My Inquiry
My Account
NXP Semiconductors MK21DN512AVMC5
- Part No.:
- MK21DN512AVMC5
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 121-LFBGA
- Datasheet:
-
MK21DN512AVMC5.pdf
- Description:
- IC MCU 32B 512KB FLASH 121MAPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:138
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MK21DN512AVMC5 from NXP (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extension, designed for embedded control in industrial and automotive applications. It operates at up to 50 MHz, integrates 512 KB of program flash memory, 64 KB RAM, and supports -40°C to 105°C ambient temperature range. Key features include USB OTG, 16-bit SAR ADC, hardware encryption (AES/SHA-256), and multiple low-power modes.
For engineers reviewing the MK21DN512AVMC5 datasheet, MK21DN512AVMC5 pinout, MK21DN512AVMC5 application, or MK21DN512AVMC5 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases, and confirmed alternative parts - all grounded in the K21 Sub-Family Data Sheet Rev. 4.1 (08/2013) and official NXP documentation.
Technical Context
The MK21DN512AVMC5 implements an ARM Cortex-M4 core with DSP instructions and no FPU, operating at up to 50 MHz with 1.25 Dhrystone MIPS/MHz performance. Its clock system includes dual crystal oscillators (3–32 MHz and 32 kHz), a multi-purpose clock generator, and MCG mode support (FEI, FBE, BLPE).
It integrates FlexMemory-capable flash architecture (512 KB program flash only, no FlexNVM), 64 KB SRAM, and peripheral sets including USB full-/low-speed OTG with on-chip transceiver, four UARTs, two I²C, two SPI, I²S, RTC, and eight-channel PWM timer - all compliant with industrial temperature and voltage requirements (1.71–3.6 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4 with DSP extension, no FPU - enables deterministic signal processing in motor control and sensor fusion without floating-point overhead. |
| Max Clock Frequency | 50 MHz - defines real-time response ceiling for time-critical peripherals like PWM and USB transaction scheduling. |
| Flash Memory | 512 KB program flash only (no FlexNVM) - supports large firmware images with bootloader, OTA update partitioning, and robust code storage. |
| RAM | 64 KB SRAM - sufficient for real-time task stacks, communication buffers (USB/Ethernet), and algorithm working memory. |
| Operating Voltage | 1.71 V to 3.6 V - allows direct interface with Li-ion battery systems (3.0–3.7 V), industrial 3.3 V rails, and wide-input DC-DC converters. |
| Temperature Range | -40°C to +105°C - qualified for under-hood automotive, industrial PLC, and outdoor edge-node deployments. |
| USB Interface | Full-/low-speed On-The-Go controller with integrated transceiver - eliminates external PHY, reduces BOM cost, and enables host/peripheral role switching in field devices. |
Pinout & Package
Package: 121-pin MAPBGA (8 mm × 8 mm, pitch 0.5 mm), marked as MC per K21 part numbering convention (PP = MC → 121 MAPBGA). RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground domains | Separate digital/analog supplies enable noise isolation for ADC and comparators; differential tolerance ±0.1 V ensures stable reference integrity. |
| EXTAL0 / XTAL0 | Main crystal oscillator input/output | Supports 3–32 MHz crystals - used for high-accuracy system clock generation and USB timing compliance. |
| EXTAL32K / XTAL32K | 32 kHz crystal oscillator input/output | Drives RTC and low-power wake-up timers; enables precise timekeeping during VLPS/VLLS sleep modes. |
| USB0_DP / USB0_DM | USB differential data pair | On-chip transceiver eliminates external PHY - simplifies layout, reduces ESD risk, and meets USB 2.0 full-speed electrical specs. |
| PTA0–PTA31, PTB0–PTB16, etc. | General-purpose I/O with multiplexing | Up to 100 GPIOs with configurable pull-ups/downs (22–50 kΩ), hysteresis, and 25 mA drive - suitable for industrial digital I/O, LED drivers, and sensor interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Encryption Engine | Accelerates AES-128/256, SHA-1/256, MD5, DES/3DES - enables secure boot, firmware signing, and TLS offload without CPU penalty. |
