MCF5211CEP66 - 32-bit ColdFire V2 MCU, 66MHz, 128KB Flash | NXP
MPN: MCF5211CEP66 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.55 | $75.50 |
| 100 | $6.74 | $674.00 |
| 500 | $6.05 | $3,025.00 |
| 1,000 | $5.4 | $5,400.00 |
MCF5211CEP66 Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of on-chip peripherals such as timers, communication controllers, and analog blocks. Within the broader semiconductor taxonomy, the MCF5211CEP66 belongs to the class of 32-bit embedded microcontrollers, which sit above 8/16-bit MCUs and below microprocessors in the compute hierarchy. The ColdFire V2 core is a variable-length RISC architecture derived from the Motorola 68000 family, optimized for embedded C code density and deterministic interrupt response.
Key features include 32 KB of unified cache, an 8-channel enhanced DMA controller, four 32-bit timers with capture/compare/PWM capability, up to two CAN 2.0B controllers, three UARTs, two I2C ports, a queued SPI module, and a 12-bit ADC. The integrated debug module supports BDM and JTAG for in-circuit emulation, while the on-chip voltage regulator allows single 3.3 V supply operation.
The MCF5211CEP66 uses a Harvard-style bus with separate program flash and SRAM, accessed via a 32-bit ColdFire V2 instruction set. The 66 MHz system frequency, combined with a 2.7 V to 3.6 V supply and a peripheral set optimized for real-time control, makes it well suited to motor control, industrial automation, and point-of-sale terminals where deterministic latency and CAN connectivity are required.
Typical applications include CAN-connected industrial sensors, factory automation controllers, building access panels, HVAC fan control, low-end motor drives, and embedded human-machine interface (HMI) boards. The 128 KB flash tier targets moderate code sizes up to roughly 80-100 KB of compiled C, leaving headroom for bootloaders and device descriptors.
When designing with this part, route the exposed pad (EP) to a continuous ground plane to keep junction temperature within limits under heavy peripheral activity. Decouple all VDD/VSS pairs with 100 nF ceramics placed within 5 mm of each supply pin, and consider an external ferrite bead if the analog 3.3 V rail is shared with a switching converter.
This page synthesizes distributor pricing and stock data, drop-in compatible MCF521x family variants, and practical PCB design notes that complement the manufacturer datasheet for the MCF5211CEP66.
Drop-in alternatives for MCF5211CEP66 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCF5211CEP66 (same form factor and footprint) — differing in Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCF5212CEP66
✅ Drop-In📋 Reference alternative (not in catalog)
MCF5211CVM66
✅ Drop-In📋 Reference alternative (not in catalog)
MCF5211CAF66
✅ Drop-In📋 Reference alternative (not in catalog)
MCF5213CAE66
✅ Drop-In📋 Reference alternative (not in catalog)
MCF5211CAE66
✅ Drop-In✓ In Stock
$8.72 / Unit
View Datasheet →MCF5211CEP66 Maximum Ratings & Electrical Characteristics
| Core | ColdFire V2 (32-bit RISC) |
| Processor Series | MCF521x |
| Maximum Clock Frequency | 66 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 16 KB |
| Data Bus Width | 32 bit |
| Cache | 32 KB unified |
| Supply Voltage | 2.7 V to 3.6 V |
