NXP Semiconductors MCF52258AG80

Overview

MCF52258AG80 from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V2 RISC microcontroller designed for embedded control and connectivity applications. It operates at up to 80 MHz, integrates 512 KB flash and 64 KB SRAM, and features FlexCAN 2.0B, USB OTG, Fast Ethernet controller (FEC), and an 8-channel 12-bit ADC with simultaneous sampling - deployed in industrial gateways and motor control systems.

For engineers reviewing the MCF52258AG80 datasheet, MCF52258AG80 pinout, MCF52258AG80 application, or MCF52258AG80 equivalent, key selection criteria include its 144-pin LQFP package, 80 MHz V2 ColdFire core with EMAC/CAU, FEC + USB OTG dual-interface capability, and support for deterministic real-time control via four 32-bit DMA timers and dual PWM resolution modes (8×8-bit or 4×16-bit).

Technical Context

The MCF52258AG80 implements the ColdFire ISA_A+ instruction set with a two-pipeline V2 core (IFP/OEP), hardware divider, and enhanced MAC unit delivering 76 MIPS at 80 MHz. Its on-chip memory subsystem includes tightly coupled 512 KB flash (interleaved, 2-1-1-1 access) and 64 KB dual-ported SRAM supporting concurrent CPU/DMA/USB access.

Peripheral integration centers on deterministic I/O control: FlexCAN 2.0B with 16 configurable message buffers, FEC with descriptor-ring DMA, Mini-FlexBus (144-pin only), and dual S/H ADC enabling synchronized sampling of two channels - all managed by a 57-source interrupt controller with programmable priority and vectoring.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm), thermally enhanced with exposed pad. Pinout conforms to MCF52259 family layout; pin functions are validated per Freescale Document Number MCF52259 Rev. 5.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Kinetis K64F120M, MCF52258AG80 delivers native Ethernet and CAN without external components, reducing BOM count and PCB area; versus MCF52259AG80, it omits the RNG while retaining full CAU acceleration - making it optimal for deterministic control where entropy is not required.

Availability

MCF52258AG80 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, medical infusion pumps, and energy meter data concentrators requiring stable component supply across extended product lifecycles.

Supply support for MCF52258AG80 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 applications, with roots in Freescale's embedded processor heritage.

The MCF52258AG80 belongs to the ColdFire V2 microcontroller family, engineered for deterministic real-time control in harsh environments - emphasizing integrated connectivity (FEC, FlexCAN, USB OTG), cryptographic acceleration, and low-power operation.

FAQ

What is the maximum operating frequency of the MCF52258AG80?

The MCF52258AG80 operates at a maximum core frequency of 80 MHz, delivering 76 MIPS (Dhrystone 2.1) when executing from internal flash memory. This frequency is achieved using the integrated PLL with external crystal or oscillator input, and the peripheral bus runs at up to 40 MHz. The MCF52258AG80 datasheet confirms this rating under commercial temperature range (0°C to 70°C) with proper decoupling and thermal management.

Does the MCF52258AG80 include an integrated Ethernet MAC?

Yes, the MCF52258AG80 includes a fully integrated Fast Ethernet Controller (FEC) supporting 10/100 Mbps operation in half- or full-duplex mode. It implements the IEEE 802.3 MAC layer with on-chip transmit/receive FIFOs and descriptor-ring DMA - but requires an external PHY for physical layer interfacing via RMII or MII. The MCF52258AG80 does not integrate a PHY.

Is the MCF52258AG80 pin-compatible with other devices in the MCF5225x family?

The MCF52258AG80 in 144-pin LQFP is pin-compatible with MCF52259AG80 and MCF52256AG80 in the same package variant, sharing identical pin assignments for power, clocks, peripherals, and GPIO. However, feature differences (e.g., Mini-FlexBus presence, RNG, CAU) mean functional compatibility must be verified per application - the MCF52258AG80 lacks the RNG found in MCF52259AG80 but retains full CAU support.

What ADC capabilities does the MCF52258AG80 provide?

The MCF52258AG80 integrates an 8-channel, 12-bit fast ADC with two independent sample-and-hold (S/H) circuits, enabling true simultaneous sampling of two analog inputs - critical for motor phase current measurement. Minimum conversion time is 1.125 µs, and it supports single-scan, continuous, or trigger-based operation with configurable interrupts on completion or out-of-range conditions. The MCF52258AG80 ADC is validated in Table 2.15 of its official datasheet.

Does the MCF52258AG80 support USB On-The-Go functionality?

Yes, the MCF52258AG80 includes a USB On-The-Go (OTG) controller compliant with USB 1.1 and 2.0 specifications. It operates in both full-speed host and device modes, supports 16 bidirectional endpoints, and integrates a USB transceiver - eliminating the need for an external PHY. OTG protocol logic enables peer-to-peer communication, and the MCF52258AG80 USB interface is electrically characterized in Section 2.9 of the Freescale MCF52259 datasheet (Rev. 5).