| FlexMemory Architecture | Not implemented in MK21DN512AVMC5 (N = program flash only) - distinguishes it from X-series variants with FlexNVM/FlexRAM for EEPROM emulation. |
| Low-Power Modes | Supports VLLS0–VLLS3, LLS, VLPS, STOP, WAIT, RUN - achieves sub-1 μA stop current (VLLS0 w/ POR disabled) for battery-powered endpoint longevity. |
| 16-bit SAR ADC | Single-ended/differential conversion, programmable sample time, hardware trigger support - delivers 12+ ENOB for precision analog sensing in motor control and power monitoring. |
| DMA Controller | 16-channel, 63-source capable - enables zero-CPU-overhead data movement between ADC, UART, SPI, and memory for deterministic real-time streaming. |
Applications
| Industrial Motor Control | Automotive Body Control Module |
|---|---|
Use Scenario: Closed-loop PMSM/BLDC motor drive with field-oriented control (FOC) in HVAC blowers or pump systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM waveform generation (8-channel motor timer), ADC sampling synchronization, and CAN/UART diagnostics. Use Value: 50 MHz Cortex-M4 with DSP delivers >100 kHz current loop update rates; hardware CRC and encryption ensure firmware integrity in safety-critical motion systems. | Use Scenario: Centralized lighting, window lift, door lock, and seat position control in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Main MCU managing LIN/CAN communication, GPIO-driven relays/LEDs, ADC-based potentiometer feedback, and watchdog-monitored power sequencing. Use Value: -40°C to 105°C rating and 1.71–3.6 V operation tolerate automotive battery transients; USB OTG enables in-vehicle service programming and diagnostics. |
| Smart Grid Endpoint Meter | Medical Portable Diagnostic Device |
Use Scenario: Two-way AMI meter with pulse counting, tamper detection, and RF module interfacing via UART/SPI. IC Role / Device Role / Timing Role: Secure data acquisition (ADC, GPIO), cryptographic signing (AES/SHA-256), RTC timestamping, and low-power wake-up for scheduled reporting. Use Value: Hardware random number generator and tamper detect support meet ANSI C12.22 and IEC 62056 security mandates; VLLS0 mode extends battery life to >10 years. | Use Scenario: Handheld ECG/SpO₂ monitor requiring analog front-end precision, USB HID connectivity, and long battery runtime. IC Role / Device Role / Timing Role: Signal conditioning (16-bit ADC, analog comparators), real-time waveform analysis, USB device enumeration, and low-power sleep between measurements. Use Value: 16-bit SAR ADC with programmable gain and 6-bit DAC in CMP enables calibrated analog front-end trimming; 64 KB RAM buffers multi-lead ECG waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK22FN512VLH12 | Same K2x family, Cortex-M4F (FPU enabled), 120 MHz max, 512 KB flash, 128 LQFP package | Higher compute throughput for floating-point math (e.g., FFT-based filtering); larger footprint and higher power consumption | Select when FPU-dependent algorithms or >50 MHz timing margins are required; not drop-in due to pin count and package mismatch. |
| KE1xF512VLH16 | Kinetis E-series, Cortex-M0+, 16 MHz max, 512 KB flash, 128 LQFP, optimized for ultra-low-power and analog integration | Lower performance but superior active/sleep current efficiency; lacks USB OTG and DSP instructions | Prefer for battery-only devices where 50 MHz is unnecessary and sub-μA sleep dominates design priority. |
Compared with MK22FN512VLH12, MK21DN512AVMC5 trades FPU and speed for smaller MAPBGA footprint and lower dynamic power; versus KE1xF512VLH16, it delivers 3× higher compute density and USB host capability at the cost of ~2× higher active current - making MK21DN512AVMC5 optimal for space-constrained, mixed-signal industrial nodes needing balanced performance and integration.
