NXP Semiconductors MK20DN64VFM5

Overview

MK20DN64VFM5 from NXP (formerly Freescale) is a 32-bit ARM Cortex-M4 core microcontroller with DSP instructions, 64 KB program flash, 16 KB RAM, and operating voltage range of 1.71–3.6 V. It integrates USB full-/low-speed On-the-Go, dual UARTs, SPI, I²C, I²S, 16-bit SAR ADC, two analog comparators with 6-bit DACs, and real-time clock - deployed in industrial sensor nodes requiring deterministic control and low-power operation.

For engineers reviewing the MK20DN64VFM5 datasheet, MK20DN64VFM5 pinout, MK20DN64VFM5 application, or MK20DN64VFM5 equivalent, key selection considerations include its -40 to 105°C temperature rating, 50 MHz maximum core frequency, QFN-32 package footprint, FlexMemory absence (N-suffix), and verified USB transceiver integration without external PHY.

Technical Context

The MK20DN64VFM5 implements an ARM Cortex-M4 core with hardware DSP extensions but no FPU (D-suffix, not F-suffix). Its clock system includes a 3–32 MHz crystal oscillator, 32 kHz RTC oscillator, and multi-purpose clock generator supporting multiple low-power modes including VLLS0–VLLS3 and VLPR.

It features a 32-pin QFN package (5 mm × 5 mm) with dedicated USB_DP/DM pins, eight-channel PWM timer, quadrature decoder, carrier modulator transmitter, and hardware CRC module - all operating within the same 1.71–3.6 V supply domain for digital and analog rails (VDD/VDDA differential ≤ ±0.1 V).

Key Specifications

Pinout & Package

Package: 32-pin QFN (5 mm × 5 mm, FM suffix), 0.5 mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MK20DX64VFM5, MK20DN64VFM5 removes FlexMemory overhead for deterministic flash-only execution; compared with K22F512VLH12, it trades FPU and flash size for smaller QFN-32 footprint and lower static power - making it optimal for space-constrained, cost-sensitive, and ultra-low-power embedded nodes.

Availability

MK20DN64VFM5 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and motor drive feedback units requiring stable component supply across extended product lifecycles.

Supply support for MK20DN64VFM5 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MK20DN64VFM5 belongs to the Kinetis K20 family - designed specifically for cost-sensitive, low-power embedded applications demanding rich analog integration, USB connectivity, and robust real-time performance in harsh environments.

FAQ

What is the maximum operating frequency of the MK20DN64VFM5?

The MK20DN64VFM5 operates at a maximum core frequency of 50 MHz, as confirmed by its '5' suffix in the part number and validated in the K20 Sub-Family Data Sheet Rev. 4. This frequency is achievable across the full -40 to 105°C ambient temperature range when supplied with 1.71–3.6 V and using the internal PLL with appropriate clock configuration. The MK20DN64VFM5 achieves 1.25 Dhrystone MIPS per MHz, delivering 62.5 DMIPS at full speed.

Does the MK20DN64VFM5 include an integrated USB transceiver?

Yes, the MK20DN64VFM5 includes a full-/low-speed USB On-the-Go controller with an integrated transceiver - eliminating the need for an external PHY. This is explicitly stated in the K20 Sub-Family Data Sheet Section "Communication interfaces" and confirmed by dedicated USB_DP and USB_DM pins in the 32-QFN pinout. The MK20DN64VFM5 supports device, host, and OTG roles without additional silicon.

What is the flash memory configuration of the MK20DN64VFM5?

The MK20DN64VFM5 contains 64 KB of program flash memory only, with no FlexMemory (FlexNVM/FlexRAM). This is indicated by the 'N' in the part number format (MK20DN64VFM5), where 'N' denotes "program flash only". The K20 Sub-Family Data Sheet confirms that FlexMemory variants use 'X', while 'N' variants provide fixed flash and standard SRAM - simplifying memory management for deterministic applications.

What package type does the MK20DN64VFM5 use?

The MK20DN64VFM5 uses a 32-pin QFN package measuring 5 mm × 5 mm with 0.5 mm pitch and an exposed thermal pad (FM suffix). This is defined in Section 2.3 of the K20 Sub-Family Data Sheet, where 'FM' is specified as "32 QFN (5 mm x 5 mm)". The package is RoHS-compliant and moisture sensitivity level 3 (MSL3), requiring bake prior to reflow if exposed beyond floor life.

How does the MK20DN64VFM5 support low-power operation in battery-powered systems?

The MK20DN64VFM5 supports ultra-low-power operation through multiple stop modes: VLLS0 draws as low as 0.176 µA at –40 to 25°C with POR disabled, and VLLS3 draws 1.5 µA under same conditions. These modes retain RAM and select registers while disabling clocks and regulators. The MK20DN64VFM5 also includes a programmable delay block (PDB) and low-power timers for wake-up event scheduling - enabling years of operation on coin-cell batteries in wireless sensor applications.