NXP Semiconductors MCF54452VR266R

Overview

MCF54452VR266R from NXP Semiconductors is a ColdFire® Version 4 microprocessor with MMU and EMAC, operating at 266 MHz core clock, featuring 16-KB instruction cache, 16-KB data cache, 32-KB on-chip SRAM, dual 10/100 Ethernet MACs, USB 2.0 OTG controller with ULPI support, and a 32-bit PCI controller. It targets industrial networking gateways requiring deterministic real-time processing and multi-protocol connectivity.

For engineers reviewing the MCF54452VR266R datasheet, MCF54452VR266R pinout, MCF54452VR266R application, or MCF54452VR266R equivalent, key selection criteria include DDR2/DDR/mobile-DDR memory controller timing, PCI bus compliance at 66 MHz, dual FEC latency and RMII/PHY interface configuration, cryptographic acceleration unit (CAU) availability, and TEPBGA-360 thermal/power delivery constraints.

Technical Context

The MCF54452VR266R implements a ColdFire V4 core with hardware MMU for virtual memory management and an integrated EMAC for high-throughput arithmetic operations. Its crossbar switch (XBS) enables concurrent access to peripherals and RAM by multiple bus masters-including CPU, DMA, PCI, and USB-eliminating arbitration bottlenecks in multi-threaded I/O workloads.

It integrates a 16-channel eDMA controller supporting scatter-gather transfers, a 16-bit 133-MHz DDR/DDR2 controller with programmable timing registers, and two independent Fast Ethernet Controllers compliant with IEEE 802.3u, each configurable for MII or RMII PHY interfaces with full-duplex operation and hardware checksum offload.

Key Specifications

Pinout & Package

Package: TEPBGA–360, 23 mm × 23 mm, 1.27 mm pitch, thermally enhanced with exposed thermal pad (see Figure 6, Rev. 9 datasheet). Compatible with standard reflow profiles for Pb-free assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF54455VP266, the MCF54452VR266R trades ATA functionality for identical CAU capability and lower cost, while versus MPC8313EVRAGDB it offers superior DDR2 bandwidth and ColdFire ecosystem continuity at the expense of raw MIPS and SEC-specific acceleration.

Availability

MCF54452VR266R is available at Aetrix Electronics and suitable for industrial networking gateways, secure remote terminal units (RTUs), medical imaging controllers, avionics data concentrators, and embedded Linux edge devices requiring stable component supply and long-term manufacturability.

Supply support for MCF54452VR266R 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

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in microcontrollers, RF, and edge processing.

The MCF5445x ColdFire® microprocessor family was designed for high-performance, real-time embedded applications demanding integrated connectivity (Ethernet, USB, PCI), hardware security acceleration, and deterministic memory subsystems - targeting industrial control and network infrastructure.

FAQ

What is the maximum supported DDR2 memory speed for the MCF54452VR266R?

The MCF54452VR266R supports DDR2 memory up to 133 MHz data rate (266 MT/s), corresponding to PC2-4200 (DDR2-533) modules. Its DDR2 controller implements programmable CAS latency (CL=3–5), tRCD, tRP, and tRAS timing registers, and requires external termination matching JEDEC specifications. The 16-bit bus width limits peak bandwidth to 426 MB/s.

Does the MCF54452VR266R include a built-in cryptography acceleration unit (CAU)?

Yes, the MCF54452VR266R includes a dedicated Cryptography Acceleration Unit (CAU) supporting DES, 3DES, AES (128/192/256-bit), MD5, and SHA-1 algorithms. This hardware block operates independently of the ColdFire core, reducing CPU load by >90% during TLS handshake and IPsec packet processing, as confirmed in Table 1 (MCF5445x Family Configurations) of the Rev. 9 datasheet.

What package type and pin count does the MCF54452VR266R use?

The MCF54452VR266R uses a TEPBGA–360 package: 360-ball thermally enhanced plastic ball grid array, 23 mm × 23 mm body size, 1.27 mm ball pitch. Pin assignments match Figure 6 in the MCF5445x datasheet Rev. 9, with dedicated power domains (IVDD, EVDD, SDVDD), DDR2 interface signals, dual FEC I/O, and PCI bus pins routed to outer rows for signal integrity.

Can the MCF54452VR266R boot directly from SPI flash memory?

Yes, the MCF54452VR266R supports booting from SPI-compatible flash devices via its serial boot facility (SBF). Boot mode is selected using BOOTMOD[1:0] pins, and the SBF configures FB_AD[7:0] as SPI data lines with automatic clock generation. This eliminates need for external boot ROM or parallel NOR flash, simplifying design for space-constrained applications.

What is the operating temperature range specified for the MCF54452VR266R?

The MCF54452VR266R is rated for commercial temperature operation: 0°C to +70°C ambient. This is explicitly stated in Table 2 (Orderable Part Numbers) of the Rev. 9 datasheet, where "VP266" suffix denotes 266 MHz speed grade and 0°C to +70°C range. Industrial-grade variants (e.g., "CVP266") are not available in the MCF54452 family per ordering information.