MK22DN512VLK5 - 50MHz Cortex-M4 MCU, 512KB Flash | NXP
MPN: MK22DN512VLK5 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.68 | $14.68 |
| 10 | $13.3 | $133.00 |
| 100 | $12.1 | $1,210.00 |
| 500 | $10.95 | $5,475.00 |
| 1,000 | $9.8 | $9,800.00 |
MK22DN512VLK5 Overview
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the complete controller of an embedded system. Within the product hierarchy, the K22DN512 sits under the Kinetis K series of ARM Cortex-M microcontrollers, which in turn belong to the broader 32-bit MCU and system-on-chip semiconductor family. MCUs like this one replace multi-chip solutions of processor, RAM, flash, and peripheral controllers with a single, low-power device.
Key features include a wide operating voltage range of 1.71 V to 3.6 V with flash write support across the same range, an ambient temperature range of -40C to +105C for industrial environments, and a rich peripheral suite covering analog, communication, timing, and control functions. The Cortex-M4 core with DSP instructions provides single-cycle MAC operations ideal for digital filtering and motor control mathematics.
Architecturally, the K22 family is optimized for cost-sensitive applications needing processing efficiency and mid-range memory density. The 512 KB flash and 64 KB SRAM configuration suits applications with moderate code footprints plus USB stacks and protocol buffers. Smart on-chip integration delivers significant bill-of-materials savings by consolidating external components.
Typical applications include industrial control and factory automation, medical devices and portable diagnostics, and consumer products requiring USB connectivity. The full-speed USB controller and mid-range memory density make it a natural fit for USB peripherals and battery-powered instruments.
A key design consideration is power budgeting: the 50 MHz core speed should be matched against low-power mode usage, since the K22 family provides multiple sleep and stop modes that dominate average current in battery designs. Verify the 1.71 V minimum supply against brown-out requirements.
This page synthesizes distributor pricing, pin-compatible same-family alternatives, and practical design notes not found in the manufacturer datasheet, with data verified as of 2026-10-18.
Drop-in alternatives for MK22DN512VLK5 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MK22DN512VLK5 (same form factor and footprint) — differing in USB, Package, SRAM, Flash Memory, Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MK22DX256VLK5
✅ Drop-In📋 Reference alternative (not in catalog)
MK21DN512AVLK5
✅ Drop-In✓ In Stock
$4.8 / Unit
View Datasheet →MK21DX256AVLK5
✅ Drop-In✓ In Stock
$11 / Unit
View Datasheet →MK12DN512VLK5
✅ Drop-In📋 Reference alternative (not in catalog)
MK22DN512VLK5 Maximum Ratings & Electrical Characteristics
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-bit |
| Maximum Clock Frequency | 50 MHz |
| Performance | 1.25 Dhrystone MIPS per MHz |
| Flash Memory | 512 KB (512K x 8) |
| SRAM | 64 KB |
| Operating Voltage Range | 1.71 V to 3.6 V |
| Flash Write Voltage Range | 1.71 V to 3.6 V |
| Ambient Temperature Range | -40C to +105C |
| USB | Full-Speed USB |
| DSP Instructions | Yes (Cortex-M4 with DSP) |
| Package | 80-LQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Product Family | Kinetis K22 (K22 Sub-Family) |
| Peripherals | Analog, communication, timing and control peripherals |
| Lifecycle Status | Active |
MK22DN512VLK5 80-lqfp (12x12 mm) Pin Configuration Guide
Pin configuration for MK22DN512VLK5 (80-lqfp (12x12 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MK22DN512VLK5.
Refer to the datasheet for full pin configuration.
Typical Applications
MK22DN512VLK5 is suitable for 6 applications: Industrial Control and Automation, USB Peripheral Devices, Medical Devices and Diagnostics, Portable and Battery-Powered Instruments, Consumer Electronics and IoT Nodes, Embedded Motor and Power Control.
Industrial Control and Automation
The MK22DN512VLK5 fits industrial control nodes because its -40C to +105C ambient range survives factory-floor thermal extremes and its 1.71 V to 3.6 V supply rides through regulated-rail droop. The 50 MHz Cortex-M4 with single-cycle DSP MACs executes PID loops, motor commutation math, and digital filters deterministically, while 512 KB flash holds protocol stacks and field-updatable firmware with headroom. The K22 peripheral suite supplies timers, communication interfaces, and analog blocks that replace discrete controller ICs, cutting BOM cost. Deploy it as a PLC I/O module processor, motor drive controller, or sensor-hub between field buses and higher-level SCADA networks, using its low-power modes for always-on monitoring duty.
Recommended
USB Peripheral Devices
With its integrated full-speed USB controller, the MK22DN512VLK5 is a natural single-chip solution for USB-connected peripherals such as data loggers, test instruments, and human-interface devices. The 512 KB flash accommodates the USB stack, class drivers, and application firmware simultaneously, and 64 KB SRAM buffers endpoint data and logging payloads. NXP positions the K22 50 MHz family around smart on-chip integration that delivers significant BOM savings, and USB is a headline integration point: no external USB interface chip is needed. Run the core at 50 MHz while the USB block handles 12 Mbps full-speed traffic, freeing CPU cycles for signal processing between transfers.
Recommended
Medical Devices and Diagnostics
Portable and benchtop medical devices benefit from the MK22DN512VLK5's combination of processing efficiency and low power: the Cortex-M4 DSP instructions accelerate bio-signal filtering (ECG, SpO2, glucose sensor conditioning) at 1.25 Dhrystone MIPS/MHz, so measurements complete quickly and the MCU returns to low-power modes, extending battery life. The -40C to +105C ambient range and robust supply tolerance support sterilization-adjacent and transport conditions. Full-speed USB enables direct connectivity to host PCs and charging docks without extra silicon. Use the 512 KB flash for waveform capture buffers, calibration tables, and upgradeable firmware in patient-attached monitors and handheld diagnostic instruments where certification-grade platform stability matters.
