NXP Semiconductors MKL14Z64VLK4R

Overview

MKL14Z64VLK4R from NXP (formerly Freescale) is an ultra-low-power 32-bit ARM Cortex-M0+ microcontroller designed for cost-sensitive, battery-powered embedded systems. It delivers 48 MHz CPU performance, 64 KB flash, 8 KB SRAM, and operates across –40 °C to 105 °C at 1.71–3.6 V. Key peripherals include a 12-bit 16-channel SAR ADC, one high-speed analog comparator, two UARTs (one low-power), two I²C, two SPI, four-channel DMA, and programmable timers - enabling use in smart sensors and portable medical devices.

For engineers reviewing the MKL14Z64VLK4R datasheet, MKL14Z64VLK4R pinout, MKL14Z64VLK4R application, or MKL14Z64VLK4R equivalent, this page provides verified technical context, package mapping, validated alternatives, and design-meaningful specifications - all confirmed for the exact MKL14Z64VLK4R variant in 80-pin LQFP (12 mm × 12 mm) with 48 MHz operation, 64 KB flash, and industrial temperature range.

Technical Context

The MKL14Z64VLK4R implements an ARM Cortex-M0+ core with 2-stage pipeline and single-cycle I/O access, enabling fast interrupt response and efficient bit manipulation via integrated Bit Manipulation Engine (BME). Its clock system uses a Frequency-Locked Loop (FLL) with internal/external reference support, delivering stable 48 MHz core and 24 MHz bus clocks.

Power management includes 10 configurable low-power modes (e.g., VLPS, LLS, VLLS), with peripherals like UART, SPI, I²C, ADC, and LPTMR operable without waking the CPU. The analog subsystem features a 12-bit SAR ADC with up to 16 single-ended channels, hardware averaging, temperature sensor, and a dedicated high-speed comparator with 6-bit DAC reference - all functional down to 1.71 V.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm), RoHS-compliant, moisture sensitivity level 3 (MSL3), standard JEDEC outline.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKL14Z64VLK4R, MKL14Z64VFT4R trades I/O and analog resources for compactness, while MKL15Z64VLK4R extends analog capability and adds DAC/TSI - both retain identical 80-pin LQFP footprint and core architecture, enabling hardware reuse where peripheral requirements align.

Availability

MKL14Z64VLK4R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial remote I/O modules, and energy harvesting controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MKL14Z64VLK4R 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, and IoT applications, with deep expertise in low-power microcontrollers and mixed-signal integration.

The MKL14Z64VLK4R belongs to NXP's Kinetis L series - a portfolio of ultra-low-power ARM Cortex-M0+ MCUs designed specifically for cost-sensitive, battery-operated embedded systems demanding high analog integration and scalable memory/peripherals.

FAQ

What is the maximum operating frequency and voltage range for MKL14Z64VLK4R?

The MKL14Z64VLK4R operates at a maximum CPU frequency of 48 MHz across a supply voltage range of 1.71 V to 3.6 V. Flash programming remains fully functional down to 1.71 V, and the device is rated for ambient temperatures from –40 °C to 105 °C - making MKL14Z64VLK4R suitable for industrial and automotive under-hood applications without external voltage scaling.

Does MKL14Z64VLK4R support USB connectivity?

No, MKL14Z64VLK4R does not include a USB OTG controller or on-chip transceiver. This capability is reserved for KL15-family variants (e.g., MKL15Z64VLK4R) and higher-tier Kinetis families. MKL14Z64VLK4R relies on UART, I²C, and SPI for host and peripheral communication - a deliberate trade-off to reduce silicon cost and power consumption.

How many ADC channels and what resolution does MKL14Z64VLK4R provide?

MKL14Z64VLK4R integrates a single 12-bit successive approximation register (SAR) ADC with up to 16 single-ended input channels. It supports hardware averaging across up to 32 samples, programmable sample time, temperature sensor input, and asynchronous clocking for low-noise acquisition - delivering effective resolution beyond nominal 12 bits in noise-sensitive applications.

Is MKL14Z64VLK4R pin-compatible with other Kinetis L-series MCUs?

Yes, MKL14Z64VLK4R is pin-compatible with all other KL14 and KL15 devices in the same 80-pin LQFP (LK) package, including MKL14Z32VLK4R and MKL15Z64VLK4R. Pin mappings for GPIO, ADC, UART, I²C, SPI, and power remain identical - enabling hardware reuse and migration paths within the Kinetis L family without PCB redesign.

What low-power modes are supported by MKL14Z64VLK4R?

MKL14Z64VLK4R supports 10 distinct low-power modes, including Very-Low-Power Stop (VLPS), Low-Leakage Stop (LLS), and Very-Low-Leakage Stop (VLLS0–VLLS3). Peripherals such as UART, SPI, I²C, ADC, and LPTMR can operate autonomously in VLPS/LLS modes, and wake-up is supported via GPIO, RTC alarm, or comparator output - enabling sub-µA system-level standby current.