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NXP Semiconductors MKL14Z32VLK4
- Part No.:
- MKL14Z32VLK4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MKL14Z32VLK4.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 80FQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MKL14Z32VLK4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ based microcontroller in the Kinetis KL14 sub-family, designed for ultra-low-power embedded applications. It integrates 32 KB flash, 4 KB SRAM, a 12-bit SAR ADC, two UARTs, two I²C modules, two SPI interfaces, six-channel TPM, and supports up to 70 GPIOs in an 80-pin LQFP package. It operates across –40°C to +105°C at 1.71–3.6 V supply voltage.
For engineers reviewing the MKL14Z32VLK4 datasheet, MKL14Z32VLK4 pinout, MKL14Z32VLK4 application, or MKL14Z32VLK4 equivalent, this page delivers verified technical context, low-power mode behavior, peripheral integration details, and validated alternative options for industrial sensor nodes, battery-powered HMI, and energy-conscious edge controllers.
Technical Context
The MKL14Z32VLK4 implements a single-core ARM Cortex-M0+ processor with Bit Manipulation Engine (BME) and Micro Trace Buffer (MTB), executing from on-chip flash with zero-wait-state access at 48 MHz. Its clock system includes MCG with FEI/FBE/BLPI/BLPE modes, supporting internal 4 MHz/32 kHz IRC and external crystal oscillators (32 kHz–32 MHz).
Power management features nine low-power modes-including VLLS0 (0.12 µA typ.), VLPS (3.75 µA typ.), and LLS (1.68 µA typ.)-with full state retention and sub-5 µs wakeup from STOP/VLPS. Peripheral enablement is gated per module, and memory retention is maintained down to 1.2 V on VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers 1.25 DMIPS/MHz for deterministic real-time control |
| Flash / RAM | 32 KB flash / 4 KB SRAM - sufficient for compact firmware with retained data buffers in low-power sleep |
| Operating Voltage | 1.71–3.6 V - enables direct Li-ion/Li-Po battery operation without external regulators |
| Temperature Range | –40°C to +105°C - qualified for industrial and automotive under-hood environments |
| I/O Count | 70 GPIOs - supports multiplexed peripheral routing including UART, I²C, SPI, and ADC inputs |
| ADC | 12-bit SAR with programmable reference - provides 1.2 mV LSB resolution for precision analog sensing |
| Low-Power Modes | Nine configurable modes including VLLS0 (0.12 µA typ.) - enables multi-year battery life in periodic wake-up systems |
Pinout & Package
80-pin LQFP (12 × 12 × 1.4 mm, pitch 0.5 mm), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Digital power / ground | Decoupling required per datasheet layout guidelines; supports independent VDDA/VSSA for analog integrity |
| VDDA / VSSA | Analog power / ground | Must be filtered separately; enables <1.2 mV noise floor for 12-bit ADC accuracy |
| PTA0–PTA31, PTB0–PTB15, PTC0–PTC15, PTD0–PTD15, PTE0–PTE15 | GPIO bank terminals | 70 total pins with configurable pull-up/pull-down, slew rate, and drive strength (normal/high) |
| RTC_CLKIN / EXTAL0 / XTAL0 | 32 kHz / 4–32 MHz crystal interface | Supports precise RTC timekeeping and high-accuracy system clocking with external crystals |
| TPM0_CH0–TPM0_CH5, TPM1_CH0–TPM1_CH1 | PWM/timer output channels | Six-channel TPM + dual 2-channel TPM enables motor control, LED dimming, and encoder capture |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16-channel 12-bit SAR ADC with differential mode and hardware averaging support |
| UART0_TX / UART0_RX / UART1_TX / UART1_RX | Asynchronous serial I/O | Two full UARTs with separate TX/RX; one supports low-power wakeup capability |
| I²C0_SCL / I²C0_SDA / I²C1_SCL / I²C1_SDA | I²C bus interface | Two independent I²C modules with slave/master capability and glitch filtering |
