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NXP USA Inc. MK22DX128VLK5 — Microcontrollers & Processors (MCU / MPU / DSP)
NXP USA Inc.

NXP MK22DX128VLK5 Kinetis K20 ARM Cortex-M4 MCU, 50 MHz

MPNMK22DX128VLK5
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NXP Kinetis K20 series, MK22DX128VLK5, ARM Cortex-M4 single-core at 50 MHz, 128 KB Flash, 32 KB SRAM, 4 KB EEPROM, 20-ch 16-bit ADC, 12-bit DAC, USB OTG, 56 I/O, 80-LQFP, -40 to 105°C.

$7.0076Ref. price · indicative, final on quote
MK22DX128VLK5 datasheet
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Specifications

MK22DX128VLK5 Technical Specifications
ParameterValue
SeriesKinetis K20
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C ~ 105°C (TA)
Speed50MHz
PackageTray
RAM size32K x 8
Core size32-Bit Single-Core
EEPROM size4K x 8
PeripheralsDMA, I²S, LVD, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART, USB, USB OTG
Number of i (O)56
Core processorARM® Cortex®-M4
Case80-LQFP
Data convertersA/D 20x16b; D/A 1x12b
Program memory size128KB (128K x 8)

Product details

The NXP MK22DX128VLK5 is a 32-bit ARM Cortex-M4 MCU clocked at 50 MHz with 128 KB Flash, 32 KB SRAM, and 4 KB EEPROM emulated in flash. It carries a 20-channel 16-bit ADC and a 12-bit DAC, plus USB OTG connectivity, in an 80-LQFP package. The industrial temperature range of -40 to 105 °C suits motor-drive control, factory-automation nodes, and outdoor telecom gear where the board sees thermal cycling.

Memory map and field-reprogrammability

128 KB Flash fits a FreeRTOS image plus a modest application stack. The 4 KB EEPROM emulation uses a dedicated flash block with wear-leveling — useful for storing calibration constants or configuration parameters without an external EEPROM. Both Flash and EEPROM are programmable in-system via the USB or UART bootloader, so firmware updates in the field are straightforward.

Frequently asked questions

What is the closest pin-compatible alternative to MK22DX128VLK5?

The MK22DX256VLK5 is a pin-compatible drop-in with 256 KB Flash instead of 128 KB, same 80-LQFP package, same peripheral set. The order code changes but the footprint and pinout match.

What is MK22DX128VLK5's listed speed?

The core runs at 50 MHz, which is the maximum clock for this part. That delivers roughly 125 DMIPS with the Cortex-M4 DSP extensions.