MK11DX256AVLK5 - 50MHz Cortex-M4 MCU, 256KB Flash | NXP
N.º de pieza: MK11DX256AVLK5 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $8.66 | $8,66 |
| 10 | $7.9 | $79,00 |
| 100 | $7.1 | $710,00 |
| 500 | $6.5 | $3.250,00 |
| 1.000 | $6 | $6.000,00 |
MK11DX256AVLK5 Descripción general
A microcontroller (MCU) is a single-chip computer that integrates a processor core, nonvolatile flash memory for program storage, SRAM for data, and a rich set of peripherals such as timers, serial interfaces (UART, SPI, I2C), and analog-to-digital converters. Within the system hierarchy, an MCU sits above discrete logic and below application processors, making it the default choice for embedded control where cost, power, and reliability matter more than raw throughput.
Key features of the MK11DX256AVLK5 include the 50 MHz Cortex-M4 core with DSP instructions and a hardware floating-point-capable instruction set for efficient signal processing, 256KB of on-chip flash for code storage, 64KB of SRAM for data buffers, and a security subsystem with tamper detection (DryIce) targeting applications where physical attack resistance is required. The device operates from 1.8V, 2.5V, or 3.3V supplies, giving designers supply-rail flexibility across industrial and portable systems.
Technically, the Kinetis K11 family belongs to NXP's Kinetis K-series baseline portfolio, optimized for cost-sensitive applications requiring low-power operation, security encryption, and processing efficiency. Multiple low-power modes allow the MCU to reduce standby consumption in battery-operated equipment, while the Cortex-M4 architecture supports real-time deterministic execution.
Typical applications include industrial automation controllers, secure embedded systems with anti-tamper requirements, consumer appliances, and motor-control or sensing nodes that leverage the Cortex-M4 DSP capability.
When designing with this device, verify supply-rail selection (1.8V/2.5V/3.3V) early, since it constrains peripheral voltage levels and IO interfacing, and budget flash headroom in the 256KB array for firmware growth.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para MK11DX256AVLK5 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MK11DX256AVLK5 (mismo factor de forma y huella) — difiere en Flash Memory, Package, Security Features, Mounting Type, Series.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MK21DX256AVLK5
✅ Sustitución directa✓ En stock
$11 / unidad
Ver hoja de datos →MK21DN512AVLK5
✅ Sustitución directa✓ En stock
$4.8 / unidad
Ver hoja de datos →MK11DX256VLK5
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MK11DX128AVLK5
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MK22DX256VLK5
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MK11DX256AVLK5 Valores máximos y características eléctricas
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-bit |
| Frecuencia de reloj máxima | 50 MHz |
| Flash Memory | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Tensión de alimentación | 1.8 V / 2.5 V / 3.3 V |
| Encapsulado | 80-LQFP (12x12 mm), FQFP |
| Number of Pins / Terminals | 80 |
| Tipo de montaje | Surface Mount (Gull Wing) |
| Package Shape | Square (QFP) |
| Series | Kinetis K11 (K1 Baseline) |
| Security Features | Tamper detection (DryIce), security encryption |
| Temperature Grade | Industrial |
| Packaging | Tray |
Guía de configuración de pines de MK11DX256AVLK5 square (qfp)
Configuración de pines para MK11DX256AVLK5 (encapsulado square (qfp)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para MK11DX256AVLK5.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MK11DX256AVLK5 es adecuado para 6 aplicacións: Industrial Automation Controllers, Secure Embedded Systems with Anti-Tamper, Motor Control and Digital Power, Consumer Appliance Control, Portable and Battery-Powered Devices, Networking and Communication Nodes.
Industrial Automation Controllers
The MK11DX256AVLK5 fits industrial automation nodes that need deterministic real-time control plus code headroom. Its 50 MHz ARM Cortex-M4 core with DSP instructions handles PID loops, modulation, and filtering without an external DSP, while 256KB flash and 64KB SRAM accommodate protocol stacks such as Modbus or CAN-based fieldbus layers. Operation from a 3.3V rail with industrial temperature grade simplifies integration into PLC I/O modules and sensor hubs. In a typical design the MCU reads analog channels via its on-chip ADC, executes control algorithms, and drives outputs through timers. Unlike simpler Cortex-M0 parts, the Cortex-M4's single-cycle MAC accelerates control math, reducing loop latency for tighter regulation performance.
Recomendado
Secure Embedded Systems with Anti-Tamper
The DryIce tamper-detection subsystem is the defining feature of the MK11DX256AVLK5, making it a strong fit for equipment that must resist physical inspection or key extraction: secure gateways, metering front ends, and payment-adjacent terminals. The tamper block monitors device integrity and can trigger protective responses to safeguard secrets held in SRAM or flash. Combined with 256KB of flash for cryptographic code and 64KB SRAM for key material and session buffers, the part supports AES-class encryption workloads under the Cortex-M4 at 50 MHz. Designers should route tamper-detect inputs away from noisy switching nets and verify that the A-grade tamper variant, not the non-A MK11DX256VLK5, is specified in security-critical builds.
