MK21DN512AVLK5 vs MK21DX256AVLK5 Comparison
Detailed side-by-side comparison of MK21DN512AVLK5 by NXP Semiconductors and MK21DX256AVLK5 by NXP Semiconductors. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | MK21DN512AVLK5 | MK21DX256AVLK5 |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.80 | $11.00 |
| Core Processor | ARM Cortex-M4 | — |
| Core Size | 32-Bit | 32-bit |
| Maximum Clock Frequency | 50 MHz | 50 MHz |
| Flash Memory | 512 KB (512K x 8) | 256 KB |
| SRAM | 64 KB | 64 KB |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V |
| USB | Full-Speed USB 2.0 device/OTG controller | Full-Speed USB |
| Security Features | Hardware encryption, anti-tamper detection (DryIce) | Hardware encryption and tamper detection (DryIce) |
| Peripherals | ADC, DAC, PWM, POR, WDT, DMA, CAN, UART, SPI, I2C | — |
| Number of I/O | [DATA_NEEDED: number of GPIO] | — |
| Operating Temperature | -40C to +105C (AEC-Q100 grade, per Arrow data) | — |
| Package | 80-LQFP (12x12 mm) | 80-LQFP (12x12 mm), FQFP square, gull-wing terminals |
| Mounting Type | Surface Mount | Surface Mount |
| Qualification | Automotive AEC-Q100 (per Arrow product listing) | — |
| Packaging | Tray | Tray |
| RoHS Status | [DATA_NEEDED: RoHS status] | — |
| Product Family | Kinetis K21 (K21D sub-family) | — |
| Core | — | ARM Cortex-M4 |
| Number of Pins / Terminals | — | 80 |
| Series | — | Kinetis K2x (K2 USB Series, K Family) |
| Temperature Grade | — | Industrial |
| Program Memory Type | — | FLASH |
| RISC Architecture | — | Yes |