NXP Semiconductors MCF52252AF80

Overview

MCF52252AF80 from Freescale is a 32-bit ColdFire V2 RISC microcontroller operating at up to 80 MHz, delivering 76 MIPS (Dhrystone 2.1) with integrated 256 KB flash, 32 KB SRAM, FlexCAN 2.0B, USB OTG, and three UARTs. It targets industrial control, motor drive, and embedded networking applications requiring deterministic real-time response and cryptographic acceleration.

For engineers reviewing the MCF52252AF80 datasheet, MCF52252AF80 pinout, MCF52252AF80 application, or MCF52252AF80 equivalent, key selection criteria include its 100-pin LQFP package, 80 MHz core clock, 256 KB flash/32 KB SRAM memory configuration, FlexCAN support, and USB OTG dual-mode capability in resource-constrained designs.

Technical Context

The MCF52252AF80 implements the ColdFire ISA_A+ instruction set with a two-pipeline V2 core (IFP/OEP), enhanced MAC unit for DSP operations, and tightly coupled Cryptographic Acceleration Unit (CAU) supporting AES, DES, 3DES, MD5, and SHA-1. Its interrupt controller handles 57 sources with programmable priority and vectoring.

It integrates a Fast Ethernet Controller (FEC) with 10/100 Mbps support, Mini-FlexBus interface (available only on 144-pin variants - not present in MCF52252AF80), and an eight-channel 12-bit ADC with simultaneous sampling-enabling precise motor current sensing and closed-loop control without external signal conditioning.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm), RoHS-compliant, surface-mount, with 0.5 mm pitch and exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF52252AF80, the MCF52254AF80 offers double memory and external bus capability at identical pinout and clock specs, while the K60DN512ZVMD10 trades ColdFire-specific peripherals (CAU, BDM) for ARM-standard features (FPU, CMSIS-RTOS), requiring firmware rearchitecture but enabling broader software reuse.

Availability

MCF52252AF80 is available at Aetrix Electronics and suitable for industrial motor control, automotive diagnostic tools, and networked building automation requiring stable component supply and long-term lifecycle assurance.

Supply support for MCF52252AF80 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, connectivity, and analog solutions for automotive, industrial, and consumer markets.

The MCF52252AF80 belongs to the ColdFire V2 microcontroller family, designed specifically for deterministic real-time control applications demanding high MIPS/mm², low-power operation, and integrated security acceleration in constrained industrial environments.

FAQ

What is the maximum operating frequency of the MCF52252AF80?

The MCF52252AF80 operates at a maximum core frequency of 80 MHz, achieving 76 MIPS (Dhrystone 2.1) when executing from internal flash memory. This frequency is sustained across industrial temperature range (–40°C to +85°C) with appropriate decoupling and power supply regulation. The peripheral bus runs at up to 40 MHz, and the on-chip PLL supports flexible clock division for optimized power/performance trade-offs in the MCF52252AF80.

Does the MCF52252AF80 include a hardware cryptographic accelerator?

Yes, the MCF52252AF80 integrates a Cryptographic Acceleration Unit (CAU) that offloads AES-128/256, DES/3DES, MD5, and SHA-1 operations from the main CPU. This hardware block reduces encryption latency by more than 10× compared to software-only implementations and is accessible via memory-mapped registers. The CAU is fully functional in the MCF52252AF80 and does not require external co-processors or firmware licensing.

What package type and pin count does the MCF52252AF80 use?

The MCF52252AF80 is offered exclusively in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. It does not support MAPBGA or 144-pin LQFP variants - those are reserved for higher-memory members like MCF52259. Pin compatibility is maintained across all 100-pin ColdFire V2 devices, allowing direct substitution where memory and peripheral requirements align in the MCF52252AF80.

Can the MCF52252AF80 support simultaneous sampling on multiple ADC channels?

Yes, the MCF52252AF80's Fast ADC includes two independent sample-and-hold (S/H) circuits enabling true simultaneous sampling on channel pairs AN0/AN1 and AN2/AN3. This capability is essential for accurate three-phase current measurement in motor control applications. Conversion results are stored in separate buffers and can trigger DMA transfers or interrupts upon completion - a feature confirmed in the MCF52252AF80's electrical specifications and functional description.

Is Mini-FlexBus available on the MCF52252AF80?

No, Mini-FlexBus is not available on the MCF52252AF80. According to the official Freescale MCF52259 datasheet (Rev. 5), Mini-FlexBus is supported only on 144-pin packages (144 LQFP and 144 MAPBGA), which correspond to MCF52255, MCF52256, MCF52258, and MCF52259 variants. The MCF52252AF80 uses the 100-pin LQFP package and omits this interface - external memory expansion must be implemented via SPI or other serial interfaces.