For best experience this site requires Javascript to be enabled. To enable on your browser, follow our accessibility instructions.

Click over video to play

The Kinetis^® K12 50 MHz family of baseline MCUs targets cost-sensitive applications requiring low power and processing efficiency.

Includes robust analog, communication, control and timing peripherals
Provides upgrade from mechanical to touch keypad, rotary and slider interfaces
Operates in all low-power modes with minimal current added
Supports multiple communication interfaces for efficient data exchange, industrial network bridging and audio system interfacing
Reduces overall system cost by eliminating the need for external voltage reference
Secures data transfer and storage
Shares the Kinetis portfolio's scalability and comprehensive development support

Product Details

11 low-power modes with power and clock gating for optimal peripheral activity and recovery times. 4 µs wake-up from Stop mode
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

128 KB-512 KB flash. Fast access, high reliability with 4-level security protection
Up to 64 KB FlexRAM
FlexMemory
- Up to 4 KB of user-segmentable byte write/erase EEPROM for data tables/system data
- EEPROM with over 10M cycles and flash with 100 µsec write time (brownouts without data loss or corruption)
- No user or system intervention to complete programming and erase functions and full operation down to 1.71 volts
- In addition, FlexNVM from 64 KB for extra program code, data or EEPROM backup

50 MHz Arm^{^®} Cortex^®-M4 core with DSP instruction set, single cycle MAC and single instruction multiple data (SIMD) extensions
Up to 16-channel DMA for peripheral and memory servicing with reduced CPU loading and faster system throughput0 MHz core
Cross bar switch enables concurrent multi-leader bus accesses, increasing bus bandwidth

Up to two FlexTimers with a total of 10 channels. Hardware dead-time insertion and quadrature decoding for motor control
Carrier modulator timer for infrared waveform generation in remote control applications
Four-channel 32-bit periodic interrupt timer provides time base for RTOS task scheduler or trigger source for ADC conversion and programmable delay block

Up to three UARTs. One UART supports RS232 with flow control, RS485, ISO7816 and IrDA. All other two UARTS support RS232 with flow control and RS485
One inter-IC Sound (I²S) serial interface for audio system interfacing
One DSPI and one I²C

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

Buy/Parametrics

‌ ‌ ‌	‌ ‌	‌ ‌	‌ ‌	‌ ‌	‌ ‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌

Quick reference to our design files types.

2 design files

Receive the full breakdown. See the product footprint and more in the eCad file.

Quick reference to our board types.

1-5 of 10 hardware offerings

Emulators, Probes, and Programmers
Universal Multilink Development InterfaceFeatured
Active

UMultilink
Evaluation and Development Boards
Kinetis K21 50 MHz MCU Tower System ModuleFeatured
Active

TWR-K21D50M
Emulators, Probes, and Programmers
MCU-Link Debug Probe
Active

MCU-LINK
Additional hardware available. View our featured partner solutions.
Emulators, Probes, and Programmers
Tracelink - Advance Trace Capture
Active

TRACELINK
Emulators, Probes, and Programmers
PEmicro Cyclone programmer
Active

CYCLONE
Emulators, Probes, and Programmers
PEmicro Cyclone FX programmer

CYCLONE-FX
Emulators, Probes, and Programmers
LPC-Link2
Active

OM13054
Emulators, Probes, and Programmers
Universal Multilink FX High-Speed Development Interface
Active

U-MULTILINK-FX
Evaluation and Development Boards
MPC560x Calibration, Debug and Interface Boards
Active

MPC560xBOARDS
Evaluation and Development Boards
MCU-LINK-MR Debug Probe with USB-C, Serial and Mobile Robotics Interfaces
Active

MCU-LINK-MR

5 hardware offerings