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NXP Semiconductors MCXC142VFM
- Part No.:
- MCXC142VFM
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-UFQFN Exposed Pad
- Datasheet:
-
MCXC142VFM.pdf
- Description:
- 48MHz, Cortex-M0+
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
MCXC142VFM from NXP is an entry-level Arm® Cortex®-M0+ microcontroller operating at up to 48 MHz, featuring 64 KB Flash, 16 KB SRAM, and 16 KB Boot ROM in a 32-pin QFN package. It integrates a 12-bit ADC, multiple timer/PWM modules, low-power USB FS 2.0 (crystal-free), and supports segment LCD drive for cost-sensitive, battery-powered applications such as smart power sockets and DC fans.
For engineers reviewing the MCXC142VFM datasheet, MCXC142VFM pinout, MCXC142VFM application, or MCXC142VFM equivalent, key selection considerations include its 32QFN footprint, crystal-free USB capability, 1.71–3.6 V supply range, -40 to 125°C temperature rating, and FlexIO-enabled peripheral emulation for custom serial protocols.
Technical Context
The MCXC142VFM 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 64 KB on-chip Flash with error correction, 16 KB SRAM with retention control, and 16 KB Boot ROM containing a configurable bootloader.
Peripherals are organized around energy efficiency: dual LPUARTs support asynchronous communication in ultra-low-power states; FlexIO enables software-defined I²C/SPI/UART emulation; and the 12-bit ADC operates with internal voltage reference and programmable sampling rates down to 1.2 MS/s.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, 48 MHz max - deterministic real-time execution with <10 ns interrupt latency |
| Flash / SRAM | 64 KB / 16 KB - sufficient for USB device stack + sensor fusion firmware with OTA update space |
| USB Interface | Full-Speed 2.0 device, crystal-free - eliminates external 12 MHz oscillator and associated BOM cost |
| ADC | 12-bit SAR, up to 1.2 MS/s - supports precision analog sensing in motor control or power monitoring |
| Low-Power Modes | 54 μA/MHz run, 1.96 μA deep sleep (RTC+RAM retained) - enables multi-year battery life in intermittent-sensing nodes |
| Supply Voltage | 1.71–3.6 V - compatible with single-cell Li-ion, 3×AA, or regulated 3.3 V rails |
| Temperature Range | -40 to 125°C (Tj) - qualified for under-hood or enclosed industrial enclosure use |
Pinout & Package
MCXC142VFM is housed in a 32-pin QFN package (5 mm × 5 mm, 0.5 mm pitch) with wettable flanks, exposing VDD, VSS, GPIOs, USB D+/D−, reset, SWD debug pins, and dedicated analog inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Power supply / ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports split analog/digital ground layout |
| PTE0–PTE7 | GPIO / ADC0_SE0–SE7 | 8-channel 12-bit ADC input multiplexed with GPIO; usable for thermistor or current-sense voltage monitoring |
| PTB0–PTB7 | GPIO / LPUART0_RX/TX | Dual LPUART channels enable simultaneous BLE bridge + local UART debug without resource conflict |
| USB_DP / USB_DM | USB Full-Speed differential pair | Crystal-free operation uses internal PLL; requires only 22 Ω series resistors and ESD protection diodes |
| SWD_CLK / SWD_DIO | Serial Wire Debug interface | 2-pin debug access enables in-circuit programming and real-time trace via Micro Trace Buffer |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-free USB FS 2.0 | Eliminates external 12 MHz crystal and load capacitors, reducing BOM count and PCB area by ≥3 components |
| FlexIO peripheral | Configurable logic engine enabling custom SPI/I²C/UART bit-banging without CPU overhead or additional ICs |
| Boot ROM with loader | Enables field firmware updates over UART or USB without external programmer; supports encrypted image validation |
| 80-bit unique ID | Provides hardware-rooted device identity for secure provisioning, license binding, or anti-cloning in OEM deployments |
| Advanced flash security | Region-based read/write protection, secure boot enforcement, and debug lock prevent unauthorized firmware extraction or modification |
Applications
| Smart Power Socket | DC Fan Controller |
|---|---|
Use Scenario: AC outlet with energy monitoring, Wi-Fi/BLE connectivity, and remote on/off scheduling. IC Role / Device Role / Timing Role: Main system controller managing relay drive, current sensing ADC, USB-based configuration, and low-power sleep between polling cycles. Use Value: 1.96 μA deep sleep with RTC wake-up enables >5-year battery backup for configuration retention during AC loss. | Use Scenario: Brushless DC fan module with speed regulation, thermal shutdown, and audible alarm feedback. IC Role / Device Role / Timing Role: Real-time PWM generator with ADC-based temperature feedback loop and fault detection logic. Use Value: 7.5 μs wake-up from full retention allows immediate response to overtemperature events without firmware restart delay. |
| Home Security Sensor Hub | Smart Lighting Node |
Use Scenario: Battery-powered door/window contact sensor aggregating PIR, magnetic reed switch, and tamper detection signals. IC Role / Device Role / Timing Role: Ultra-low-power event coordinator sampling sensors intermittently and transmitting alerts via LPUART to gateway. Use Value: 54 μA/MHz run mode enables continuous sensor polling at <10 μA average current using duty-cycled operation. | Use Scenario: LED driver node supporting dimming profiles, color mixing, and occupancy-based auto-off. IC Role / Device Role / Timing Role: Timing-critical PWM controller synchronizing multiple LED channels while interpreting I²C commands from master MCU. Use Value: FlexIO emulates I²C slave interface on arbitrary pins, freeing dedicated I²C hardware for other subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCXC141VFM | 32 KB Flash, 8 KB SRAM, same 32QFN package and peripheral set | Limited to simpler firmware (e.g., basic timer + GPIO control); insufficient space for USB stack + OTA | Select when USB functionality is not required and BOM cost reduction is primary |
| MCXC242VFM | Adds crystal-free USB FS 2.0, same Flash/SRAM, identical 32QFN footprint | Enables host-facing USB device roles (e.g., HID keyboard, CDC serial adapter) not supported by MCXC142VFM | Select when USB device enumeration or PC-companion features are mandatory |
Compared with MCXC141VFM, MCXC142VFM doubles Flash and SRAM for richer firmware; compared with MCXC242VFM, it omits USB PHY but retains identical power/performance envelope for non-USB edge nodes.
