NXP Semiconductors MCF5232CAB80

Overview

MCF5232CAB80 from Freescale Semiconductor is a 32-bit ColdFire V2 microcontroller featuring a 150 MHz core, 64 KB on-chip SRAM, 16-channel eTPU, four 32-bit DMA timers, three UARTs, one FlexCAN 2.0B module, and a 160-pin QFP package. It targets industrial control systems requiring deterministic real-time I/O processing, such as motor drive supervision and PLC I/O expansion.

For engineers reviewing the MCF5232CAB80 datasheet, MCF5232CAB80 pinout, MCF5232CAB80 application, or MCF5232CAB80 equivalent, key selection criteria include its 16-channel eTPU for time-critical waveform generation, single CAN interface with integrated protocol handling, and QFP-160 package compatibility with legacy MC68332-based designs.

Technical Context

The MCF5232CAB80 implements the ColdFire V2 RISC architecture with an enhanced multiply-accumulate (EMAC) unit and 8 KB instruction/data cache. Its eTPU executes autonomous timing functions-such as PWM generation, encoder counting, and pulse capture-without CPU intervention, using dedicated 6 KB local memory.

It integrates a 4-channel DMA controller supporting scatter-gather transfers, a 2-bank SDRAM controller, and an External Interface Module (EIM) for parallel memory and peripheral interfacing. The device supports up to 75 MHz bus frequency and includes dual interrupt controllers (INTC0/INTC1) for prioritized real-time response.

Key Specifications

Pinout & Package

Package: 160-pin Plastic Quad Flat Package (QFP), 24 × 24 mm body, 0.65 mm lead pitch, JEDEC MO-137AC compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF52259CAG80 and MCF52235CAG80, the MCF5232CAB80 uniquely balances QFP-160 manufacturability, 16-channel eTPU autonomy, and single-CAN industrial connectivity - making it optimal for retrofitting legacy MC68332 systems without adding Ethernet complexity or sacrificing timing precision.

Availability

MCF5232CAB80 is available at Aetrix Electronics and suitable for industrial motor drives, PLC backplanes, and energy meter gateways requiring stable component supply across extended production lifecycles.

Supply support for MCF5232CAB80 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 processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MCF523x product line was designed specifically for deterministic real-time industrial control, bridging the performance gap between legacy 68K-based MCUs and modern ARM-based alternatives while maintaining ColdFire toolchain compatibility.

FAQ

What is the maximum operating frequency of the MCF5232CAB80 core?

The MCF5232CAB80 operates at a maximum core frequency of 150 MHz, derived from an internal PLL that multiplies an external crystal or clock input. This frequency enables high-speed execution of real-time control algorithms and supports a 75 MHz bus clock for efficient peripheral access. The MCF5232CAB80 maintains stable operation across industrial temperature ranges when supplied with regulated 3.3 V OVDD and 1.5 V VDD.

Does the MCF5232CAB80 include an integrated Ethernet controller?

No, the MCF5232CAB80 does not include an Ethernet controller. Unlike the MCF5235 or MCF52259, this variant omits the Fast Ethernet Controller (FEC) and related PHY interface signals. Its peripheral set focuses on CAN, UART, QSPI, and eTPU for industrial fieldbus and deterministic I/O applications. For Ethernet-capable alternatives, consider the MCF52259CAG80, which retains the same ColdFire V2 core but adds FEC and cryptographic modules.

How many CAN interfaces does the MCF5232CAB80 support?

The MCF5232CAB80 supports one FlexCAN 2.0B module, providing full CAN protocol compliance including identifier masking, message buffering, and error handling. It exposes CANTX and CANRX pins for connection to an external CAN transceiver (e.g., TJA1050). This single-CAN configuration aligns with its positioning as a cost-optimized upgrade from the MC68332 for applications requiring one robust fieldbus interface without redundancy.

What package type is used for the MCF5232CAB80?

The MCF5232CAB80 uses a 160-pin Plastic Quad Flat Package (QFP) with 0.65 mm lead pitch and 24 mm × 24 mm body size. This package is mechanically and electrically compatible with legacy MC68332 designs, enabling straightforward PCB migration. Pin assignments follow the MCF523x family standard, with dedicated eTPU, UART, CAN, and external memory interface signals mapped to perimeter pins for ease of routing.

Is the eTPU in the MCF5232CAB80 identical to that in the MCF5235?

Yes, the MCF5232CAB80 implements the same 16-channel eTPU with 6 KB of dedicated RAM as specified for the MCF523x family. All eTPU channels share identical instruction set architecture, timing resolution (up to 1 ns), and peripheral trigger sources (e.g., timer overflows, GPIO edges, CAN message reception). The functional equivalence is confirmed in Table 1 of the MCF523x Family Configurations document, where both MCF5232 and MCF5235 list "16-ch / 6K" for eTPU.