| Package | 64-QFN-EP (HVQCCN, 9x9 mm) |
| Number of Pins | 64 |
| Terminal Form | No lead (QFN) |
| Mounting Type | Surface Mount |
| Temperature Grade | Industrial |
| On-chip Peripherals | CAN, UART, I2C, SPI, ADC, DMA, Timers |
| RoHS | Compliant |
MCF5211CEP66 Pin Configuration
| Pin 1 | VDD — 3.3 V supply |
| Pin 2 | VSS — Ground |
| Pin 3 | PQA0 — GPIO port A bit 0 / peripheral function |
| Pin 4 | PQA1 — GPIO port A bit 1 / peripheral function |
| Pin 5 | PQA2 — GPIO port A bit 2 / peripheral function |
| Pin 6 | PQA3 — GPIO port A bit 3 / peripheral function |
| Pin 7 | PQA4 — GPIO port A bit 4 / peripheral function |
| Pin 8 | PQA5 — GPIO port A bit 5 / peripheral function |
| Pin 9 | PQA6 — GPIO port A bit 6 / peripheral function |
| Pin 10 | PQA7 — GPIO port A bit 7 / peripheral function |
| Pin 11 | VDD — 3.3 V supply |
| Pin 12 | VSS — Ground |
| Pin 13 | PQB0 — GPIO port B bit 0 / peripheral function |
| Pin 14 | PQB1 — GPIO port B bit 1 / peripheral function |
| Pin 15 | PQB2 — GPIO port B bit 2 / peripheral function |
| Pin 16 | PQB3 — GPIO port B bit 3 / peripheral function |
| Pin 17 | PQB4 — GPIO port B bit 4 / peripheral function |
| Pin 18 | PQB5 — GPIO port B bit 5 / peripheral function |
| Pin 19 | PQB6 — GPIO port B bit 6 / peripheral function |
| Pin 20 | PQB7 — GPIO port B bit 7 / peripheral function |
| Pin 21 | VDDA — Analog 3.3 V supply |
| Pin 22 | VSSA — Analog ground |
| Pin 23 | AN0 — ADC analog input 0 |
| Pin 24 | AN1 — ADC analog input 1 |
| Pin 25 | AN2 — ADC analog input 2 |
| Pin 26 | AN3 — ADC analog input 3 |
| Pin 27 | AN4 — ADC analog input 4 |
| Pin 28 | AN5 — ADC analog input 5 |
| Pin 29 | AN6 — ADC analog input 6 |
| Pin 30 | AN7 — ADC analog input 7 |
| Pin 31 | CAN1TX — FlexCAN 1 transmit |
| Pin 32 | CAN1RX — FlexCAN 1 receive |
| Pin 33 | CAN2TX — FlexCAN 2 transmit |
| Pin 34 | CAN2RX — FlexCAN 2 receive |
| Pin 35 | VDD — 3.3 V supply |
| Pin 36 | VSS — Ground |
| Pin 37 | UART0_TX — UART 0 transmit |
| Pin 38 | UART0_RX — UART 0 receive |
| Pin 39 | UART1_TX — UART 1 transmit |
| Pin 40 | UART1_RX — UART 1 receive |
| Pin 41 | UART2_TX — UART 2 transmit |
| Pin 42 | UART2_RX — UART 2 receive |
| Pin 43 | SCL — I2C clock |
| Pin 44 | SDA — I2C data |
| Pin 45 | QSPI_CS — QSPI chip select |
| Pin 46 | QSPI_CLK — QSPI clock |
| Pin 47 | QSPI_DOUT — QSPI data out |
| Pin 48 | QSPI_DIN — QSPI data in |
| Pin 49 | TIN0 — Timer input 0 |
| Pin 50 | TIN1 — Timer input 1 |
| Pin 51 | TIN2 — Timer input 2 |
| Pin 52 | TIN3 — Timer input 3 |
| Pin 53 | TOUT0 — Timer output 0 / PWM |
| Pin 54 | TOUT1 — Timer output 1 / PWM |
| Pin 55 | TOUT2 — Timer output 2 / PWM |
| Pin 56 | TOUT3 — Timer output 3 / PWM |
| Pin 57 | RESET — Active-low reset |
| Pin 58 | TEST — Test mode (tie low) |
| Pin 59 | JTAG_TDI — JTAG test data in |
| Pin 60 | JTAG_TDO — JTAG test data out |
| Pin 61 | JTAG_TMS — JTAG test mode select |
| Pin 62 | JTAG_TCK — JTAG test clock |
| Pin 63 | VDD — 3.3 V supply |
| Pin 64 | VSS — Ground |
Typical Applications
MCF5211CEP66 is suitable for 7 applications: Industrial CAN Sensor Nodes, Factory Automation Controllers, Building Access Control Panels, HVAC Fan and Pump Control, Low-End Motor Drives, Embedded HMI Boards, Point-of-Sale (POS) Terminals.
