NXP Semiconductors MCF54451VM240J

Overview

MCF54451VM240J from NXP Semiconductors is a ColdFire® Version 4 microprocessor with MMU and EMAC, operating at up to 240 MHz core clock, delivering up to 370 Dhrystone 2.1 MIPS, featuring 16-KB instruction cache, 16-KB data cache, and 32-KB on-chip SRAM. It targets industrial networking gateways requiring dual 10/100 Ethernet MACs, DDR SDRAM interface, and cryptographic acceleration.

For engineers reviewing the MCF54451VM240J datasheet, MCF54451VM240J pinout, MCF54451VM240J application, or MCF54451VM240J equivalent, key selection criteria include its 256-pin MAPBGA package, 240 MHz performance grade, 0°C to +70°C temperature range, and support for serial boot from SPI flash and DDR2 memory.

Technical Context

The MCF54451VM240J implements a ColdFire V4 core with integrated MMU for protected multitasking OS environments and an EMAC unit for efficient signal processing. Its crossbar switch (XBS) enables concurrent access to peripherals and RAM by multiple bus masters including CPU, DMA, and PCI controller.

It integrates a 16-channel DMA controller, dual Fast Ethernet MACs (FEC0/FEC1), USB 2.0 OTG with ULPI support, and a dedicated Cryptography Acceleration Unit (CAU) supporting DES, 3DES, AES, MD5, and SHA-1 - all operating under a single synchronized clock domain derived from its PLL.

Key Specifications

Pinout & Package

Package: 256-ball MAPBGA (17 mm × 17 mm, 1.0 mm ball pitch), RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF54451VM240J, MCF54450VM240 omits security and storage features for cost-sensitive control nodes, while MCF54452CVP200 trades clock speed for industrial temperature resilience and PCI expandability - making MCF54451VM240J optimal for balanced performance, security, and commercial-temp networking edge devices.

Availability

MCF54451VM240J is available at Aetrix Electronics and suitable for industrial gateways, secure RTUs, and medical edge nodes requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MCF54451VM240J 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.

The MCF5445x ColdFire® family delivers high-performance, low-power microprocessors targeting real-time industrial control, networking, and multimedia edge applications with integrated security and memory subsystems.

FAQ

What is the maximum operating frequency of the MCF54451VM240J?

The MCF54451VM240J operates at a maximum core clock frequency of 240 MHz, delivering up to 370 Dhrystone 2.1 MIPS. This speed grade is validated across the full 0°C to +70°C commercial temperature range and requires proper PLL configuration and stable 1.5 V core supply (IVDD). The MCF54451VM240J achieves this performance while maintaining compatibility with the MCF5445x family's pinout and software ecosystem.

Does the MCF54451VM240J include hardware cryptographic acceleration?

Yes, the MCF54451VM240J includes a dedicated Cryptography Acceleration Unit (CAU) that offloads DES, 3DES, AES, MD5, and SHA-1 operations from the main ColdFire core. This hardware engine significantly reduces CPU load during TLS handshake, IPsec packet processing, and secure firmware validation - a key differentiator versus the MCF54450VM240, which lacks CAU. The CAU is accessible via memory-mapped registers and supported in NXP's MQX and Linux BSPs.

Which package type and ball count does the MCF54451VM240J use?

The MCF54451VM240J uses a 256-ball MAPBGA package measuring 17 mm × 17 mm with 1.0 mm ball pitch. This matches the pinout of the MCF54450 series and is distinct from the 360-ball TEPBGA used by higher-speed MCF54452–MCF54455 variants. The 256 MAPBGA supports standard PCB assembly processes and provides sufficient I/O for dual Ethernet, USB OTG, DDR2, and FlexBus expansion in space-constrained industrial designs.

Can the MCF54451VM240J boot directly from external flash memory?

Yes, the MCF54451VM240J supports serial boot from SPI-compatible flash, EEPROM, and FRAM devices without requiring external boot ROM or configuration PROM. Boot mode is selected via BOOTMOD[1:0] pins, and the internal ROM bootloader initializes the PLL, configures clocks, and loads application code into on-chip SRAM or external DDR. This capability simplifies system design and enables field-upgradable firmware for MCF54451VM240J-based products.

How many Ethernet MACs does the MCF54451VM240J integrate, and what standards do they support?

The MCF54451VM240J integrates two independent 10/100 Fast Ethernet MACs (FEC0 and FEC1), each supporting MII and RMII physical layer interfaces. Both MACs implement IEEE 802.3 CSMA/CD, full/half-duplex operation, VLAN tagging, and hardware checksum offload. They are fully programmable via memory-mapped registers and supported by NXP's Linux kernel drivers and MQX TCP/IP stack - enabling dual-NIC routing, bridging, or redundancy in MCF54451VM240J-based networking equipment.