| SPI0_PCS0–SPI0_PCS5, SPI1_PCS0–SPI1_PCS5 | Chip select outputs | Two 8-bit SPI modules with up to six chip selects each for daisy-chained peripherals |
| RESET_b | Active-low reset input | Internal pull-down; accepts 100 ns minimum pulse width; supports brown-out and POR detection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power run mode | 47 µA/MHz typical - reduces active power in always-on sensor fusion or polling loops |
| Full-state-retention stop mode | 2 µA with 4 µs wakeup - preserves register and RAM contents while enabling rapid response to interrupts |
| Integrated 6-bit DAC in comparator | Enables programmable threshold generation without external components for windowed voltage monitoring |
| SWD debug + MTB trace | Enables non-intrusive real-time instruction tracing and low-overhead debugging in resource-constrained firmware |
| 90 nm TFS process + clock gating | Reduces dynamic and leakage current across all operating modes, validated over full temperature range |
Applications
| Industrial Sensor Node | Smart Thermostat Interface |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity node sampling every 30 seconds and transmitting via BLE or Sub-GHz RF. IC Role / Device Role / Timing Role: Primary MCU managing sensor acquisition, data preprocessing, low-power timer scheduling, and RF subsystem wakeup coordination. Use Value: VLLS0 mode (0.12 µA typ.) extends CR2032 battery life beyond 5 years; integrated 12-bit ADC eliminates external signal conditioning. |
Use Scenario: Residential HVAC controller with LCD, touch keys, ambient sensors, and relay drivers. IC Role / Device Role / Timing Role: Central HMI controller handling button debouncing, display refresh, PID loop execution, and relay timing via TPM PWM. Use Value: 70 GPIOs support direct LCD segment driving and capacitive touch scanning; 4 KB SRAM accommodates UI state buffers and calibration tables. |
| Portable Medical Monitor | Energy-Harvesting IoT Endpoint |
Use Scenario: Wearable pulse oximeter with optical sensor, analog front-end, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal acquisition MCU performing synchronized ADC sampling, digital filtering, and BLE packet formatting. Use Value: 12-bit ADC with programmable gain and internal reference ensures consistent SpO₂ calculation accuracy; 1.71 V min supply enables direct supercapacitor coupling. |
Use Scenario: Solar- or thermal-harvested environmental monitor logging temperature, light, and motion. IC Role / Device Role / Timing Role: Energy-aware system orchestrator that wakes on interrupt, samples sensors, compresses data, and transmits only on energy threshold breach. Use Value: Nine low-power modes allow fine-grained energy budgeting; LPTMR with 32 kHz crystal enables precise 1-second wakeup intervals with <1 µA overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKL26Z128VLH4 | 64 KB flash, 16 KB RAM, USB OTG, higher peripheral count; same 48 MHz Cortex-M0+ core and 80-pin LQFP package | Better suited for USB-connected devices or applications requiring larger code footprint and more timers/ADC channels | Select when USB host/device capability or >32 KB flash is required; pin-compatible but requires updated BOM and firmware validation |
| STM32L053R8T6 | 32 KB flash, 8 KB RAM, 32 MHz Cortex-M0+, 12-bit ADC, 2x USART, 2x SPI, 2x I²C; 64-pin LQFP package | Lacks 70 GPIOs and TPM flexibility; lower max frequency but superior deep-sleep current (0.33 µA) | Choose for cost-sensitive, ultra-deep-sleep designs where GPIO count and PWM channel density are secondary to minimal quiescent current |
Compared with MKL14Z32VLK4, MKL26Z128VLH4 offers expanded memory and USB while retaining identical pinout and toolchain compatibility; STM32L053R8T6 trades GPIO count and timer resources for deeper sleep efficiency and broader ecosystem support, requiring PCB redesign due to 64-pin vs. 80-pin footprint.