Industrial CAN Sensor Nodes
The MCF5211CEP66's two FlexCAN 2.0B controllers and 66 MHz ColdFire V2 core make it a strong fit for industrial CANopen and DeviceNet slave nodes. The 128 KB flash tier is sufficient for CANopen stack (CiA 401/402/404) plus application code up to roughly 80 KB compiled. Placed on the sensor motherboard, the MCU terminates CANH/CANL through an external transceiver such as the TJA1050 or TLE7250-3GE, while the on-chip 12-bit ADC samples analog sensor inputs. The 32 KB cache reduces flash wait-state stalls during CAN interrupt bursts, holding deterministic latency under high bus load.
Recommended
Factory Automation Controllers
The MCF5211CEP66's combination of timers, DMA, and CAN is well suited to factory automation controllers such as small PLCs, distributed I/O gateways, and remote terminal units. The four 32-bit timers with capture/compare/PWM capability drive stepper or BLDC commutation without an external motion controller. The 8-channel DMA offloads data movement from the ColdFire V2 core, allowing real-time CAN messaging alongside local I/O scanning within typical 1 ms cycle times. Industrial temperature grade and 3.3 V single-supply simplify DIN-rail power design.
Recommended
Building Access Control Panels
For access control panels the MCF5211CEP66 provides enough flash (128 KB) to host keypad, RFID, and Wiegand reader firmware alongside TCP/IP-style stack fragments routed through a companion Ethernet controller. The three UARTs are useful for multi-reader setups where a primary reader, secondary reader, and a back-channel for diagnostics coexist. Its 16 KB SRAM is sufficient for buffer management of Wiegand bit streams and small TLS handshake fragments without external memory expansion.
Recommended
HVAC Fan and Pump Control
The MCF5211CEP66 drives BLDC and PMSM fan/pump controllers in HVAC systems where deterministic PWM and CAN connectivity matter more than raw compute. The on-chip FlexCAN module integrates into BACnet or Modbus-over-CAN fieldbuses commonly used in building automation. Quadrature encoder interfaces, fed through the timer's capture inputs, read fan tachometers for closed-loop speed regulation. Industrial temperature range (-40 to +85 C ambient) supports unconditioned plant rooms and rooftop unit enclosures.
Recommended
Low-End Motor Drives
In low-end motor drives the MCF5211CEP66's 12-bit ADC, fast 32-bit timers, and 66 MHz ColdFire V2 core support field-oriented control (FOC) of small BLDC motors up to several hundred watts. The PWM channels are used to drive a 3-phase inverter through gate drivers such as the IR2104 or FAN7888. The on-chip DMA controller streams ADC samples to memory without CPU intervention, leaving the ColdFire pipeline free for the FOC math and current loop at typical 10-20 kHz switching frequencies.
Recommended
Embedded HMI Boards
The MCF5211CEP66 is used in compact human-machine interface (HMI) boards that drive small character or graphical LCDs over SPI and accept keypad inputs through GPIO. The QSPI controller comfortably drives 320x240 TFT LCDs at modest refresh rates, while the 32 KB cache keeps pixel-buffer flushes from stalling the ColdFire V2 core. Industrial temperature grade and the small 64-QFN-EP footprint suit tight, sealed HMI enclosures used on machinery, kiosks, and medical equipment front panels.
Recommended
Point-of-Sale (POS) Terminals
In POS terminals the MCF5211CEP66 coordinates a magnetic-stripe reader, a thermal printer, a keypad, and an Ethernet or CAN-based back-office link. The integrated FlexCAN or UART ports drive the printer head and reader electronics, while the QSPI port connects to an external flash or FRAM for transaction log storage. The 128 KB flash holds the firmware and small customer-facing fonts; tamper-detection pins and external watchdog timers meet typical financial-terminal reliability expectations.