Availability
MK21DN512AVMC5 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart grid metering, and portable medical diagnostics requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MK21DN512AVMC5 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, IoT, and mobile applications.
The MK21DN512AVMC5 belongs to the Kinetis K21 microcontroller family, engineered for cost-sensitive, high-integration embedded systems demanding robust security, analog precision, and flexible low-power operation in harsh environments.
FAQ
What is the maximum operating frequency of the MK21DN512AVMC5?
The MK21DN512AVMC5 operates at a maximum core/system clock frequency of 50 MHz, as specified in the K21 Sub-Family Data Sheet Rev. 4.1. This frequency is achievable across the full -40°C to 105°C temperature range and 1.71–3.6 V supply voltage, with the MCG configured in FEI or FBE mode. The MK21DN512AVMC5 does not support higher frequencies like 72 MHz or 120 MHz found in other Kinetis variants.
Does the MK21DN512AVMC5 include a hardware floating-point unit (FPU)?
No, the MK21DN512AVMC5 implements the ARM Cortex-M4 core with DSP extensions but without a hardware FPU. Its part number suffix 'D' (per K21 naming convention) denotes Cortex-M4 with DSP only, distinguishing it from 'F' variants like MK22FN512VLH12 that include single-precision FPU. Floating-point operations on MK21DN512AVMC5 require software emulation or CMSIS-DSP library optimization.
What type of flash memory configuration does the MK21DN512AVMC5 support?
The MK21DN512AVMC5 uses program flash only (indicated by 'N' in the part number), providing 512 KB of main flash memory with no FlexNVM or FlexRAM. Unlike 'X' variants (e.g., MK21DX256VLK5), it cannot emulate EEPROM or provide separate data flash - all non-volatile storage is allocated to executable code and constants, requiring external EEPROM or FRAM for persistent data logging.
Which package and pin count does the MK21DN512AVMC5 use?
The MK21DN512AVMC5 is packaged in a 121-ball MAPBGA (8 mm × 8 mm, 0.5 mm pitch), identified by the 'MC' package code in its part number. It has 121 I/O balls, including power, ground, and functional signals - not 80 or 144 pins. This compact package supports high-density PCB layouts while maintaining thermal performance for industrial ambient conditions.
Is USB On-The-Go functionality supported on the MK21DN512AVMC5?
Yes, the MK21DN512AVMC5 integrates a full-/low-speed USB On-The-Go controller with an on-chip transceiver, supporting both host and device roles without external PHY components. USB0_DP and USB0_DM pins comply with USB 2.0 electrical specifications, and the controller supports standard device classes (CDC, HID, MSC) and OTG session request protocol (SRP) - confirmed in Section 6.8.1 of the K21 Sub-Family Data Sheet.
MK21DN512AVMC5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 121-LFBGA
- Series:
- Kinetis K20
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART, USB, USB OTG
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 64
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 20x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK21DN512AVMC5 FAQ
1.How can I place an order for MK21DN512AVMC5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK21DN512AVMC5 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MK21DN512AVMC5 reliable?
The price and inventory of MK21DN512AVMC5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK21DN512AVMC5 is usually 5 days.
3.What payment methods are accepted for MK21DN512AVMC5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK21DN512AVMC5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK21DN512AVMC5?
MK21DN512AVMC5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK21DN512AVMC5 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MK21DN512AVMC5?
For technical support, including MK21DN512AVMC5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK21DN512AVMC5 requirements.
6.How does Aetrix verify that MK21DN512AVMC5 is sourced from the original manufacturer or authorized distributors?
All MK21DN512AVMC5 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MK21DN512AVMC5 meets industry standards.
7.What is the process for return or replacement of MK21DN512AVMC5?
All MK21DN512AVMC5 units undergo pre-shipment inspection (PSI). If there is an issue with MK21DN512AVMC5, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MK21DN512AVMC5 part is unused and in its original packaging.
Return procedure for MK21DN512AVMC5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MK21DN512AVMC5 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