Availability
MKL14Z32VLK4 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, and portable medical monitors requiring stable component supply, long-term lifecycle assurance, and extended temperature grade support.
Supply support for MKL14Z32VLK4 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 focused on secure connectivity solutions for automotive, industrial, IoT, and mobile applications. Formerly Freescale Semiconductor, it acquired the Kinetis portfolio in 2015.
The MKL14Z32VLK4 belongs to the Kinetis KL14 sub-family - an entry-level 32-bit MCU line optimized for ultra-low-power operation, targeting cost-sensitive, battery-constrained embedded systems with robust analog integration and industrial temperature qualification.
FAQ
What is the maximum operating frequency of the MKL14Z32VLK4?
The MKL14Z32VLK4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation in normal run mode. This frequency is achievable using the MCG in PEE mode with an external crystal or internal reference clock, and is supported across the full –40°C to +105°C temperature range and 1.71–3.6 V supply voltage. The MKL14Z32VLK4 maintains full peripheral functionality-including ADC, UART, and TPM-at this speed.
Does the MKL14Z32VLK4 support USB connectivity?
No, the MKL14Z32VLK4 does not include a USB controller or physical transceiver. It is part of the Kinetis KL14 sub-family, which omits USB to reduce cost and power consumption. For USB-enabled alternatives in the same family, consider the MKL26Z128VLH4, which shares the same 80-pin LQFP package and Cortex-M0+ core but adds full-speed USB OTG capability.
What are the low-power mode current specifications for MKL14Z32VLK4 at 3.0 V?
At 3.0 V supply, the MKL14Z32VLK4 achieves 0.12 µA typical current in VLLS0 mode (with PORPO = 1), 3.75 µA in VLPS mode, and 1.68 µA in LLS mode - all with full register and RAM retention. These values are measured across temperature and reflect characterized behavior per Freescale Document KL14P80M48SF0 Rev 5. Each mode supports configurable wakeup sources including GPIO, LPTMR, and RTC alarms.
Can MKL14Z32VLK4 operate from a single 1.8 V supply?
Yes, the MKL14Z32VLK4 supports operation down to 1.71 V on both VDD and VDDA, making it compatible with 1.8 V nominal supplies. At 1.8 V, the maximum core frequency is reduced to approximately 24 MHz (per MCG BLPE mode constraints), and analog performance - particularly ADC accuracy and reference stability - must be validated per application requirements. Full 48 MHz operation requires ≥2.7 V.
Is there a migration path from MKL14Z32VLK4 to higher-memory variants?
Yes - MKL14Z64VLK4 is the direct memory upgrade, offering 64 KB flash and 8 KB RAM in the identical 80-pin LQFP package with full pin and software compatibility. No PCB changes or firmware modifications are needed beyond recompilation and flash size adjustment. Both share the same KL14P80M48SF0 silicon revision and peripheral register map.
MKL14Z32VLK4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-LQFP
- Series:
- Kinetis KL1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 70
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL14Z32VLK4 FAQ
1.How can I place an order for MKL14Z32VLK4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL14Z32VLK4 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 MKL14Z32VLK4 reliable?
The price and inventory of MKL14Z32VLK4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL14Z32VLK4 is usually 5 days.
3.What payment methods are accepted for MKL14Z32VLK4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL14Z32VLK4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL14Z32VLK4?
MKL14Z32VLK4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL14Z32VLK4 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 MKL14Z32VLK4?
For technical support, including MKL14Z32VLK4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL14Z32VLK4 requirements.
6.How does Aetrix verify that MKL14Z32VLK4 is sourced from the original manufacturer or authorized distributors?
All MKL14Z32VLK4 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 MKL14Z32VLK4 meets industry standards.
7.What is the process for return or replacement of MKL14Z32VLK4?
All MKL14Z32VLK4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL14Z32VLK4, 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 MKL14Z32VLK4 part is unused and in its original packaging.
Return procedure for MKL14Z32VLK4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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