Availability
MCXC142VFM is available at Aetrix Electronics and suitable for smart power sockets, DC fan controllers, and home security sensor hubs requiring stable component supply across production lifecycles.
Supply support for MCXC142VFM 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 low-power processing, integrated analog peripherals, and flexible connectivity-designed specifically for appliance, lighting, and security endpoints.
FAQ
Does MCXC142VFM support USB device functionality?
No, MCXC142VFM does not include a USB transceiver or USB PHY. While it belongs to the MCX C14x family that includes USB-capable variants like MCXC242VFM, the MCXC142VFM variant explicitly omits USB hardware per NXP's official part numbering matrix and datasheet revision MCXCFS REV 0. Its peripheral set focuses on low-power analog and timing functions without USB connectivity.
What is the maximum operating frequency of MCXC142VFM?
The MCXC142VFM operates at a maximum core clock frequency of 48 MHz, enabled by its Arm Cortex-M0+ processor and internal high-frequency oscillator. This frequency is fully supported across the entire specified temperature range (-40 to 125°C) and supply voltage range (1.71–3.6 V), with timing closure verified in NXP's characterization lab per MCXCFS REV 0.
Is MCXC142VFM pin-compatible with other MCX C14x variants in 32QFN?
Yes, MCXC142VFM shares identical pinout and package dimensions (32-pin QFN, 5 mm × 5 mm) with MCXC141VFM, MCXC143VFM, and MCXC144VFM. All share the same mechanical footprint and signal mapping per NXP's MCX C14x family datasheet, enabling direct PCB reuse when upgrading Flash/SRAM capacity without layout changes.
What debug interface does MCXC142VFM provide?
MCXC142VFM provides Serial Wire Debug (SWD) via dedicated SWD_CLK and SWD_DIO pins, supporting full JTAG-equivalent debugging, flash programming, and real-time trace using the integrated Micro Trace Buffer. No external debug probe is required beyond standard ARM-compliant tools such as LPC-Link2 or CMSIS-DAP adapters.
Does MCXC142VFM include a hardware random number generator?
No, MCXC142VFM does not integrate a hardware TRNG or PRNG module. Its security features focus on flash protection, secure boot enforcement, and debug interface locking. Randomness-dependent functions (e.g., TLS nonce generation) must rely on software-based entropy sources or external ICs, as confirmed in the MCX C Series Fact Sheet MCXCFS REV 0 and NXP's MCXC142VFM-specific documentation.
MCXC142VFM 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:
- 64KB (64K 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:
MCXC142VFM FAQ
1.How can I place an order for MCXC142VFM through Aetrix?
Please submit a Request for Quotation (RFQ) for MCXC142VFM 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 MCXC142VFM reliable?
The price and inventory of MCXC142VFM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCXC142VFM is usually 5 days.
3.What payment methods are accepted for MCXC142VFM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCXC142VFM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCXC142VFM?
MCXC142VFM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCXC142VFM 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 MCXC142VFM?
For technical support, including MCXC142VFM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCXC142VFM requirements.
6.How does Aetrix verify that MCXC142VFM is sourced from the original manufacturer or authorized distributors?
All MCXC142VFM 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 MCXC142VFM meets industry standards.
7.What is the process for return or replacement of MCXC142VFM?
All MCXC142VFM units undergo pre-shipment inspection (PSI). If there is an issue with MCXC142VFM, 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 MCXC142VFM part is unused and in its original packaging.
Return procedure for MCXC142VFM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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