NXP Semiconductors MCF5482CVR166

Overview

MCF5482CVR166 from Freescale Semiconductor is a ColdFire V4e-core 32-bit microprocessor with integrated DDR SDRAM controller, dual Fast Ethernet MACs, USB 2.0 device controller, two FlexCAN 2.0B modules, and cryptographic acceleration. It operates at up to 166 MHz core frequency (308 MIPS @ 200 MHz), features 32 KB instruction and 32 KB data caches, MMU, FPU, and 32 KB on-chip SRAM. It targets high-performance industrial networking and embedded control applications requiring real-time I/O, secure communications, and memory-rich execution.

For engineers reviewing the MCF5482CVR166 datasheet, MCF5482CVR166 pinout, MCF5482CVR166 application, or MCF5482CVR166 equivalent, this page delivers verified technical context-including ColdFire V4e architecture constraints, DDR/PCI/FlexBus timing boundaries, cryptographic module coverage, and TEPBGA-388 thermal/power behavior-enabling accurate system-level validation and BOM selection.

Technical Context

The MCF5482CVR166 implements a limited-superscalar ColdFire V4e core with Harvard architecture, separate 32-entry TLBs, and IEEE-754-compliant double-precision FPU. Its internal XLB bus arbiter supports split transactions between DDR SDRAM, PCI, FlexBus, and peripheral subsystems.

It integrates a 32-bit DDR SDRAM controller (66–133 MHz), PCI 2.2 interface (33–66 MHz), six-chip-select FlexBus (33–66 MHz), dual FECs with 2 KB FIFOs each, four PSCs, I²C, DSPI, and two FlexCAN controllers with 16 message buffers each. The optional cryptography accelerator supports DES/3DES, AES, RC4, MD5/SHA-1/SHA-256, HMAC, and RNG.

Key Specifications

Pinout & Package

Package: TEPBGA–388, 27 mm × 27 mm, ball pitch 1.27 mm. Thermal resistance θ_JMA = 19°C/W (natural convection, 4-layer board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF5484CVR200, the MCF5482CVR166 trades peak frequency for reduced thermal envelope and lower system-level power supply complexity; versus MPC8313EVRAGDB, it provides native ColdFire toolchain support and integrated DDR control but lacks QUICC Engine coprocessor for channelized serial protocols.

Availability

MCF5482CVR166 is available at Aetrix Electronics and suitable for industrial networking gateways, secure edge appliances, medical imaging subsystems, and transportation telematics requiring stable component supply and long-term lifecycle assurance.

Supply support for MCF5482CVR166 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 processing, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MCF5482CVR166 belongs to the ColdFire MCF548x family, designed specifically for high-performance, feature-rich embedded control applications requiring integrated networking, security, and memory subsystems in a single-package solution.

FAQ

What is the maximum operating junction temperature for the MCF5482CVR166?

The MCF5482CVR166 has a maximum operating junction temperature (T_j) of 105°C, as specified in Table 2 of the MCF5485EC datasheet. This limit applies under natural convection cooling on a four-layer PCB (2s2p). Exceeding this temperature risks thermal shutdown or permanent damage. System-level thermal design must ensure junction temperature remains within specification across ambient conditions from –40°C to +85°C.

Does the MCF5482CVR166 support both DDR and SDR SDRAM simultaneously?

No, the MCF5482CVR166 DDR SDRAM controller supports either DDR or SDR SDRAM-but not both concurrently. The mode is selected at boot via configuration registers; the controller cannot interleave or mix DDR and SDR devices on the same bus. External memory layout must use one type exclusively, and timing parameters (e.g., t_RCD, t_RP) must match the selected SDRAM standard.

Is the cryptography accelerator module enabled by default on the MCF5482CVR166?

No, the cryptography accelerator module in the MCF5482CVR166 is optional and disabled by default at reset. It must be explicitly enabled via the SIU's CRYPTOEN bit (SIU_CRYPT register) and configured with appropriate key and data pointers. Its presence is silicon-optional-some MCF5482CVR166 units may lack the hardware block entirely, confirmed only by reading the CRYPTID register.

What are the voltage sequencing requirements for powering up the MCF5482CVR166?

The MCF5482CVR166 requires strict voltage sequencing: IVDD/PLL VDD and EVDD/SD VDD must track up to 0.9 V, then separate-IVDD/PLL VDD rising to 1.5 V while EVDD/SD VDD rise to 3.3 V/2.5 V. IVDD must never exceed EVDD or SD VDD by more than 0.4 V during ramp-up. All supplies must use ≤1 µs rise time to avoid ESD diode conduction. Failure to follow this sequence risks latch-up or I/O pad damage.

Can the MCF5482CVR166 operate with a 25 MHz CLKIN input?

Yes, the MCF5482CVR166 supports 25 MHz CLKIN-but only with specific PLL multiplier configurations. Per Table 8 (MCF548x Divide Ratio Encodings), a 25 MHz CLKIN yields 100 MHz XLB/internal bus and 200 MHz core frequency only when AD[12:8] = 01111 (1:4 ratio). For 166 MHz operation (AD[12:8] = 00011), CLKIN must be 41.67–50 MHz. Using 25 MHz CLKIN with unsupported encodings results in undefined or non-functional clock domains.