MK21DX128VMC5 vs MK21DX256VMC5 Comparison
Detailed side-by-side comparison of MK21DX128VMC5 by NXP Semiconductors and MK21DX256VMC5 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 | MK21DX128VMC5 | MK21DX256VMC5 |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Unknown |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.75 | $5.53 |
| Core Processor | ARM Cortex-M4 | — |
| Core Size | 32-Bit | — |
| Core Count | 1 (Single-Core) | — |
| Maximum Clock Frequency | 50 MHz | — |
| Flash Memory | 128 KB (128K x 8) | 256 KB |
| Product Family | Kinetis K21 | Kinetis K21 sub-family |
| Package | 121-MAPBGA (8x8 mm) | 121-pin MAPBGA (8x8) |
| Supply Voltage | 1.8V / 2.5V / 3.3V | — |
| USB | USB device | — |
| Security | DryIce tamper detection | — |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging Type | Tray | — |
| DSP Instructions | Yes (Cortex-M4 hardware MAC) | — |
| Data Bus Width | 32 bit | — |
| Manufacturer Status | Original manufacturer new (distributed by Rochester Electronics as authorized aftermarket) | — |
| SRAM | [DATA_NEEDED: SRAM size] | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Number of I/O | [DATA_NEEDED: GPIO count] | — |
| Processor Architecture | — | 32-bit ARM Cortex-M4 |
| Maximum CPU Frequency | — | 50 MHz |
| Flash Organization | — | 256K x 8 bit |
| Integrated Connectivity | — | USB |
| Alternate Package Description | — | 121-LFBGA |
| RAM | — | [DATA_NEEDED: RAM size] |
| Operating Voltage | — | [DATA_NEEDED: operating voltage range] |
| GPIO Count | — | [DATA_NEEDED: GPIO count] |
| USB Specification | — | [DATA_NEEDED: USB version and supported operating modes] |
| Clock Sources | — | [DATA_NEEDED: internal and external clock specifications] |
| ADC | — | [DATA_NEEDED: ADC resolution, channels, and input range] |
| UART and Serial Peripherals | — | [DATA_NEEDED: UART, SPI, and I2C peripheral details] |
| RoHS | — | [DATA_NEEDED: RoHS status] |
| REACH | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 | — | [DATA_NEEDED: automotive qualification status] |
| Packaging | — | [DATA_NEEDED: tray, tape-and-reel, or other shipping configuration] |