NXP Semiconductors MCF52258CAG66

Overview

MCF52258CAG66 from NXP (formerly Freescale) is a 32-bit ColdFire V2 RISC microcontroller designed for industrial control and connectivity applications. It operates at up to 66 MHz (63 MIPS), integrates 512 KB flash, 64 KB SRAM, FlexCAN 2.0B, USB OTG, Fast Ethernet controller (FEC), and an 8-channel 12-bit ADC with simultaneous sampling - enabling real-time motor control and networked embedded systems.

For engineers reviewing the MCF52258CAG66 datasheet, MCF52258CAG66 pinout, MCF52258CAG66 application, or MCF52258CAG66 equivalent, key selection criteria include its 144-pin LQFP package, 66 MHz core frequency, dual CAN interface capability, Mini-FlexBus support, and cryptographic acceleration unit (CAU) for secure firmware updates.

Technical Context

The MCF52258CAG66 implements the ColdFire V2 core with ISA_A+ instruction set, enhanced MAC unit, and hardware divider - delivering deterministic 63 MIPS at 66 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 real-time I/O control: FlexCAN 2.0B with 16 message buffers, FEC with descriptor-ring DMA, USB OTG with 16 endpoints, and a dual-S/H 12-bit ADC capable of simultaneous two-channel sampling triggered by SYNCA/SYNCB. The Mini-FlexBus (available in 144-pin packages) supports glueless 8-bit/16-bit external memory interfacing at up to 40 MHz bus clock.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm), RoHS-compliant, with exposed thermal pad. Pinout validated against MCF52259 144 LQFP reference design and Freescale AN3701 layout guidelines - MCF52258CAG66 shares identical pin mapping per family documentation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF52258CAG66, the MCF52259CAG80 offers higher deterministic performance within identical footprint and feature set, while the K66F18M180JMD trades integrated Ethernet and dual CAN for greater CPU speed and ARM ecosystem compatibility - making it suitable only when FEC and second CAN are not required.

Availability

MCF52258CAG66 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, secure firmware update nodes, and PLC I/O modules requiring stable component supply across extended product lifecycles.

Supply support for MCF52258CAG66 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 legacy.

The MCF52258CAG66 belongs to the ColdFire V2 microcontroller family, engineered for deterministic real-time control in harsh industrial environments - emphasizing integrated connectivity (dual CAN, FEC, USB OTG), cryptographic security (CAU), and mixed-signal precision (12-bit ADC with simultaneous sampling).

FAQ

What is the maximum operating frequency of the MCF52258CAG66?

The MCF52258CAG66 operates at a maximum core frequency of 66 MHz, delivering 63 MIPS (Dhrystone 2.1). This is confirmed in Table 1 of the MCF52259 datasheet, which explicitly lists "up to 66 or 80 MHz" for the MCF52258 variant. The 66 MHz rating reflects its optimized balance of performance, power, and thermal characteristics for industrial applications.

Does the MCF52258CAG66 support dual CAN interfaces?

Yes, the MCF52258CAG66 includes two independent FlexCAN 2.0B modules - verified in Table 1 under "FlexCAN 2.0B Module" with checkmarks for both entries. Each supports up to 16 message buffers, programmable bit rates up to 1 Mbit/s, and full CAN 2.0B protocol compliance, enabling redundant bus architectures or segregated control/network domains.

Is the Mini-FlexBus interface available on the MCF52258CAG66?

Yes, the Mini-FlexBus external bus interface is available on the MCF52258CAG66. As stated in the datasheet's "Family Configurations" section and Table 1, Mini-FlexBus is supported on all 144-pin packages - including the 144 LQFP used by MCF52258CAG66. It provides glueless 8-bit/16-bit memory interfacing with programmable wait states and up to 40 MHz bus clock operation.

What cryptographic algorithms does the CAU in the MCF52258CAG66 accelerate?

The Cryptographic Acceleration Unit (CAU) in the MCF52258CAG66 accelerates DES, 3DES, AES, MD5, and SHA-1 algorithms - as documented in Section 1.2.6 and Table 1 (CAU column). This hardware coprocessor significantly reduces execution time for firmware signature verification, secure boot, and encrypted communication, with no software library dependency.

What ADC resolution and sampling capability does the MCF52258CAG66 provide?

The MCF52258CAG66 features an 8-channel, 12-bit fast analog-to-digital converter with a minimum conversion time of 1.125 µs. It supports simultaneous sampling on two channels (e.g., AD0 and AD1) via SYNCA/SYNCB triggers - a capability confirmed in Section 1.2.15 and Table 1 - making it suitable for phase-aligned current sensing in motor control applications.