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MKL27Z256VFT4

MKL27Z256VFT4

NXP USA Inc.
ARM® Cortex®-M0+ Kinetis KL2 Microcontroller IC 32-Bit 48MHz 256KB (256K x 8) FLASH 48-QFN (7x7)
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Overview

The MKL27Z256VFT4 is an ultra-low-power 32-bit microcontroller from the Kinetis KL2 series, featuring an ARM Cortex-M0+ core running up to 48MHz. It integrates 256KB of flash memory, 32KB of SRAM, and a full-speed USB 2.0 controller with a crystal-less design option to reduce system cost and board space. This MCU is optimized for battery-operated applications requiring efficient processing and peripheral integration in a compact 48-QFN package.

Why Choose This Part

The part offers a significant power-to-performance ratio with its Cortex-M0+ core and advanced power management reaching as low as 1.96uA in sleep modes. It simplifies hardware design by providing a crystal-less USB implementation and a wide operating voltage range of 1.71V to 3.6V. The inclusion of a Bit Manipulation Engine (BME) and a 16-channel 16-bit ADC provides high-end peripheral capabilities in a low-cost, low-power envelope.

Applications

USB Peripheral Devices
Ideal for crystal-less USB HID devices, serial-to-USB bridges, and portable computer peripherals using the integrated full-speed USB controller.
Battery-Powered Wearables
Utilizes very low power run modes (54uA/MHz) and deep sleep modes (1.96uA) to extend battery life in fitness trackers and smart watches.
Smart Home Sensors
Suitable for wireless sensor nodes and security system components that require low standby current and occasional high-speed data processing.
Portable Medical Devices
Integrates a 16-bit ADC and 12-bit DAC for precise analog interfacing in handheld diagnostic equipment.

Key Specifications

Speed 48MHz
RAM Size 32K x 8
Core Size 32-Bit
Peripherals DMA, I2S, LVD, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 36
Core Processor ARM Cortex-M0+
Package / Case 48-UFQFN Exposed Pad
Data Converters A/D 16x16b; D/A 1x12b
Oscillator Type Internal
Program Memory Size 256KB (256K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 105degC (TA)
Supplier Device Package 48-QFN (7x7)
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V

Getting Started

Engineers can begin development using the NXP FRDM-KL27Z Freedom development board, which includes an onboard debugger. Software development is supported by MCUXpresso SDK, IDE, and configuration tools, as well as third-party ecosystems like IAR Embedded Workbench and Keil MDK. The Micro Trace Buffer (MTB) feature allows for non-intrusive instruction trace via the Serial Wire Debug (SWD) interface.

Also Consider

STM32L072CZT6 STMicroelectronics - Offers similar low-power ARM Cortex-M0+ performance with 192KB Flash and crystal-less USB support.
ATSAMD21G18A-MFT MCHPMicrochip Technology - A popular alternative with 256KB Flash and a slightly higher maximum clock speed of 48MHz with extensive community support.