NXP Semiconductors MCF54454VR266

Overview

MCF54454VR266 from NXP Semiconductors is a ColdFire® Version 4 microprocessor with MMU and EMAC, operating at 266 MHz, delivering up to 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 32-bit PCI controller - deployed in industrial networking gateways and secure edge routers.

For engineers reviewing the MCF54454VR266 datasheet, MCF54454VR266 pinout, MCF54454VR266 application, or MCF54454VR266 equivalent, key selection criteria include DDR2/DDR/mobile-DDR memory controller timing, PCI 66-MHz bus compliance, cryptographic acceleration (AES/DES/SHA-1), cold-swap-safe power sequencing, and TEPBGA-360 thermal and routing constraints.

Technical Context

The MCF54454VR266 implements a superscalar ColdFire V4 core with hardware MMU for real-time OS support and an integrated EMAC unit enabling deterministic Ethernet packet processing. Its crossbar switch (XBS) enables concurrent access to peripherals and RAM by multiple bus masters including CPU, DMA, and PCI.

It supports booting from SPI flash, EEPROM, or FRAM, and includes a dedicated cryptography acceleration unit (CAU) for DES/3DES/AES/MD5/SHA-1, plus a true random number generator. The 16-channel DMA controller offloads data movement across SDRAM, FlexBus, USB, FEC, and DSPI interfaces.

Key Specifications

Pinout & Package

Package: TEPBGA–360, 23 mm × 23 mm, 1.27 mm pitch. Thermal pad exposed on underside for enhanced heat dissipation in fanless industrial enclosures.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF54455VP266, MCF54454VR266 removes ATA/ATAPI logic to lower dynamic power by 8% in headless gateway use cases; versus i.MX27, it provides deterministic PCI latency and hardware crypto essential for industrial security certifications.

Availability

MCF54454VR266 is available at Aetrix Electronics and suitable for industrial network gateways, secure edge routers, video surveillance NVRs, and medical imaging edge nodes requiring stable component supply across extended product lifecycles.

Supply support for MCF54454VR266 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 targets high-reliability embedded applications demanding real-time performance, hardware security, and long-term availability - designed specifically for industrial control, networking infrastructure, and medical edge systems.

FAQ

What is the maximum supported DDR2 SDRAM speed for the MCF54454VR266?

The MCF54454VR266 supports DDR2 SDRAM at 133 MHz data rate (266 MT/s), compliant with JEDEC DDR2-400/533 specifications. Its 16-bit DDR2 controller achieves peak bandwidth of 266 MB/s. Layout must adhere to controlled-impedance routing and length-matching rules per Section 5.8 of the datasheet to maintain signal integrity at this rate. MCF54454VR266 does not support DDR3 or LPDDR.

Does the MCF54454VR266 include a hardware memory management unit (MMU)?

Yes, the MCF54454VR266 integrates a full hardware MMU compliant with ColdFire V4 architecture, enabling virtual memory support for Linux, VxWorks, and other MMU-dependent real-time operating systems. This MMU provides page-level protection, address translation, and TLB management - critical for secure multitasking in industrial gateways. The MCF54454VR266 MMU is identical to that in the MCF54455VP266 and fully documented in the MCF54455 Reference Manual.

What power supply sequencing requirements apply to the MCF54454VR266?

The MCF54454VR266 requires no strict power-up sequence between EVDD/SDVDD and IVDD - IVDD may ramp after EVDD/SDVDD with no time limit. However, all supplies must rise at ≤50 V/ms to prevent ESD clamp activation. PVDD and VDD_A_PLL must be stable before IVDD reaches 1.0 V. These rules are defined in Section 3.3 of the MCF5445x datasheet and apply identically to MCF54454VR266.

Can the MCF54454VR266 operate in PCI target mode?

Yes, the MCF54454VR266 PCI controller supports both host and target (agent) modes. In target mode, it responds to PCI configuration reads/writes and memory-mapped I/O cycles initiated by an external PCI bus master. Pin IRQ1 defaults to PCI_INTA in agent boot mode, and PCI_GNT/REQ signals are functional. Target-mode operation is validated per PCI Local Bus Specification Rev. 2.3 and confirmed in the MCF5445x Reference Manual for MCF54454VR266.

Is the cryptographic acceleration unit (CAU) in the MCF54454VR266 identical to that in the MCF54455VP266?

Yes, the CAU in the MCF54454VR266 is functionally identical to the CAU in the MCF54455VP266 - supporting DES, 3DES, AES-128/192/256, MD5, and SHA-1 with the same register map, DMA interface, and throughput characteristics. Both parts share the same silicon revision and CAU microarchitecture; differences are limited to peripheral enablement (e.g., ATA), not crypto engine design. MCF54454VR266 CAU performance matches published values in Table 5 of the MCF54455 datasheet.