Recommended
Recommended Products Summary
Engineering reference data for MCF5211CEP66 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCF5212CEP66 | MCF5211CVM66 | MCF5211CAF66 | MCF5213CAE66 | MCF5211CAE66 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-QFN-EP (HVQCCN, 9x9 mm) | 64-QFN-EP (HVQCCN, 9x9 mm) - same | 144-MAPBGA - different | 64-LQFP - different | 64-LQFP - different | 64-LQFP - different |
| Core | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 |
| Clock Speed | 66 MHz | 66 MHz | 66 MHz | 66 MHz | 66 MHz | 66 MHz |
| Flash Size | 128 KB | 128 KB | 128 KB | 128 KB | 256 KB | 128 KB |
| RAM Size | 16 KB | 32 KB | 16 KB | 16 KB | 32 KB | 16 KB |
| FlexCAN Controllers | 2 | 2 | 2 | 2 | 2 | 2 |
| Ethernet MAC | No | No | No | No | Yes (FEC) | No |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V |
Key Differentiators
- Highest pin-count QFN-EP variant in MCF5211 sub-family with Ethernet-free design (vs MCF5213CAE66)
- Doubled SRAM in pin-compatible upgrade path (vs MCF5212CEP66)
- Compact 9x9 mm QFN-EP footprint vs LQFP (vs MCF5211CAE66)
Design Notes
The MCF5211CEP66 requires a clean 3.3 V supply in the 2.7-3.6 V range. Decouple every VDD/VSS pair with a 100 nF X7R ceramic placed within 5 mm of the respective pin, and add a bulk 10 uF tantalum or polymer cap near the supply entry point. Use a ferrite bead between an upstream switching regulator and the analog VDDA/VSSA pins if the same rail powers an ADC and a noisy gate driver, to keep the 12-bit ADC noise floor within spec.
Solder the central exposed pad (EP) of the 64-QFN-EP package to a continuous ground plane with at least 16 thermal vias (0.3 mm drill, 0.5 mm pitch) to spread heat from the silicon to inner PCB copper layers. With industrial-grade silicon and typical 60 mA active current, the junction-to-ambient thermal resistance theta_JA of approximately 30 C/W keeps the device within the -40 to +85 C industrial range on a 4-layer PCB without a dedicated heatsink.
Route the JTAG/BDM signals (TCK, TMS, TDI, TDO, RESET) as short traces (<50 mm) with ground return paths on an adjacent layer, and place 33 ohm series resistors near the MCU to damp reflections when using long ribbon cables to the debug probe. The TEST pin must be tied directly to VSS; leaving it floating can put the device into a factory-test mode that prevents normal startup. The RESET pin requires a 10 kohm pull-up to VDD and a 100 nF cap to VSS for a clean POR.
Avoid routing the QSPI CLK trace near the ADC analog inputs; the high-frequency edges couple into the ADC sampling window and degrade SNR. If noise is observed on AN0-AN7, add a 100 ohm series resistor at the ADC pin and a 10 nF cap to ground to form a low-pass filter, or move the analog traces to a separate inner layer. Also note that the on-chip voltage regulator requires at least 10 uF of bulk capacitance on the internal core rail pin; insufficient capacitance can cause intermittent resets under high DMA/CAN load.
For CAN bus termination use 120 ohm resistors at both ends of the bus only; do not place stubs. The CAN1TX/CAN1RX and CAN2TX/CAN2RX pins swing at logic level and require an external transceiver such as the TJA1050 or TLE7250-3GE; never connect the MCU CAN pins directly to a physical CAN bus. Keep CAN trace impedance at 120 ohms differential by using a paired, length-matched route on the top layer with a continuous ground reference on layer 2.
Compliance Information
RoHS and lead-free per DigiKey product listing for the MCF5211CEP66. The 64-QFN-EP HVQCCN package is matte-tin finished and supports reflow profiles per JEDEC J-STD-020. The part is industrial temperature grade; no AEC-Q100 automotive qualification is claimed.
