Overview
The MK21DN512AVLK5 is a microcontroller from NXP USA Inc., part of the Kinetis K21D sub-family. This device is optimized for cost-sensitive applications that require low power consumption, USB connectivity, processing efficiency, and extensive tamper protection. It is particularly suited for applications such as Electronic Point of Sales (EPOS) and other secure transactions. The microcontroller is based on a 50 MHz ARM® Cortex®-M4 core with DSP instructions, delivering high performance and efficiency.
Key Specifications
| Specification | Description | Value |
|---|---|---|
| Core | ARM® Cortex®-M4 with DSP instructions | Up to 50 MHz |
| Flash Memory | Program flash | Up to 512 KB |
| SRAM | Static RAM | Up to 64 KB |
| FlexMemory | FlexNVM and FlexRAM | 64 KB FlexNVM, 4 KB FlexRAM |
| Power Consumption | Run power consumption | Down to 189 μA/MHz |
| Static power consumption | Down to 3.1 μA with full state retention | |
| Voltage Range | Supply voltage | 1.71 to 3.6 V |
| Temperature Range | Ambient temperature | –40 to 105°C |
| USB | USB LS/FS OTG 2.0 | With embedded 3.3 V, 120 mA LDO voltage regulator |
| Security | Tamper detection and secure storage | Hardware CRC, hardware encryption (DES, 3DES, AES, MD5, SHA-1, SHA-256) |
Key Features
- DryIce Tamper Detection with active/passive pin, temperature, clock, and supply voltage monitoring.
- Multiple low-power modes, including a static mode down to 359 nA.
- 16-channel DMA controller and external watchdog monitor.
- Hardware encryption supporting various algorithms (DES, 3DES, AES, MD5, SHA-1, SHA-256).
- 128-bit unique identification (ID) number per chip.
- Rich suite of analog, communication, timing, and control peripherals.
- USB full-/low-speed On-the-Go controller and USB Device Charger detect (USBDCD).
- Two SPI modules, two I2C modules, four UART modules, and an I2S module.
- 8-channel motor control/general purpose/PWM timers and real-time clock.
Applications
The MK21DN512AVLK5 is ideal for various applications that require high security, low power consumption, and robust peripheral support. These include:
- Electronic Point of Sales (EPOS) and other secure transaction systems.
- Industrial control systems requiring extensive peripheral interfaces.
- Medical devices that need secure data processing and low power consumption.
- Automotive systems, especially those requiring tamper detection and secure storage.
- IoT devices that need efficient processing and secure communication.
Q & A
- What is the core frequency of the MK21DN512AVLK5 microcontroller?
The core frequency of the MK21DN512AVLK5 is up to 50 MHz. - How much flash memory does the MK21DN512AVLK5 have?
The MK21DN512AVLK5 has up to 512 KB of program flash memory. - What are the power consumption characteristics of the MK21DN512AVLK5?
The MK21DN512AVLK5 has a run power consumption down to 189 μA/MHz and a static power consumption down to 3.1 μA with full state retention. - Does the MK21DN512AVLK5 support USB connectivity?
Yes, it supports USB full-/low-speed On-the-Go (OTG) 2.0 with an embedded 3.3 V, 120 mA LDO voltage regulator. - What security features does the MK21DN512AVLK5 offer?
The MK21DN512AVLK5 offers hardware encryption, tamper detection, secure storage, and a hardware random-number generator. - What is the temperature range for the MK21DN512AVLK5?
The ambient temperature range for the MK21DN512AVLK5 is –40 to 105°C. - Does the MK21DN512AVLK5 have any unique identification features?
Yes, it has a 128-bit unique identification (ID) number per chip. - What types of communication interfaces are available on the MK21DN512AVLK5?
The MK21DN512AVLK5 includes USB, SPI, I2C, UART, and I2S modules. - What kind of timers does the MK21DN512AVLK5 support?
The MK21DN512AVLK5 supports 8-channel motor control/general purpose/PWM timers, 2-channel general purpose timers, 32-bit PITs, and a 16-bit low-power timer. - Is the MK21DN512AVLK5 suitable for industrial control systems?
Yes, it is suitable due to its extensive peripheral interfaces and low power consumption.
