MKL27Z256VFT4 Description

The MKL27Z256VFT4 is an Ultra-Low-Power Microcontrollers (MCUs) based on Arm? Cortex?-M0+ Core designed for battery-powered applications that require a minimal amount of power. The product features an embedded ROM with a boot loader for flexible program upgrades and a USB FS 2.0 device without the need for an external crystal. ? Internal voltage and clock reference with high accuracy; ? FlexIO compatibility for any common or unique serial peripheral emulation ? Very low power run mode, which uses 54uA/MHz, and deep sleep mode, which uses 1.96uA (RAM and RTC are preserved).

MKL27Z256VFT4 Features

Core Processor

ARM? Cortex?-M0+ core up to 48 MHz

Memories

128/256 KB program flash memory

32 KB SRAM

16 KB ROM with built-in bootloader

32-byte backup register

System

4-channel asynchronous DMA controller

Watchdog

Low-leakage wakeup unit

Two-pin Serial Wire Debug (SWD) programming and debug interface

Micro Trace Buffer

Bit manipulation engine

Interrupt controller

Clocks

48MHz high accuracy (up to 0.5%) internal reference clock

8MHz/2MHz high accuracy (up to 3%) internal reference clock

1KHz reference clock active under all low-power modes (except VLLS0)

32–40KHz and 3–32MHz crystal oscillator

Operating Characteristics

Voltage range: 1.71 to 3.6 V

Flash write voltage range: 1.71 to 3.6 V

Temperature range: –40 to 105 °C

Peripherals

USB full-speed 2.0 device controller supporting the crystal-less operation

One UART module supporting ISO7816, operating up to 1.5 Mbit/s

Two low-power UART modules supporting asynchronous operation in low-power modes

Two I2C modules and I2C0 supporting up to 1Mbit/s

Two 16-bit SPI modules supporting up to 24 Mbit/s

One FlexIO module supporting emulation of additional UART, IrDA, SPI, I2C, I2S, PWM, and other serial modules, etc.

One serial audio interface I2S

One 16-bit 818 ksps ADC module with high accuracy internal voltage reference (Vref) and up to 16 channels

High-speed analog comparator containing a 6-bit DAC for programmable reference input

One 12-bit DAC

1.2 V internal voltage reference

Timers

One 6-channel Timer/PWM module

Two 2-channel Timer/PWM modules

One low-power timer

Periodic interrupt timer

Real-time clock

Security and Integrity

80-bit unique identification number per chip

Advanced flash security

I/O

Up to 50 general-purpose input/output pins (GPIO) and 6 high-drive pad

Low Power

Down to 54uA/MHz in very low power run mode

Down to 1.96uA in VLLS3 mode (RAM + RTC retained)

Six flexible static modes

MKL27Z256VFT4 Applications

• Used in development boards

• Hobby projects

• Drivers

• Industrial control systems

• SMPS and Power Regulation systems

• Analog signal measuring and manipulations

• Embedded systems like coffee machines, vending machine

• Display units