NXP Semiconductors MCF5475ZP266

Overview

MCF5475ZP266 from Freescale Semiconductor 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-Kbyte instruction and data caches, MMU, FPU compliant with IEEE-754 double-precision, and supports industrial networking and embedded control applications.

For engineers reviewing the MCF5475ZP266 datasheet, MCF5475ZP266 pinout, MCF5475ZP266 application, or MCF5475ZP266 equivalent, key selection considerations include its TEPBGA–388 package, 1.5V core / 2.5V DDR / 3.3V I/O voltage domains, 266 MHz peak performance, integrated FlexBus for glueless peripheral interfacing, and support for real-time deterministic communication stacks in telecom infrastructure and industrial gateways.

Technical Context

The MCF5475ZP266 implements a limited superscalar ColdFire V4e core with Harvard architecture, separate 32-Kbyte instruction and data caches, and a Memory Management Unit enabling full Linux OS support. Its internal XLB bus arbiter manages concurrent access from multiple masters including CPU, DMA, FECs, and USB.

It integrates a 32-bit DDR SDRAM controller supporting 66–133 MHz operation and up to 1 GB external memory across four chip selects, alongside a PCI 2.2 controller operating at 33–66 MHz with support for five external PCI masters and configurable bus-to-XLB divider ratios (1:1, 1:2, 1:4).

Key Specifications

Pinout & Package

Package: TEPBGA–388 (27 mm × 27 mm), ball pitch 1.0 mm, RoHS-compliant. Pinout conforms to Freescale Document Number MCF5475EC Rev. 4, with dedicated banks for DDR SDRAM (SDDATA[31:0], SDADDR[12:0], SDCLK[1:0], SDDQS[3:0]), PCI (PCIAD[31:0], PCICXBE[3:0], PCIFRM), FlexBus (AD[31:0], FBCS[5:0], R/W), and high-speed serial interfaces (USBD+, USBD−, PSCnTXD/RTS, DSPI signals).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8313EVRAGDB and i.MX27ADS, the MCF5475ZP266 uniquely combines ColdFire V4e deterministic execution, integrated DDR/PCI/FlexBus, dual FECs, and hardware crypto - making it optimal for industrial protocol gateways requiring Linux, real-time I/O, and secure communications without external bridge chips.

Availability

MCF5475ZP266 is available at Aetrix Electronics and suitable for industrial networking gateways, telecom edge nodes, medical imaging subsystems, and automotive diagnostic master units requiring stable component supply and long-term lifecycle support.

Supply support for MCF5475ZP266 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

Freescale Semiconductor (now part of NXP Semiconductors) is a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MCF5475ZP266 belongs to the ColdFire MCF547x family, designed specifically for high-performance, feature-rich embedded control applications requiring Linux-capable processing, deterministic real-time I/O, and integrated high-speed interconnects - targeting industrial automation, telecom infrastructure, and secure edge devices.

FAQ

What is the maximum operating junction temperature for the MCF5475ZP266?

The MCF5475ZP266 has a maximum operating junction temperature (T_j) of 105°C, as specified in Table 2 of the MCF5475EC Rev. 4 datasheet. This limit must be maintained under all operating conditions using appropriate thermal design - including PCB layout with thermal vias, copper pour, and heatsinking - especially given its estimated power consumption of less than 1.5W in the 388-pin PBGA package.

Does the MCF5475ZP266 support both DDR and SDR SDRAM simultaneously?

No, the MCF5475ZP266 DDR SDRAM controller supports either DDR or SDR SDRAM operation, but not both simultaneously. The mode is configured at boot time via configuration registers and hardware strapping options. Section 9 of the MCF5475EC Rev. 4 datasheet confirms the controller is mutually exclusive in DDR vs. SDR mode, with distinct AC timing specifications provided for each in Tables 11 and 13.

What voltage sequencing is required for reliable power-up of the MCF5475ZP266?

The MCF5475ZP266 requires strict voltage sequencing: IVDD/PLL VDD and EVDD/SD VDD must track up to 0.9V, then separate to reach final voltages (1.5V, 2.5V, 3.3V). IVDD must never exceed EVDD or SD VDD by more than 0.4V during ramp-up. Rise times must be slower than 1 µs to prevent ESD diode conduction. This is detailed in Section 4.2.1 of the MCF5475EC Rev. 4 datasheet.

Can the MCF5475ZP266 operate as a USB 2.0 host?

No, the MCF5475ZP266 implements only a USB 2.0 device controller - not a host controller. Its USB interface supports control, interrupt, bulk, and isochronous transfers in device mode only, with one control and six programmable endpoints. There is no OHCI/EHCI hardware, UTMI+ interface, or root hub functionality. This is explicitly stated in the "Communications I/O subsystem" section of the MCF5475EC Rev. 4 datasheet.

Is the cryptography accelerator module optional or integrated in the MCF5475ZP266?

The cryptography accelerator is an integrated, silicon-hardened module within the MCF5475ZP266 die - not an external option or software library. It provides dedicated execution units for DES/3DES, AES, RC4, MD5/SHA-1/SHA-256/HMAC, and RNG, accessible via memory-mapped registers. Its presence is confirmed in the "Features list" and block diagram (Figure 1) of the MCF5475EC Rev. 4 datasheet.