NXP Semiconductors MK20DX128VMC7

Overview

MK20DX128VMC7 from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extensions, 128 KB flash, 16 KB SRAM, and 72 MHz max CPU frequency. It integrates dual 16-bit SAR ADCs with PGA, 12-bit DAC, USB OTG, CAN, five UARTs, two I²C, two SPI, I²S, RTC, and TSI for capacitive touch. Designed for industrial control and sensor-edge applications requiring mixed-signal precision and real-time connectivity.

For engineers reviewing the MK20DX128VMC7 datasheet, MK20DX128VMC7 pinout, MK20DX128VMC7 application, or MK20DX128VMC7 equivalent, key selection criteria include its -40°C to +105°C extended temperature rating, 1.71–3.6 V supply range, low-power stop modes down to 1.47 µA, integrated analog subsystem, and QFP-compatible 121-pin MAPBGA package (MC).

Technical Context

The MK20DX128VMC7 implements the ARMv7E-M architecture with hardware divide, single-cycle MAC, and SIMD instructions. Its clock system includes a multi-purpose clock generator (MCG) supporting FEE/FBE/BLPE modes, 3–32 MHz main crystal oscillator, and 32 kHz RTC oscillator - enabling precise timing across run, VLPR, and stop power modes.

Analog integration centers on two independent 16-bit ADCs each with programmable gain amplifier (up to ×64), 12-bit DAC, three analog comparators with internal 6-bit DACs, and voltage reference module - all sharing a common 1.71–3.6 V analog supply (VDDA) with ≤0.1 V differential tolerance versus VDD.

Key Specifications

Pinout & Package

Package: 121-pin MAPBGA (8 mm × 8 mm, 0.5 mm pitch, MC designation). Pin assignments follow K20 Sub-Family Signal Multiplexing Table (Rev. 3, p.64–69), with dedicated pins for USB_DP/DM, CAN_H/L, ADC0/1 inputs, DAC_OUT, TSI channels, and multiple GPIO groups supporting configurable slew rate and drive strength.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MK20DX128VMC7, MK20DX256VMC7 offers scalable flash capacity without layout or driver changes, while MK20DN64VMC7 trades memory for lower unit cost - both retain identical low-power behavior, analog performance, and industrial temperature qualification.

Availability

MK20DX128VMC7 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and human-machine interface designs requiring stable component supply across long product lifecycles.

Supply support for MK20DX128VMC7 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with roots in Freescale's Kinetis portfolio.

The MK20DX128VMC7 belongs to the Kinetis K20 family - designed specifically for cost-sensitive, mixed-signal embedded applications demanding high analog integration, real-time responsiveness, and extended temperature operation without external support components.

FAQ

What is the maximum operating frequency of the MK20DX128VMC7?

The MK20DX128VMC7 supports a maximum system and core clock frequency of 72 MHz, achieved using the internal PLL with an external 8–32 MHz crystal. This frequency is validated across the full -40°C to +105°C temperature range and 1.71–3.6 V supply voltage, delivering 115 DMIPS of performance while maintaining specified power consumption in RUN mode.

Does the MK20DX128VMC7 include a hardware floating-point unit (FPU)?

No, the MK20DX128VMC7 implements the ARM Cortex-M4 core with DSP extensions but does not include a hardware floating-point unit. The 'D' in the part number denotes DSP capability (single-cycle MAC, SIMD), while 'F' variants (e.g., MK20FN1M0VLQ12) add the FPU. Fixed-point math and CMSIS-DSP library optimization are recommended for signal processing on MK20DX128VMC7.

What analog features are integrated into the MK20DX128VMC7?

The MK20DX128VMC7 integrates two independent 16-bit SAR ADCs (each with programmable gain amplifier up to ×64), a 12-bit DAC, three analog comparators (each with internal 6-bit DAC and programmable reference), and a precision voltage reference module. All analog blocks share a dedicated VDDA/VSSA supply domain with strict ±0.1 V differential tolerance versus VDD to ensure measurement accuracy.

Can the MK20DX128VMC7 operate in ultra-low-power modes with RTC and wake-on-comparator functionality?

Yes, the MK20DX128VMC7 supports Very-Low-Leakage Stop modes (VLLS1/VLLS2/VLLS3) with RTC running and comparator interrupts enabled. In VLLS3 mode, typical current consumption is 1.47 µA at -40–25°C, allowing years of operation on a CR2032 battery while maintaining timekeeping and responding to analog threshold events within microseconds.

What package type and pin count does the MK20DX128VMC7 use?

The MK20DX128VMC7 uses a 121-pin MAPBGA package (8 mm × 8 mm, 0.5 mm pitch), designated by the 'MC' suffix in the part number. This package provides high I/O density, thermal efficiency, and compatibility with standard PCB assembly processes - pin assignments are fully documented in the K20 Sub-Family Data Sheet Rev. 3, pages 64–69.