexpected resets. The MC7448VU1250ND also supports derated operation at 1.0 V ± 50 mV, but only at reduced maximum core frequency (1000 MHz), as detailed in Table 11.

Is MC7448VU1250ND pin-compatible with other MPC7448 variants?

MC7448VU1250ND shares the same RoHS-compliant BGA package footprint and pinout with all other MC7448VUxxxNx variants (e.g., MC7448VU1000ND, MC7448VU1267ND), as confirmed by consistent "VU" package coding in Table 17 and identical mechanical specifications across the MPC7448 family documentation. However, voltage and thermal requirements differ between speed grades - substituting MC7448VU1250ND for a 1000 MHz variant requires verifying power delivery stability at 1.1 V and validating thermal solution for +2.6 W additional full-power dissipation.

What low-power modes does MC7448VU1250ND support?

The MC7448VU1250ND supports four hardware-managed low-power states: Nap Mode (6.5 W typical at 105°C), Sleep Mode (6.3 W), Deep Sleep Mode with PLL disabled (6.0 W), and Doze Mode (intermediate, untested). These values are published in Table 7 of the MPC7448ECS01AD Rev. 6 addendum. Each mode progressively gates clock domains and power islands - Deep Sleep disables the PLL and most I/O, making it suitable for long-duration idle periods in battery-backed systems. The MC7448VU1250ND enters these states via dedicated SPR writes and responds to configurable wake events including external interrupts and timer expiry.