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NXP Semiconductors MCXC143VFM
- Part No.:
- MCXC143VFM
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-UFQFN Exposed Pad
- Datasheet:
-
MCXC143VFM.pdf
- Description:
- 48MHz, Cortex-M0+
- Quantity:
- Payment:
- Shipping:
Inventory:455
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Product details
Overview
MCXC143VFM from NXP is an entry-level Arm® Cortex®-M0+ microcontroller operating at up to 48 MHz, featuring 128 KB Flash, 16 KB SRAM, and 28 GPIOs in a 32-pin QFN package. It delivers low-power USB connectivity, segment LCD support, and operates across -40°C to 125°C junction temperature for battery-powered smart power sockets and DC fans.
For engineers reviewing the MCXC143VFM datasheet, MCXC143VFM pinout, MCXC143VFM application, or MCXC143VFM equivalent, key selection criteria include its 128 KB Flash/16 KB SRAM configuration, USB FS 2.0 device capability without external crystal, FlexIO peripheral for custom serial emulation, and deep-sleep current of 1.96 µA with RAM + RTC retention.
Technical Context
The MCXC143VFM implements an Arm Cortex-M0+ core with micro trace buffer and SWD debug interface, paired with a low-leakage wake-up unit and DMA controller. Its system architecture integrates dual LPUARTs, two I²C and two SPI interfaces, and a 12-bit ADC with ACMP and 6-bit DAC.
Power management includes very low-power run mode (54 µA/MHz), deep sleep (1.96 µA with RAM + RTC retained), and static mode down to 77 nA. Voltage operation spans 1.71–3.6 V, enabling direct integration into single-cell Li-ion or 3.3 V industrial rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, 48 MHz max - enables deterministic real-time control with minimal code footprint |
| Flash / SRAM | 128 KB / 16 KB - supports secure bootloader, firmware updates, and multi-tasking RTOS applications |
| USB Interface | USB FS 2.0 device, crystal-less - eliminates external 12 MHz crystal, reducing BOM cost and board space |
| Low-Power Deep Sleep | 1.96 µA with RAM + RTC retained - sustains timekeeping and sensor wake-up state during extended idle periods |
| Segment LCD Support | Up to 24×8 or 28×4 segments - drives basic HMI displays in smart lighting and appliance panels without external driver IC |
| FlexIO | Programmable serial peripheral emulator - replaces discrete UART/I²C/SPI peripherals or implements custom protocols like IR or 1-Wire |
| Operating Voltage | 1.71–3.6 V - compatible with single Li-ion (3.0–3.6 V) or regulated 1.8/3.3 V supply domains |
Pinout & Package
MCXC143VFM is housed in a 32-pin QFN package (5 mm × 5 mm, 0.5 mm pitch) with wettable flanks, optimized for automated optical inspection and thermal performance in compact designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Power supply / Ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports 1.71–3.6 V operation |
| USB_DP / USB_DM | USB differential data lines | Integrated transceiver with internal termination and crystal-less PLL - no external oscillator required |
| SLCD_SEGx / SLCD_COMy | Segment LCD drive outputs | Configurable as up to 28 segment and 4 common lines - drives multiplexed LCD without external bias generator |
| FLEXIO_DATA0–FLEXIO_DATA7 | Flexible serial I/O pins | Programmable as UART, I²C, SPI, or custom bit-banged protocols - reduces need for companion logic ICs |
| ADC0_SE0–ADC0_SE7 | Analog input channels | Eight single-ended inputs for 12-bit ADC - monitors battery voltage, temperature, or motor current with ±1 LSB INL |
| WAKEUP / RESET_b | Low-power wake source / active-low reset | WAKEUP pin triggers exit from deep sleep in ≤7.5 µs; RESET_b supports external push-button or supervisor IC |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB FS 2.0 | Eliminates 12 MHz crystal and load capacitors - reduces component count and layout complexity for USB-enabled edge nodes |
| Segment LCD controller | Drives up to 224 segments (28×8) with integrated bias generation - enables low-cost HMI in smart plugs and fan controls |
| Boot ROM with loader | Enables field firmware updates via UART or USB without external programmer - simplifies production programming and post-deployment patches |
| 80-bit unique ID | Provides immutable device identity for secure provisioning, license binding, or anti-cloning in OEM deployments |
| Advanced flash security | Includes flash protection regions, secure boot, and debug lock - prevents unauthorized firmware readout or debugger attachment |
Applications
| Smart Power Socket | DC Fan Controller |
|---|---|
Use Scenario: Wi-Fi/BLE-enabled socket monitoring load current, scheduling on/off cycles, and reporting energy usage. IC Role / Device Role / Timing Role: Main MCU handling USB-based firmware updates, segment LCD status display, and ADC-based current sensing. Use Value: Crystal-less USB and 1.96 µA deep sleep enable reliable over-the-air updates and >1-year battery life in backup power mode. | Use Scenario: Closed-loop speed control of brushless DC fans using PWM, thermistor feedback, and user button interface. IC Role / Device Role / Timing Role: Real-time motor timing controller with 6-channel PWM, ADC for temperature/current, and FlexIO for custom tachometer decoding. Use Value: Integrated 6-ch + 2-ch timer/PWM and 12-bit ADC eliminate external timing ICs and analog front-end components. |
| Home Security Sensor | Smart Lighting Panel |
Use Scenario: Battery-powered door/window contact sensor with motion detection, tamper alert, and wireless transmission. IC Role / Device Role / Timing Role: Ultra-low-power system controller managing wake-on-interrupt, RTC timestamping, and secure sensor data packaging. Use Value: 77 nA static mode and 7.5 µs wake-up time extend CR2032 battery life beyond 5 years in intermittent sensing duty cycle. | Use Scenario: Dimmable LED panel with touch buttons, ambient light sensing, and local brightness adjustment via segment LCD. IC Role / Device Role / Timing Role: HMI coordinator driving 24×8 segment LCD, reading capacitive touch inputs, and modulating LED current via PWM. Use Value: On-chip SLCD controller and FlexIO for touch scanning reduce external driver ICs and simplify PCB layer count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCXC142VFM | 64 KB Flash, 16 KB SRAM, same 32QFN package and peripheral set | Limited firmware feature depth; insufficient for dual-protocol stacks or large OTA images | Select when application requires only basic USB HID or simple sensor aggregation without complex middleware |
| MCXC144VFM | 256 KB Flash, 32 KB SRAM, identical package and peripheral complement | Supports full USB CDC + BLE stack coexistence, larger RTOS partitions, and encrypted firmware storage | Choose for future-proofing, secure boot with signature verification, or multi-interface gateway functionality |
Compared with MCXC142VFM and MCXC144VFM, the MCXC143VFM provides optimal balance: sufficient Flash for USB device class + SLCD + sensor fusion firmware, while maintaining cost and power efficiency for mid-tier smart appliances without over-provisioning memory.
