NXP Semiconductors MPC8248VRTMFA

Overview

MPC8248VRTMFA from Freescale Semiconductor is a PowerQUICC II integrated communications processor featuring a 32-bit Power Architecture® G2_LE core (266–400 MHz), dual 16 KB instruction/data caches, integrated security engine (SEC) supporting AES/DES/SHA-1, PCI bridge (32-bit, 66 MHz), and dual Fast Communication Controllers (FCCs) for 10/100 Ethernet. It targets secure network edge routers and industrial gateways requiring deterministic real-time processing and hardware-accelerated cryptography.

For engineers reviewing the MPC8248VRTMFA datasheet, MPC8248VRTMFA pinout, MPC8248VRTMFA application, or MPC8248VRTMFA equivalent, key selection criteria include SEC algorithm support, FCC-based Ethernet throughput, PCI host/peripheral mode flexibility, VR-package thermal performance (RθJA = 27°C/W), and dual-clock domain operation (core + CPM PLLs).

Technical Context

The MPC8248VRTMFA integrates a G2_LE core with MMU and separate 16 KB I/D caches, a modified Communications Processor Module (CPM) with 16 KB dual-port RAM and 4 KB instruction RAM, and a dedicated Security Engine (SEC) supporting DES, 3DES, AES, SHA-1, MD-5, RC-4, PKEU, and RNG in hardware. Its 60x bus provides 64-bit data/32-bit address connectivity at up to 133 MHz.

It implements two independent PLLs-one for the G2_LE core (multipliers 2:1 to 8:1) and one for the CPM (multipliers 2:1 to 8:1)-enabling asynchronous clocking for power/performance optimization. The 60x-to-PCI bridge supports PCI Specification 2.2 compliance, hot-swap capability per PICMG 2.1, and four DMA channels for bidirectional 60x↔PCI streaming transfers.

Key Specifications

Pinout & Package

Package: 516-pin Plastic Ball Grid Array (PBGA), VR code, lead-free, 27 mm × 27 mm footprint, 1.27 mm ball pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated communications processor applications.

Compared with MPC8272VRTMFA, the MPC8248VRTMFA adds hardware security acceleration but omits UTOPIA II; versus MPC8360EVRAGDB, it offers lower cost and proven reliability in legacy deployments but lacks DDR2 and higher-frequency e300 core.

Availability

MPC8248VRTMFA is available at Aetrix Electronics and suitable for secure industrial gateways, telecom edge routers, network firewall appliances, and medical imaging data aggregators requiring stable component supply across extended product lifecycles.

Supply support for MPC8248VRTMFA 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 processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MPC8248VRTMFA belongs to the PowerQUICC II family-designed specifically for communications infrastructure requiring integrated protocol processing, deterministic real-time response, and hardware-accelerated security in a single SoC.

FAQ

What is the maximum operating frequency of the G2_LE core in the MPC8248VRTMFA?

The MPC8248VRTMFA's G2_LE core operates at a maximum frequency of 400 MHz, achievable using the internal core/bus clock multiplier set to 5:1 with a 80 MHz CLKIN, or 8:1 with a 50 MHz CLKIN. This frequency is validated under recommended operating conditions (VDD = 1.425–1.575 V, TA = 0–70°C, Tj ≤ 105°C) per the MPC8272EC Rev. 3 specification.

Does the MPC8248VRTMFA support PCI Express or only legacy PCI?

The MPC8248VRTMFA supports only PCI Specification 2.2 (32-bit, 33/66 MHz, 3.3 V), not PCI Express. Its 60x-to-PCI bridge implements host and peripheral modes, hot-swap capability per PICMG 2.1, and four DMA channels-but lacks PCIe PHY, transaction layer, or link training logic. For PCIe, consider NXP's QorIQ T-series successors.

How does the Security Engine (SEC) in the MPC8248VRTMFA accelerate cryptographic operations?

The MPC8248VRTMFA's SEC performs symmetric (AES, DES, 3DES, RC-4), asymmetric (PKEU), hash (SHA-1, MD-5), and random number (RNG) operations in dedicated hardware. It interfaces directly with on-chip memory via DMA, enabling AES-128 encryption of 1500-byte packets in <1.2 µs-offloading the G2_LE core and sustaining >100 Mbps throughput without CPU intervention.

What thermal management is required for the MPC8248VRTMFA in a 70°C ambient environment?

In a 70°C ambient environment, the MPC8248VRTMFA requires thermal design ensuring junction temperature stays ≤105°C. With RθJA = 27°C/W (natural convection, single-layer board), maximum allowable power dissipation is 1.3 W. This necessitates either forced air cooling (>1 m/s airflow) or a low-profile heatsink, especially when operating at 400 MHz core + active SEC + dual FCCs-where total power can reach 1.8 W per Table 8.

Can the MPC8248VRTMFA's CPM handle both HDLC and UART protocols simultaneously?

Yes-the MPC8248VRTMFA's CPM supports concurrent HDLC and UART operation: SCC1 and SCC2 can be independently configured for HDLC framing (e.g., for T1/E1 backhaul), while SCC3 operates in UART mode for console debugging or modem control. Each SCC has dedicated baud rate generators and DMA channels, enabling fully autonomous multi-protocol handling without G2_LE core involvement.