NXP Semiconductors MCF5211CAE66

Overview

MCF5211CAE66 from Freescale Semiconductor is a 32-bit ColdFire V2 RISC microcontroller operating at 66 MHz, featuring 128 KB flash, 16 KB SRAM, FlexCAN 2.0B, three UARTs, I²C, QSPI, eight-channel 12-bit ADC, four DMA-capable 32-bit timers, and integrated PLL clock generation - deployed in industrial motor control and embedded CAN gateway applications.

For engineers reviewing the MCF5211CAE66 datasheet, MCF5211CAE66 pinout, MCF5211CAE66 application, or MCF5211CAE66 equivalent, key selection considerations include its 64-pin LQFP package, 66 MHz core frequency, FlexCAN support (QFN-only per documentation), 128/16 KB memory configuration, and BDM/JTAG debug interface with reduced trace capability.

Technical Context

The MCF5211CAE66 implements the ColdFire Version 2 core with MAC unit and ISA_A+ instruction set, supporting static operation up to 66 MHz and delivering 63 Dhrystone 2.1 MIPS. Its on-chip memory subsystem includes dual-ported 16 KB SRAM and 128 KB interleaved flash, both directly connected to the high-speed local bus for single-cycle CPU access.

Peripheral integration centers on deterministic real-time control: FlexCAN 2.0B with 16 message buffers (available only in 64 QFN package per Table 1), three UARTs with FIFO and DMA support, and an eight-channel 12-bit ADC with simultaneous sampling capability for motor phase current sensing. Clock management uses an 8 MHz on-chip relaxation oscillator plus PLL with programmable pre-divider (1–8) and post-divider (2ⁿ, n ≤ 15).

Key Specifications

Pinout & Package

64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions include dedicated CANRX/CANTX, UART0–2 signals, ADC input channels AN[7:0], QSPI_DIN/QSPI_DOUT/QSPI_CLK, I²C_SCL/I²C_SDA, and 56 GPIO bits via PORTA–PORTE.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF5211CAE66, the MCF5213CAG80 offers higher clock speed and memory while maintaining identical peripheral functionality and 64 LQFP footprint, whereas the Kinetis K22FN512VLH12 introduces ARM architecture, expanded memory, and new interfaces at the cost of board-level redesign and software migration effort.

Availability

MCF5211CAE66 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, energy metering gateways, and programmable logic controller I/O modules requiring stable component supply across extended product lifecycles.

Supply support for MCF5211CAE66 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 processing, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MCF5211CAE66 belongs to the ColdFire V2 microcontroller family designed for cost-sensitive, real-time embedded applications requiring deterministic interrupt response, integrated CAN, and low-power operation - particularly in motor control and industrial automation.

FAQ

What is the maximum operating frequency of the MCF5211CAE66?

The MCF5211CAE66 operates at a maximum core frequency of 66 MHz, as confirmed by Table 1 in the MCF5213EC datasheet which lists "66, 80 MHz" for the MCF5211 variant. This frequency is achieved using the on-chip PLL with external crystal or internal relaxation oscillator, and determines real-time performance limits for timer resolution, ADC sampling rate, and interrupt latency in the MCF5211CAE66.

Does the MCF5211CAE66 include FlexCAN support, and in which packages is it available?

Yes, the MCF5211CAE66 includes FlexCAN 2.0B support, but only in the 64-pin QFN package according to Table 1 footnote: "1 FlexCAN is available on the MCF5211 only in the 64 QFN package." The MCF5211CAE66 is a 64-pin LQFP variant, so FlexCAN functionality is not implemented in this specific package - users requiring CAN must select the QFN version or upgrade to MCF5213.

What memory resources are integrated into the MCF5211CAE66?

The MCF5211CAE66 integrates 128 KB of on-chip flash memory and 16 KB of static RAM (SRAM), as specified in Table 1 of the MCF5213EC datasheet under the "5211" column. The flash supports in-system programming via EzPort or background debug, while the dual-ported SRAM allows concurrent CPU and DMA access - essential for real-time buffering in the MCF5211CAE66.

What debug interfaces does the MCF5211CAE66 provide?

The MCF5211CAE66 provides Background Debug Mode (BDM) and IEEE 1149.1 JTAG interfaces, with dedicated DSI/DSO/DSCLK pins and the ALLPST signal. However, the full real-time trace capability is restricted to 100-pin packages per datasheet Section 1.1.3; the 64-pin LQFP MCF5211CAE66 supports basic BDM debugging and boundary-scan testing but not instruction-level trace streaming.

What is the ADC specification of the MCF5211CAE66?

The MCF5211CAE66 features an eight-channel, 12-bit analog-to-digital converter with minimum 1.125 μs conversion time and simultaneous sampling capability on two channels, as documented in Section 1.1.11 and Table 32 of the MCF5213EC datasheet. This ADC supports single-scan, triggered, or continuous operation modes and generates interrupts on completion or threshold violation - critical for motor current sensing in the MCF5211CAE66.