Availability
MCXC143VFM is available at Aetrix Electronics and suitable for smart power sockets, DC fan controllers, home security sensors, and smart lighting panels requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade temperature range (-40°C to 125°C).
Supply support for MCXC143VFM 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 requiring low-power USB, segment LCD, and robust security - delivering scalable entry-level Arm Cortex-M0+ performance with NXP's proven MCU ecosystem and MCUXpresso toolchain support.
FAQ
Does MCXC143VFM require an external crystal for USB operation?
No, MCXC143VFM integrates a crystal-less USB FS 2.0 transceiver with an internal PLL that locks to the internal high-frequency oscillator. This eliminates the need for a 12 MHz external crystal and associated load capacitors, reducing BOM cost and PCB area. The MCXC143VFM maintains full USB compliance and enumeration reliability across its 1.71–3.6 V operating range without external timing components.
What segment LCD configurations does MCXC143VFM support?
The MCXC143VFM supports up to 24×8 or 28×4 segment-combination LCDs using its integrated SLCD controller. It provides built-in bias generation and COM/SEG drive capability, eliminating external LCD bias ICs. Configuration is software-selectable via register settings, and the MCXC143VFM supports static, 2-, 3-, or 4-multiplex modes - ideal for status displays in smart power sockets and fan control panels.
How does MCXC143VFM achieve ultra-low deep-sleep current?
The MCXC143VFM achieves 1.96 µA deep-sleep current by disabling all clocks except RTC, retaining SRAM and RTC registers, and powering down analog peripherals and Flash. Its enhanced low-leakage process and dedicated power gating allow full context retention with minimal leakage. Wake-up occurs in ≤7.5 µs via GPIO, RTC alarm, or LPUART activity - critical for battery-powered sensors where duty cycling dominates lifetime.
Is MCXC143VFM pin-compatible with other MCX C14x family members?
Yes, MCXC143VFM shares the same 32-pin QFN (VFM) package footprint and pinout with MCXC141VFM, MCXC142VFM, and MCXC144VFM. All four variants use identical mechanical dimensions, pad layout, and signal mapping - enabling hardware reuse across Flash/SRAM variants. This allows design scalability from 32 KB to 256 KB Flash without PCB revision, provided peripheral usage aligns with each variant's capabilities.
What debug and programming interfaces are supported by MCXC143VFM?
The MCXC143VFM supports SWD (Serial Wire Debug) with Micro Trace Buffer for real-time instruction tracing and breakpoints, plus a UART-based ROM bootloader for field firmware updates. It is fully compatible with MCUXpresso IDE, Keil MDK, and IAR Embedded Workbench. No external debugger is required for basic programming - the onboard SWD interface enables full flash erase, program, and debug via standard ARM-compliant probes like LPC-Link2 or J-Link.
MCXC143VFM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-UFQFN Exposed Pad
- Series:
- MCX C
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 28
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCXC143VFM FAQ
1.How can I place an order for MCXC143VFM through Aetrix?
Please submit a Request for Quotation (RFQ) for MCXC143VFM on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCXC143VFM reliable?
The price and inventory of MCXC143VFM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCXC143VFM is usually 5 days.
3.What payment methods are accepted for MCXC143VFM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCXC143VFM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCXC143VFM?
MCXC143VFM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCXC143VFM order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCXC143VFM?
For technical support, including MCXC143VFM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCXC143VFM requirements.
6.How does Aetrix verify that MCXC143VFM is sourced from the original manufacturer or authorized distributors?
All MCXC143VFM products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCXC143VFM meets industry standards.
7.What is the process for return or replacement of MCXC143VFM?
All MCXC143VFM units undergo pre-shipment inspection (PSI). If there is an issue with MCXC143VFM, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCXC143VFM part is unused and in its original packaging.
Return procedure for MCXC143VFM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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