NXP Semiconductors MCF5483CVR166

Overview

MCF5483CVR166 from NXP Semiconductors (formerly Freescale) is a ColdFire V4e-based 32-bit microprocessor with integrated MMU, FPU, DDR SDRAM controller, dual Fast Ethernet MACs, USB 2.0 device controller, two FlexCAN 2.0B interfaces, and cryptographic acceleration. It operates at up to 166 MHz core frequency (256 MIPS @ 166 MHz, Dhrystone 2.1), supports 3.3V I/O, 2.5V DDR memory bus, and 1.5V core logic, and targets industrial networking gateways requiring deterministic real-time processing and secure communications.

For engineers reviewing the MCF5483CVR166 datasheet, MCF5483CVR166 pinout, MCF5483CVR166 application, or MCF5483CVR166 equivalent, this page delivers verified technical context, validated package mapping, confirmed pin-level circuit roles, and rigorously cross-checked alternative options - all derived from the official MCF5485EC Rev. 4 datasheet and Freescale's documented MCF548x family specifications.

Technical Context

The MCF5483CVR166 implements the ColdFire V4e core with Harvard architecture, 32-Kbyte instruction and data caches, and IEEE-754-compliant double-precision FPU. Its system integration unit includes an interrupt controller, watchdog timer, four 32-bit general-purpose timers with PWM capability, and GPIO multiplexing.

It integrates a 32-bit DDR/SDR SDRAM controller (66–133 MHz), PCI 2.2 interface (33–66 MHz), FlexBus subsystem (33–66 MHz, six chip selects), and a communications I/O subsystem featuring dual FECs, USB 2.0 device PHY, four PSCs, I²C, two FlexCAN controllers, and DSPI - all coordinated via an internal XLB arbiter.

Key Specifications

Pinout & Package

Package: 388-pin TEPBGA (27 mm × 27 mm), ball pitch 1.0 mm, compliant with JEDEC MO-205AC. Thermal resistance θJMA = 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 MCF5483CVR166, the MCF5485CVR200 offers higher clock headroom and DDR bandwidth in identical packaging, while the i.MX283 trades integrated peripherals and real-time capability for lower cost and ARM ecosystem alignment - making it suitable only for less demanding, non-safety-critical edge nodes.

Availability

MCF5483CVR166 is available at Aetrix Electronics and suitable for industrial gateways, secure RTUs, PLC CPU modules, and medical edge nodes requiring stable component supply, long lifecycle support, and traceable sourcing.

Supply support for MCF5483CVR166 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 microcontrollers and processors from its acquisition of Freescale Semiconductor in 2015.

The MCF5483CVR166 belongs to the ColdFire V4e microprocessor family, designed specifically for deterministic real-time industrial networking applications requiring integrated Ethernet, CAN, security, and Linux-capable MMU - bridging the gap between microcontrollers and high-end application processors.

FAQ

What is the maximum DDR SDRAM clock frequency supported by the MCF5483CVR166?

The MCF5483CVR166 supports DDR SDRAM operation up to 133 MHz, as specified in Section 9.2 of the MCF5485EC Rev. 4 datasheet. This corresponds to 266 MT/s data rate. The controller is configured via the SDRAM configuration registers and requires proper setup of timing parameters (tRCD, tRP, tRAS) per attached memory device. MCF5483CVR166 achieves this frequency using the 1:2 PLL ratio from a 66.67 MHz CLKIN source.

Does the MCF5483CVR166 include a hardware memory management unit (MMU)?

Yes, the MCF5483CVR166 integrates a full-featured MMU compliant with the ColdFire V4e architecture specification. It supports demand-paged virtual memory, 32-entry fully associative translation lookahead buffers for both instruction and data, and is required to run full-featured operating systems such as Linux, VxWorks, or QNX. This MMU is explicitly listed in the "Features list" section of the MCF5485EC Rev. 4 datasheet.

Can the MCF5483CVR166 operate with a 1.8 V I/O voltage?

No. The MCF5483CVR166 requires three distinct supply voltages: 1.5 V for core logic (IVDD), 2.5 V for DDR SDRAM I/O (SDVDD), and 3.3 V for all other I/O including PCI, FlexBus, USB, and CAN (EVDD). Section 3 of the MCF5485EC Rev. 4 datasheet specifies EVDD min/max as 3.0–3.6 V and SDVDD as 2.30–2.70 V. Operation at 1.8 V violates absolute maximum ratings and is not supported.

Is the USB 2.0 interface on the MCF5483CVR166 capable of host-mode operation?

No. The MCF5483CVR166 implements a USB 2.0 *device* controller only, as stated in the "Communications I/O subsystem" section of the datasheet. It supports control, interrupt, bulk, and isochronous transfers as a peripheral - not as a host. It lacks OHCI/EHCI host controllers, root hub logic, or VBUS sensing circuitry required for host functionality. External USB host capability requires a companion USB host controller IC.

What debug interfaces are available on the MCF5483CVR166?

The MCF5483CVR166 provides two standardized debug interfaces: a ColdFire Background Debug Mode (BDM) serial port and a full IEEE 1149.1 JTAG test access port. Both are documented in Sections 4.4 and 14 of the MCF5485EC Rev. 4 datasheet. The BDM port enables real-time debugging and flash programming via single-wire interface, while JTAG supports boundary scan testing and multi-core debug in complex systems. MCF5483CVR166 does not include SWD or ARM-specific debug protocols.