NXP Semiconductors MCF52235CAL60

Overview

MCF52235CAL60 from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V2 RISC microcontroller designed for embedded networking and industrial control applications. It operates at up to 60 MHz, delivers 56 Dhrystone 2.1 MIPS, integrates 256 KB Flash and 32 KB SRAM, and includes on-chip Fast Ethernet Controller (FEC), FlexCAN 2.0B, and Cryptographic Acceleration Unit (CAU). It targets secure, real-time communication in gateways and protocol-conversion devices.

For engineers reviewing the MCF52235CAL60 datasheet, MCF52235CAL60 pinout, MCF52235CAL60 application, or MCF52235CAL60 equivalent, key selection criteria include its integrated EPHY transceiver, CAU-accelerated AES/SHA-1 support, 80-pin LQFP package with full peripheral I/O mapping, and dual interrupt controllers enabling deterministic real-time response in industrial automation systems.

Technical Context

The MCF52235CAL60 implements the ColdFire V2 core with ISA_A+ instruction set, including dedicated EMAC unit for 16×16 and 32×32 multiply-accumulate operations and hardware divider. Its clock system integrates a PLL with crystal or external oscillator input, generating core, bus, and peripheral clocks with programmable dividers.

It features two independent interrupt controllers (INTC0/INTC1) supporting 7 fixed-priority external interrupts and per-peripheral configurable vectors, plus a full-featured FEC with on-chip EPHY supporting 10/100BASE-TX in half/full duplex with MDIO management and auto-negotiation - all implemented without external PHY components.

Key Specifications

Pinout & Package

LQFP-80 package, 14 mm × 14 mm body, 0.5 mm pitch, thermally enhanced exposed pad. Pin assignments conform to Figure 2 ("80-pin LQFP Pin Assignments") in Rev. 10 datasheet, with primary functions mapped across PORTA–PORTE, dedicated peripheral pins (e.g., FEC_RXD[3:0], FEC_TXD[3:0], CANRX/CANTX, EPHY_MDC/MDIO), and debug signals (DSI/DSO/DSCLK, ALLPST).

Key Features

Applications

Equivalent & Alternatives

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

Compared with Kinetis K64F120M and MCF52259CAG80, the MCF52235CAL60 uniquely combines integrated EPHY, CAU, and deterministic dual-INTC interrupt handling - making it irreplaceable in cost-sensitive, space-constrained industrial Ethernet nodes requiring hardware-accelerated security and precise timing.

Availability

MCF52235CAL60 is available at Aetrix Electronics and suitable for industrial gateways, protocol converters, motor control edge nodes, and time-synchronized sensor hubs requiring stable component supply and long-term lifecycle support.

Supply support for MCF52235CAL60 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 networking IP.

The MCF52235CAL60 belongs to the ColdFire V2 microcontroller product line, engineered specifically for deterministic real-time control in resource-constrained industrial networking applications - emphasizing integrated Ethernet, cryptographic acceleration, and low-latency interrupt response.

FAQ

What is the maximum operating frequency and performance rating of the MCF52235CAL60?

The MCF52235CAL60 operates at a maximum frequency of 60 MHz and delivers 56 Dhrystone 2.1 MIPS when executing from on-chip Flash memory. This performance level is achieved using the ColdFire V2 core with Enhanced Multiply-Accumulate (EMAC) unit and hardware divider, enabling efficient signal processing and real-time control tasks without external coprocessors. The MCF52235CAL60 maintains this rating across its specified industrial temperature range.

Does the MCF52235CAL60 include an integrated Ethernet physical layer (PHY)?

Yes, the MCF52235CAL60 includes a fully integrated Ethernet Physical Layer (EPHY) supporting 10/100BASE-TX operation. This on-chip transceiver eliminates the need for an external PHY IC, reducing bill-of-materials cost and PCB footprint. It supports auto-negotiation, MDIO management, full/half-duplex modes, and jumbo packets - all managed directly by the Fast Ethernet Controller (FEC) within the MCF52235CAL60.

What cryptographic functions does the CAU in the MCF52235CAL60 accelerate?

The Cryptographic Acceleration Unit (CAU) in the MCF52235CAL60 accelerates DES, 3DES, AES, MD5, and SHA-1 algorithms. It also includes a FIPS-140 compliant random number generator. This hardware offload enables secure firmware updates, TLS handshake acceleration, and authenticated communication without consuming significant CPU cycles - a critical capability for the MCF52235CAL60 in industrial security applications.

Which package type and pin count does the MCF52235CAL60 use?

The MCF52235CAL60 uses an 80-pin LQFP package with 14 mm × 14 mm body size and 0.5 mm pitch. This package exposes all essential peripherals including three UARTs, I²C, QSPI, FlexCAN, FEC/EPHY signals, ADC inputs, PWM outputs, and BDM debug interface (DSI/DSO/DSCLK). Pin assignments match Figure 2 in the Rev. 10 datasheet and are validated for industrial layout reliability.

Is real-time debug and trace supported on the MCF52235CAL60?

The MCF52235CAL60 supports Background Debug Mode (BDM) via dedicated DSI/DSO/DSCLK pins on all packages, enabling in-circuit debugging and flash programming. Real-time trace capability is implemented via PST/DDATA ports and ALLPST signal, though full trace bandwidth requires the 112- or 121-pin packages. The 80-pin MCF52235CAL60 retains essential debug functionality including hardware breakpoints and real-time halt detection via ALLPST.