NXP Semiconductors PCF52258AG80

Overview

PCF52258AG80 from NXP (formerly Freescale) is a 32-bit ColdFire V2 RISC microcontroller designed for embedded control and connectivity applications. It features an 80 MHz CPU core delivering 76 MIPS, 512 KB on-chip flash memory, 64 KB SRAM, integrated 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 PCF52258AG80 datasheet, PCF52258AG80 pinout, PCF52258AG80 application, or PCF52258AG80 equivalent, key selection criteria include its 144-pin LQFP package, 80 MHz operation with hardware cryptographic acceleration (CAU), dual-mode USB OTG support, and Mini-FlexBus interface for external memory expansion.

Technical Context

The PCF52258AG80 implements the ColdFire V2 core with ISA_A+ instruction set, enhanced MAC unit, and tightly coupled Cryptographic Acceleration Unit (CAU) supporting DES, 3DES, AES, MD5, and SHA-1. Its clock system integrates an on-chip 8 MHz relaxation oscillator, PLL, and programmable dividers enabling flexible low-power and high-performance operating modes.

Peripheral integration includes a full-featured FlexCAN 2.0B module with 16 message buffers, three UARTs (two with RTS/CTS), two I²C interfaces, QSPI master, four DMA-capable 32-bit timers (DTIM), and a dual-S/H 12-bit ADC capable of simultaneous two-channel sampling - all accessible via a unified memory-mapped register architecture.

Key Specifications

Pinout & Package

PCF52258AG80 is housed in a 144-lead LQFP package (20 mm × 20 mm, 0.5 mm pitch), with pin-compatible footprint to other MCF5225x family members in same package variant. Pin functions are fully multiplexed via PADI (Pin Assignment and Drive Strength Interface) module, enabling dynamic reconfiguration of peripheral signals to GPIO.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PCF52258AG80, MCF52259AG80 adds RNGA and enhanced FlexCAN configurability at identical performance and package, while MCF52256AG80 trades memory and connectivity for lower BOM cost - making PCF52258AG80 the optimal balance of integrated Ethernet, CAN, USB, and crypto acceleration for mid-tier industrial controllers.

Availability

PCF52258AG80 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, and secure IoT edge nodes requiring stable component supply, long-term lifecycle support, and verified production-grade firmware compatibility.

Supply support for PCF52258AG80 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 microcontroller innovation through its acquisition of Freescale.

The MCF5225x ColdFire family was engineered for high-integration, real-time embedded control in harsh environments - emphasizing deterministic timing, robust communication (CAN/Ethernet/USB), and hardware-accelerated signal processing.

FAQ

What is the maximum operating frequency of the PCF52258AG80?

The PCF52258AG80 operates at a maximum core frequency of 80 MHz, delivering 76 MIPS (Dhrystone 2.1). This frequency is achieved using the on-chip PLL locked to either an external crystal or the internal 8 MHz relaxation oscillator. The peripheral bus runs at up to 40 MHz, ensuring balanced performance across CPU and I/O subsystems. All timing specifications in the datasheet assume operation at this rated frequency.

Does the PCF52258AG80 include hardware cryptographic acceleration?

Yes, the PCF52258AG80 integrates a Cryptographic Acceleration Unit (CAU) that offloads DES, 3DES, AES, MD5, and SHA-1 operations from the main CPU. This coprocessor is tightly coupled to the ColdFire V2 core and accessible via memory-mapped registers. It significantly reduces encryption/decryption latency and CPU load - critical for secure boot, firmware signing, and TLS handshakes in industrial IoT deployments of the PCF52258AG80.

What package type and pin count does the PCF52258AG80 use?

The PCF52258AG80 is offered exclusively in a 144-lead LQFP package (20 mm × 20 mm, 0.5 mm pitch). This package provides full access to all integrated peripherals including Mini-FlexBus, FEC, USB OTG, and dual CAN transceivers. It is pin-compatible with other MCF5225x variants in the same 144-LQFP configuration, enabling scalable design reuse across the family without PCB redesign.

Can the PCF52258AG80 support simultaneous sampling on its ADC channels?

Yes, the PCF52258AG80's 8-channel 12-bit ADC supports true simultaneous sampling on two independent channel pairs (AD0/AD1 and AD2/AD3) using dual sample-and-hold circuits. This capability is essential for motor control applications requiring synchronized current sensing. The ADC achieves a minimum conversion time of 1.125 µs per channel, and results are stored in dedicated buffers accessible via DMA or CPU polling - all confirmed in the PCF52258AG80 datasheet Section 2.15.

Is the PCF52258AG80 compatible with standard JTAG debugging tools?

Yes, the PCF52258AG80 fully supports IEEE 1149.1 JTAG boundary-scan testing and debug via its dedicated TAP controller. It also implements ColdFire Debug Architecture Revision B+, enabling real-time trace, six hardware breakpoints, and background debug mode (BDM) using standard tools like P&E Multilink or SEGGER J-Link. The JTAG interface is functional across all operating modes, including low-power sleep - a key capability verified for the PCF52258AG80 in the official Freescale documentation.