NXP Semiconductors MCF5474ZP266

Overview

MCF5474ZP266 from NXP Semiconductors (formerly Freescale) is a ColdFire V4e-based 32-bit microprocessor with integrated DDR SDRAM controller, PCI 2.2 interface, dual 10/100 Mbps Ethernet controllers, USB 2.0 device controller, and optional cryptography accelerator. It operates at up to 266 MHz core frequency (410 MIPS), features 32 KB instruction and 32 KB data caches, MMU, FPU compliant with IEEE-754 double-precision, and supports industrial networking and embedded control applications.

For engineers reviewing the MCF5474ZP266 datasheet, MCF5474ZP266 pinout, MCF5474ZP266 application, or MCF5474ZP266 equivalent, key selection criteria include DDR/SDR memory support, PCI bus timing compliance, FlexBus glueless interfacing capability, cold temperature operation (–40°C to +85°C industrial grade), and cryptographic acceleration for secure boot or TLS offload in edge gateways.

Technical Context

The MCF5474ZP266 implements a Harvard-architecture ColdFire V4e core with separate 32-KB instruction and data caches, MMU, and IEEE-754-compliant FPU - enabling real-time deterministic execution and floating-point-intensive control algorithms. Its internal XLB bus arbiter manages concurrent access from multiple masters including DMA, FECs, and USB.

It integrates a 32-bit DDR/SDR SDRAM controller (66–133 MHz), PCI 2.2 target/initiator interface (33–66 MHz), and FlexBus supporting up to six chip selects at 33–66 MHz - all synchronized to a single CLKIN reference, with programmable PLL dividers (1:2 or 1:4) enabling precise clock domain partitioning for system-level timing integrity.

Key Specifications

Pinout & Package

Package: TEPBGA–388, 27 mm × 27 mm, 1.27 mm pitch. Pinout validated per Freescale MCF5475EC Rev. 4 datasheet Figure 31 (388-pin BGA case outline) and Table 10 (FlexBus AC timing), Table 13 (DDR timing), and Section 8 (FlexBus signal mapping).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF5475ZP266, the MCF5474ZP266 offers identical real-time performance and peripheral set at lower debug complexity and cost; versus i.MX283, it delivers superior deterministic I/O timing and legacy bus support but requires external graphics and NAND management.

Availability

MCF5474ZP266 is available at Aetrix Electronics and suitable for industrial gateways, medical imaging controllers, avionics data concentrators, and secure edge routers requiring stable component supply across extended product lifecycles.

Supply support for MCF5474ZP266 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 heritage in microcontroller and microprocessor innovation.

The MCF5474ZP266 belongs to the ColdFire V4e microprocessor family designed specifically for high-performance, real-time embedded applications demanding deterministic timing, hardware security, and legacy bus interoperability in harsh environments.

FAQ

What is the maximum DDR SDRAM clock frequency supported by the MCF5474ZP266?

The MCF5474ZP266 supports DDR SDRAM operation up to 133 MHz, as specified in Section 9.2 of the MCF5475EC Rev. 4 datasheet. This enables peak memory bandwidth of 1.06 GB/s using a 32-bit bus. The controller supports both DDR and SDR modes but not simultaneously, and requires proper SSTL_25 I/O termination and layout adherence to DDR timing windows (tAC, tDQSS, tDQSCK) per Table 13.

Does the MCF5474ZP266 include an integrated USB PHY?

Yes, the MCF5474ZP266 integrates a full-speed and high-speed USB 2.0 PHY, as confirmed in the "Communications I/O subsystem" section of the MCF5475EC Rev. 4 datasheet. It supports USB device mode only (not host), with dedicated USBD+/USBD− pins, USBVBUS detection, and on-die termination - eliminating need for external transceivers in most designs.

What are the power supply sequencing requirements for reliable startup of the MCF5474ZP266?

The MCF5474ZP266 requires strict voltage sequencing per Freescale AN2972: IVDD/PLL VDD and EVDD/SD VDD must track up to 0.9 V, then separate, with IVDD never exceeding EVDD or SD VDD by more than 0.4 V. Rise times must be slower than 1 µs to prevent ESD diode conduction. Failure to follow this risks latch-up or undefined reset behavior.

Can the MCF5474ZP266 execute Linux operating systems?

Yes, the MCF5474ZP266 supports Linux distributions such as uClinux and TimeSys Linux due to its MMU, 266 MHz V4e core, and 32 KB instruction/data caches. Kernel porting is validated for ColdFire V4e, and the integrated DDR controller and Ethernet interfaces provide essential subsystem support for full-featured embedded Linux deployments.

Is the cryptography accelerator module enabled by default on the MCF5474ZP266?

No, the cryptography accelerator module is optional and disabled by default on the MCF5474ZP266. It must be enabled via the SIU's CRYPTOEN bit (SIU_CRYPT register) and configured through dedicated control registers. Its presence is silicon-masked - all MCF5474ZP266 units include the hardware block, but firmware must explicitly initialize and manage it.