Recommended
Portable and Battery-Powered Instruments
The MK22DN512VLK5 suits battery-powered measurement instruments because the 50 MHz core performs burst processing rapidly and the K22 family provides multiple low-power modes that dominate average current draw between active periods. The 1.71 V to 3.6 V supply range allows direct operation from a single Li-ion cell through a simple LDO, and the wide flash write voltage range supports in-field data logging and firmware updates at any battery state. The 512 KB flash retains long logging sessions and lookup tables locally. Typical designs include handheld meters, environmental loggers, and wireless-capable data acquisition pods where USB doubles as the charging and data link.
Recommended
Consumer Electronics and IoT Nodes
Cost-sensitive consumer and IoT products adopt the MK22DN512VLK5 where mid-range memory density and processing efficiency lower total system cost. NXP explicitly targets the K22 50 MHz family at cost-sensitive applications, and on-chip integration of USB, analog, timing, and control peripherals eliminates external controller ICs for connected accessories, smart appliances, and sensor-rich nodes. The 512 KB flash supports over-the-air style field upgrades staged through USB or serial links, while 64 KB SRAM hosts lightweight protocol stacks. The 12x12 mm 80-LQFP layout is manufacturable on standard two- to four-layer boards, keeping assembly cost low for volume consumer production runs.
Recommended
Embedded Motor and Power Control
The Cortex-M4 DSP extension makes the MK22DN512VLK5 effective for digital power and motor control: single-cycle multiply-accumulate executes FOC (field-oriented control) transforms, PWM duty-update math, and current-loop filters within the control period at 50 MHz. K22-family timing peripherals generate complementary PWM with dead-time insertion, and the analog blocks sample phase currents for closed-loop control. The -40C to +105C range suits drive environments near power stages. With 512 KB flash, multiple motor profiles and communication firmware coexist on one chip, enabling configurable drives for pumps, fans, and small industrial actuators without a separate signal-processing device.
Recommended
Recommended Products Summary
Engineering reference data for MK22DN512VLK5 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MK22DX256VLK5 | MK21DN512AVLK5 | MK21DX256AVLK5 | MK12DN512VLK5 |
|---|---|---|---|---|---|
| Package | 80-LQFP (12x12 mm) | 80-LQFP (12x12 mm) - same | 80-LQFP (12x12 mm) - same | 80-LQFP (12x12 mm) - same | 80-LQFP (12x12 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Frequency | ARM Cortex-M4, 50 MHz | ARM Cortex-M4, 50 MHz | ARM Cortex-M4, 50 MHz | ARM Cortex-M4, 50 MHz | ARM Cortex-M4, 50 MHz |
| Flash Memory | 512 KB | 256 KB | 512 KB | 256 KB | 512 KB |
| Full-Speed USB | Yes | Yes | K21 feature set - verify | K21 feature set - verify | No (K12 family) |
| Operating Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| Lifecycle Status | Active | Active | Active | Active | Active |
Key Differentiators
- Maximum flash in the K22 VLK5 pin-compatible group (vs MK22DX256VLK5)
- K22 full-speed USB integration (vs MK12DN512VLK5)
- Cortex-M4 with DSP at 50 MHz (vs MK21DN512AVLK5)
Design Notes
Supply the MK22DN512VLK5 from a regulated 3.3 V rail within the 1.71 V to 3.6 V datasheet window, and confirm the rail stays above 1.71 V during brown-out events or the flash write voltage floor will be violated during in-application programming. Place 0.1 uF ceramic decoupling capacitors on each VDD pin pair close to the package, plus bulk 10 uF near the regulator. If USB is used, generate the 3.3 V from the USB VBUS with an LDO rated for at least 500 mA including peripheral loads.
Kinetis K22 pins are heavily multiplexed: before finalizing layout, walk every pin through the Signal Multiplexing table in the K22 Sub-Family datasheet and confirm the required ALT function exists on that physical pin in the 80-LQFP option - functions available on larger packages may be absent on the VLK5 pin count. Also confirm SWD/JTAG debug pins (SWDIO/SWCLK) are not consumed by application functions, or in-circuit debugging and mass erasure become impossible on assembled boards.
Estimated: at 50 MHz the K22 core draws on the order of tens of milliamps (consult the datasheet operating characteristics table for exact run-mode current); with roughly 3.3 V x 50 mA = 165 mW dissipation and an 80-LQFP theta_JA on a standard four-layer board, junction rise is only a few degrees Celsius above ambient, so no heatsinking is required. Reserve thermal attention for boards enclosed at +105C ambient - keep internal dissipation low and verify junction temperature against the datasheet absolute maximum.
Layout the 80-LQFP with short, direct traces from crystal pins to the external oscillator (load capacitors placed within a few millimeters) and route analog peripheral inputs away from USB D+/D- switching edges. Provide an exposed test pad per debug pin and a 10-pin SWD header footprint in production layouts even when unpopulated - it dramatically reduces rework cost during firmware bring-up. Flood ground on layer 2 and stitch to the ground plane near the USB connector for signal integrity.
Compliance Information
The NXP product page lists an Environmental/Quality section for MK22DN512VLK5, but specific RoHS/REACH/lead-free declarations were not present in the retrieved data. Consult the official NXP product page for current environmental compliance certificates.