NXP Semiconductors MCF54453VR266

Overview

MCF54453VR266 from NXP Semiconductors is a ColdFire® Version 4 microprocessor with MMU and EMAC, operating at 266 MHz, delivering 410 Dhrystone 2.1 MIPS. It integrates 16-KB instruction cache, 16-KB data cache, 32-KB SRAM, dual 10/100 Ethernet MACs, USB 2.0 OTG with ULPI, and a 16-channel DMA controller. It targets industrial networking gateways requiring deterministic real-time processing and secure communications.

For engineers reviewing the MCF54453VR266 datasheet, MCF54453VR266 pinout, MCF54453VR266 application, or MCF54453VR266 equivalent, key selection criteria include DDR2/DDR/mobile-DDR memory controller timing, PCI 66-MHz bus compliance, FEC RMII vs. MII interface configuration, CAU cryptographic acceleration support, and 360-pin TEPBGA thermal/power layout constraints.

Technical Context

The MCF54453VR266 implements a superscalar ColdFire V4 core with hardware MMU for full virtual memory management and an integrated EMAC unit enabling high-throughput DSP-like 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-intensive applications.

It supports booting from SPI flash, EEPROM, or FRAM, and includes dedicated hardware modules: a 16-bit 133-MHz DDR/DDR2 controller with configurable SDRAM timing, two independent FECs supporting both MII and RMII PHY interfaces, and a Cryptography Acceleration Unit (CAU) offloading DES, 3DES, AES, MD5, and SHA-1 operations from the main CPU.

Key Specifications

Pinout & Package

Package: 360-ball TEPBGA (23 mm × 23 mm), RoHS-compliant, with 1.0-mm ball pitch. Thermal pad on underside requires solder paste stencil design per NXP AN3709.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF54455VP266, the MCF54453VR266 omits ATA and offers identical performance and peripheral set for pure networking/embedded control use cases; versus i.MX27, it provides superior real-time determinism and mature VxWorks/Linux BSP support but no native video interface.

Availability

MCF54453VR266 is available at Aetrix Electronics and suitable for industrial networking gateways, secure remote terminal units (RTUs), medical edge nodes, automotive diagnostic tools, and energy metering systems requiring stable component supply over extended product lifecycles.

Supply support for MCF54453VR266 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in microcontrollers, RF, and edge processing.

The ColdFire® MCF5445x family was designed for high-performance, real-time embedded applications demanding integrated networking, security acceleration, and deterministic OS support - targeting industrial automation, telecom infrastructure, and medical devices.

FAQ

What is the maximum supported DDR2 data rate for the MCF54453VR266?

The MCF54453VR266 supports a 133-MHz clock on its 16-bit DDR2 interface, enabling a theoretical peak data rate of 266 MT/s (MegaTransfers per second). This matches JEDEC DDR2-400 (PC2-3200) specifications. Actual achievable bandwidth depends on PCB layout, termination, and memory chip selection - refer to Section 5.8 (SDRAM AC Timing Characteristics) in the MCF5445x datasheet Rev. 9 for setup/hold and timing margin requirements specific to MCF54453VR266.

Does the MCF54453VR266 include a hardware cryptography accelerator?

Yes, the MCF54453VR266 includes a dedicated Cryptography Acceleration Unit (CAU) that offloads DES, 3DES, AES, MD5, and SHA-1 operations from the main ColdFire V4 core. This hardware engine significantly reduces CPU load during TLS handshake, IPsec tunnel establishment, and firmware signature verification - critical for maintaining real-time responsiveness in secure communication applications using the MCF54453VR266.

What package type and ball count does the MCF54453VR266 use?

The MCF54453VR266 uses a 360-ball TEPBGA (Thermally Enhanced Plastic Ball Grid Array) package measuring 23 mm × 23 mm with 1.0-mm ball pitch. This package is shared across the MCF54452–MCF54455 variants and features an exposed thermal pad on the underside for enhanced heat dissipation - PCB layout must follow NXP's thermal guidelines in AN3709 to ensure reliable operation at 266 MHz.

Can the MCF54453VR266 boot directly from SPI flash memory?

Yes, the MCF54453VR266 supports serial boot from SPI-compatible flash devices, as confirmed in the MCF5445x Family Comparison table and Features list. Boot mode is configured via BOOTMOD[1:0] pins, and the internal boot ROM initializes the FlexBus or DSPI interface to fetch initial code. This eliminates the need for external boot PROM and simplifies firmware update workflows in field-deployed MCF54453VR266 systems.

How many Ethernet MACs does the MCF54453VR266 integrate, and what PHY interfaces do they support?

The MCF54453VR266 integrates two independent 10/100 Fast Ethernet MACs (FEC0 and FEC1), each configurable for either MII (Media Independent Interface) or RMII (Reduced MII) PHY connection. RMII mode reduces pin count to 7 signals per MAC, while MII uses 18; both modes are supported simultaneously on different MACs - enabling flexible PHY selection (e.g., RMII for cost-sensitive ports, MII for legacy compatibility) in MCF54453VR266-based designs.