MKS20FN256VFT12

Kinetis S 32Bit MCU, ARM Cortex-M4 core, 256KB Flash, 120MHz, CAN, USB, 48QFN

Overview

The KS22 MCU is based on the ARM® Cortex®-M4 core with 120MHz MCUs with FPU, offering full-speed USB 2.0 OTG, in addition to other features like USB crystal-less functionality. Devices have 128 KB and 256 KB of flash, 64 KB SRAM as well as LQFP and QFN packages. These devices offer various levels of integration, with a rich suite of analog, communication, timing and control peripherals.

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## Features

### Ultra-Low-Power

* 10 low-power modes with power and clock gating for optimal peripheral activity and recovery times

* Full memory and analog operation down to 1.71 volts for extended battery life

* Low-leakage wake-up unit with up to eight internal modules and 16 pins as wake-up sources in low-leakage stop LLS/very low-leakage stop VLLS modes

* Low-power timer for continual system operation in reduced power state

### Flash, SRAM and FlexMemory

* 128 KB-256 KB Flash. Fast access, high reliability with four-level security protection

* 64 KB SRAM

### Performance

* ARM Cortex-M4 core + DSP. 120 MHz, single-cycle MAC, single instruction multiple data SIMD extensions, single precision floating point unit

* Up to 16-channel DMA for peripheral and memory servicing with reduced CPU loading and faster system throughput

* Cross bar switch enables concurrent multi-master bus accesses, increasing bus bandwidth

### Mixed-Signal Capability

* 16-bit analog-to-digital converters ADCs with configurable resolution. Single or differential output mode operation for improved noise rejection. 500 ns conversion time achievable with programmable delay block triggering

* 12-bit digital-to-analog converters DACs for analog waveform generation for audio applications

* high-speed comparators providing fast and accurate motor over-current protection by driving PWMs to a safe state

### Timing and Control

* Up tp 3 PWM and 1 TMR, can be operated in low-power mode

* Four-channel 32-bit periodic interrupt timer provides time base for RTOS task scheduler or trigger source for ADC conversion and programmable delay block

### Human-Machine Intergace HMI

* Up to 66 controllable GPIO with pin interrupt support

### Connectivity and Communications

* USB 2.0 On-The-Go full-speed with USB crystal-less functionality

* 1x LPUART that can be operated in low-power mode, 3x UART that support IrDA, one of them support ISO7816 smart card. Support different data side, format, and send/receive settings, compatible with multiple industry communication protocols

* 2x Inter-IC Sound I2S serial interface for audio system interfacing

* 2x CAN module for industrial network bridging

* 2x SPI

* 2x LPI2C, can be operated in low-power mode

* 1x FlexIO module that can be configured as different interface e.g. UART/SPI/I2C/I2S, support operating in low-power mode

### Reliability, Safety and Security

* Cyclic redundancy check engine validates memory contents and communication data, increasing system reliability

* Independent-clocked COP guards against clock skew or code runaway for fail-safe applications such as the IEC 60730 safety standard for household appliances

* External watchdog monitor drives output pin to safe state external components if watchdog event occurs