NXP Semiconductors MCF52100CAE80

Overview

MCF52100CAE80 from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V2 RISC microcontroller designed for embedded control applications requiring deterministic real-time performance, integrated peripherals, and low-power operation. It features a 80 MHz ColdFire V2 core delivering 76 MIPS (Dhrystone 2.1), 64 KB flash memory, 16 KB SRAM, dual I²C interfaces, two UARTs, an 8-channel 12-bit ADC with simultaneous sampling, and four 32-bit DMA-capable timers - deployed in industrial motor control, HVAC systems, and programmable logic controllers.

For engineers reviewing the MCF52100CAE80 datasheet, MCF52100CAE80 pinout, MCF52100CAE80 application, or MCF52100CAE80 equivalent, key selection criteria include its 64-pin LQFP package, 80 MHz maximum clock frequency, 64/16 KB flash/SRAM configuration, support for simultaneous dual-channel ADC sampling, and compatibility with ColdFire V2 toolchains and BDM debug infrastructure.

Technical Context

The MCF52100CAE80 implements the ColdFire ISA_A+ instruction set with hardware MAC unit and 32-bit accumulator for DSP-like operations. Its on-chip clock system integrates an 8 MHz relaxation oscillator, PLL with programmable pre-divider and post-divider, and selectable clock sources (crystal, OCO, or external), enabling flexible low-power and high-performance operating modes.

Peripheral integration includes a four-channel DMA controller supporting burst transfers and channel linking, a dedicated QSPI module with up to 16 queued transfers, and a dual-S/H 12-bit ADC capable of simultaneous sampling on two independent channels - all accessible via tightly coupled internal buses to minimize latency and maximize throughput in time-critical control loops.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm), RoHS-compliant, surface-mount. Pinout validated per Freescale MCF52110/MCF52100 datasheet Rev. 1 (2011), Section 3.1 and Table 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF52100CAE80, MCF52110CAE80 offers scalable flash and UART count within the same ColdFire ecosystem, while K22FN512VLH12 represents a modern ARM-based alternative requiring architectural reevaluation - neither is pin-compatible, but both address overlapping industrial control use cases with distinct trade-offs in legacy support versus feature headroom.

Availability

MCF52100CAE80 is available at Aetrix Electronics and suitable for industrial motor control, HVAC system controllers, and programmable logic controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MCF52100CAE80 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 company formed from the spin-off of Philips' semiconductor division and later the acquisition of Freescale Semiconductor in 2015.

The ColdFire family - including MCF52100CAE80 - was originally developed by Freescale for cost-sensitive, high-reliability embedded control applications demanding real-time determinism, low power, and rich peripheral integration without ARM licensing.

FAQ

What is the maximum operating frequency of the MCF52100CAE80?

The MCF52100CAE80 operates at a maximum system clock frequency of 80 MHz. This enables the ColdFire V2 core to deliver 76 MIPS (Dhrystone 2.1) performance when executing from internal flash memory. The PLL supports programmable multiplication ratios, and the on-chip 8 MHz relaxation oscillator provides a fail-safe clock source. All timing specifications - including ADC conversion time (≤1.125 µs) and DTIM resolution (12.5 ns) - are guaranteed at this rated frequency per the official datasheet Rev. 1.

Does the MCF52100CAE80 support simultaneous sampling on its ADC channels?

Yes, the MCF52100CAE80 supports true simultaneous sampling on two ADC channels using its dual sample-and-hold (S/H) circuits. This capability is explicitly documented in the MCF52110/MCF52100 datasheet Section 1.2.10 and is critical for accurate three-phase motor current measurement. The ADC can be configured for sequential scanning of up to eight channels or simultaneous capture of two independent analog inputs - both modes store results in separate, accessible buffers for deterministic firmware processing.

What debug interfaces are available on the MCF52100CAE80 in its 64-pin LQFP package?

The MCF52100CAE80 in the 64-pin LQFP package supports Background Debug Mode (BDM) and the dedicated debug serial interface (DSI/DSO/DSCLK), along with the ALLPST signal for halted-state detection. While the full JTAG trace interface is reserved for 100-pin packages, the 64-pin variant retains complete BDM functionality for real-time in-circuit debugging, breakpoint setting, and memory inspection. This aligns with Freescale's documented debug architecture (Rev. B+) and enables full firmware development using standard ColdFire BDM tools such as P&E Micro's Multilink or SEGGER J-Link with BDM firmware.

How much on-chip memory does the MCF52100CAE80 integrate, and what types are supported?

The MCF52100CAE80 integrates 64 KB of on-chip flash memory and 16 KB of static RAM (SRAM). The flash is organized as interleaved banks supporting 2-1-1-1 read accesses and is programmable via internal code execution, EzPort serial interface, or background debug commands. The SRAM is dual-ported, allowing concurrent CPU and DMA access without contention - essential for real-time buffering and double-buffered I/O schemes. Both memory blocks reside on the processor's high-speed local bus, ensuring zero-wait-state operation at 80 MHz.

Is the MCF52100CAE80 pin-compatible with any other ColdFire devices?

The MCF52100CAE80 shares the same 64-pin LQFP mechanical outline and core peripheral mapping with the MCF52110CAE80 in its 64-pin variant, but UART3 is multiplexed onto GPIO pins in the MCF52100CAE80 and fully dedicated in the MCF52110CAE80 - making them not pin-compatible. No other ColdFire device (e.g., MCF5223x or MCF5441x families) shares identical pinout, voltage domains, or peripheral register layout. Migration requires PCB redesign and firmware adaptation, even within the MCF521xx family.