NXP Semiconductors MCXC144VFM

Overview

MCXC144VFM from NXP is an Arm® Cortex®-M0+ microcontroller operating at up to 48 MHz, featuring 256 KB Flash, 32 KB SRAM, and 16 KB Boot ROM in a 32-pin QFN package. It integrates a 12-bit ADC, multiple timer/PWM modules, FlexIO for serial peripheral emulation, and supports low-power USB device operation without external crystal - deployed in battery-powered smart power sockets and DC fans.

For engineers reviewing the MCXC144VFM datasheet, MCXC144VFM pinout, MCXC144VFM application, or MCXC144VFM equivalent, key selection considerations include its 28 GPIOs, 1.71–3.6 V supply range, -40 to 125°C junction temperature rating, deep-sleep current of 1.96 µA (RTC + RAM retained), and absence of integrated segment LCD or USB PHY in this specific variant.

Technical Context

The MCXC144VFM implements an Arm Cortex-M0+ core with micro trace buffer and NVIC, paired with a low-leakage wake-up unit and DMA controller. Its memory subsystem includes 256 KB on-chip Flash with error correction, 32 KB SRAM, and 16 KB boot ROM containing a secure bootloader.

Peripherals include two I²C interfaces, two SPI modules, one UART, two LPUARTs, a 16-bit ADC, ACMP with 6-bit DAC, and FlexIO supporting customizable serial protocols. Power management enables very low-power run mode (54 µA/MHz) and deep-sleep mode (1.96 µA) with RTC and RAM retention.

Key Specifications

Pinout & Package

MCXC144VFM is housed in a 5 mm × 5 mm, 0.5 mm pitch 32-pin QFN package with exposed thermal pad (VFM suffix). Pin functions are defined per NXP reference schematic MCXC144VFM Rev. 0.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCXC144VFM, MCXC143VFM trades memory headroom for lower cost in resource-constrained edge nodes, while MCXC244VFM adds USB functionality at the expense of increased layout complexity and power budget - neither is pin-compatible, but both share identical 32QFN footprint and peripheral register mapping.

Availability

MCXC144VFM is available at Aetrix Electronics and suitable for smart power sockets, DC fan controllers, home security sensor hubs, and small appliance control panels requiring stable component supply across multi-year production cycles.

Supply support for MCXC144VFM 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 MCX C Series targets cost-sensitive, battery-operated edge devices needing robust low-power performance, USB connectivity (in select variants), and scalable memory - with MCXC144VFM optimized for mid-tier firmware complexity without integrated USB or LCD.

FAQ

Does MCXC144VFM include an integrated USB physical layer?

No, MCXC144VFM does not integrate a USB PHY or USB controller. Unlike MCXC24x/44x variants, it lacks USB functionality entirely. Designers requiring USB must select MCXC244VFM or MCXC444VLH and implement appropriate USB routing, termination, and ESD protection. MCXC144VFM relies on external transceivers or wireless co-processors for host communication.

What is the maximum operating frequency of the MCXC144VFM core?

The MCXC144VFM features an Arm Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achievable across the full 1.71–3.6 V supply range and -40 to 125°C temperature range, with timing closure verified per NXP's MCXC144VFM datasheet Rev. 0. No external PLL or frequency multiplier is required to reach this speed.

How many analog-to-digital converter channels does MCXC144VFM support?

MCXC144VFM integrates a single 12-bit successive approximation register (SAR) ADC with up to 8 configurable input channels (ADC0_SE0 through ADC0_SE7). Channel selection, sampling rate, and trigger sources (software, timer, or LPUART) are programmable via the ADC configuration registers in the MCU's system control block.

Is MCXC144VFM pin-compatible with other MCX C14x family members in the same package?

Yes, MCXC144VFM shares identical pinout and electrical characteristics with MCXC141VFM, MCXC142VFM, and MCXC143VFM in the 32-pin QFN (VFM) package. All four parts use the same mechanical footprint, power/ground pin assignments, and GPIO multiplexing scheme - enabling hardware reuse across firmware variants with different memory configurations.

What debug interface does MCXC144VFM provide?

MCXC144VFM supports Serial Wire Debug (SWD) via dedicated SWD_CLK and SWD_DIO pins. It includes a Micro Trace Buffer for instruction trace and full register visibility during development. No JTAG interface is implemented; debugging requires an SWD-compliant probe such as LPC-Link2 or CMSIS-DAP adapter compatible with MCUXpresso IDE or Keil MDK.