Recomendado
Motor Control and Digital Power
The Cortex-M4 core in the MK11DX256AVLK5 provides DSP instructions and fast multiply-accumulate operations that suit field-oriented motor control and digital power conversion. At 50 MHz with 256KB flash, the part runs sensorless FOC algorithms for BLDC and PMSM motors while leaving flash margin for communication and diagnostics. The 80-pin LQFP offers enough general-purpose IO and timer channels for three-phase gate drive signaling, quadrature encoder feedback, and protective fault inputs. Supply flexibility (1.8V/2.5V/3.3V) allows clean separation between logic and gate-driver interface rails. For higher-power stages, pair the MCU with a dedicated digital signal controller or gate driver rather than switching the power stage directly from MCU pins.
Recomendado
Consumer Appliance Control
Cost-sensitive appliance boards - washing machines, cooktops, HVAC controllers - benefit from the MK11DX256AVLK5's balance of performance and integration. The Kinetis K1 baseline family is explicitly optimized for cost-sensitive applications per NXP, and the single-chip integration of flash, SRAM, ADC, timers, and serial interfaces (UART, SPI, I2C) reduces bill-of-materials count versus discrete solutions. 256KB flash holds user-interface code, display drivers, and connectivity-ready firmware, while 64KB SRAM buffers sensor data and UI state. The industrial temperature grade exceeds typical appliance ambient requirements, providing margin near heat sources such as motors and power supplies. The 12x12 mm 80-LQFP keeps assembly on standard SMT lines.
Recomendado
Portable and Battery-Powered Devices
The MK11DX256AVLK5's multiple low-power modes and 1.8V supply capability make it appropriate for battery-operated instruments, handheld meters, and portable data loggers. Running the core directly from a 1.8V rail reduces dynamic power versus 3.3V operation, and the Kinetis low-power mode hierarchy allows the MCU to sleep between sampling events, waking on timer or external interrupts. The 50 MHz Cortex-M4 delivers burst processing for FFT-based measurement or signal analysis, then returns to low-power standby - a duty-cycle profile common in portable instrumentation. With 256KB flash, full application firmware including UI and logging layers fits on-chip, eliminating external memory and its associated standby drain in compact designs.
Recomendado
Networking and Communication Nodes
The MK11DX256AVLK5 serves as a main controller in wired communication nodes such as RS-485 gateways, CAN bridges, and sensor aggregation points. Its 64KB SRAM comfortably buffers packet streams, while the 50 MHz Cortex-M4 runs protocol stacks - CANopen, Modbus RTU/TCP front-ends, or custom serial protocols - with deterministic latency. The 80-pin LQFP exposes multiple UART, SPI, and I2C instances needed to bridge heterogeneous field devices to a backbone network. Firmware updates, protocol tables, and logging fit within the 256KB flash array, with room to spare for OTA-style upgrade code. The DryIce tamper option adds value in network nodes that hold provisioning keys or access credentials.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MK11DX256AVLK5 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MK21DX256AVLK5 | MK21DN512AVLK5 | MK11DX256VLK5 | MK11DX128AVLK5 | MK22DX256VLK5 |
|---|---|---|---|---|---|---|
| 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 | 80-LQFP (12x12 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 256 KB | 256 KB | 512 KB | 256 KB | 128 KB | 256 KB |
Diferenciadores clave
- DryIce tamper detection included (frente a MK11DX256VLK5)
- Same footprint with USB option (frente a MK21DX256AVLK5)
- Cortex-M4 DSP capability at 50 MHz (frente a MKL26Z128VMC4)
Notas de diseño
The MK11DX256AVLK5 supports 1.8V, 2.5V, and 3.3V supplies. Select the lowest rail your peripherals allow to minimize dynamic power, especially in battery-powered designs. Decouple each supply pin pair with 100 nF ceramic capacitors placed within 2 mm of the pins, plus one bulk 4.7-10 uF capacitor near the device. If the board mixes 3.3V and 1.8V domains, verify IO level compatibility on every shared net before routing. Legacy Freescale-era Kinetis parts also require observing power-up ramp-rate limits; a slow-ramping supply can cause indeterminate boot state.
The A-grade DryIce tamper feature distinguishes MK11DX256AVLK5 from the non-A MK11DX256VLK5. If your product's threat model includes physical attacks, confirm the full ordering code on incoming reels - a non-A substitution in a secure product is a silent functional downgrade. Route tamper-detection inputs as short, guarded traces away from switching regulator nodes and crystal circuits, and consult NXP's Kinetis security application notes for tamper event response configuration before finalizing firmware.
The 80-LQFP (12x12 mm) package uses 0.5 mm pitch gull-wing leads. Use a standard 80-LQFP footprint with solder-mask-defined or non-solder-mask-defined pads per IPC-7351 practice, and place the crystal within a few millimeters of the OSC pins with guard ground ring to minimize jitter. Keep debug (SWD/JTAG) headers accessible even in production layouts - Kinetis flash programming and recovery depend on it. Exposed thermal behavior is modest at 50 MHz, but solid ground planes under the device improve signal integrity on high-speed timer and serial outputs.
Web sources show conflicting core descriptions for this part (one NXP snippet says Cortex-M0+, most say Cortex-M4). Verify the core type and RAM size against the official NXP datasheet revision before finalizing toolchain and linker settings - Keil MDK lists the MK11DX256AVLK5 as a supported device with the Cortex-M4 configuration. Also note this is a legacy Freescale-era part: confirm lifecycle status and long-term supply (Rochester/Flip legacy channels exist) before committing new production designs.
Información de cumplimiento
Compliance details were not stated in the provided web data. Temperature grade is listed as Industrial by distributor Partstack. Consult the official NXP product page for RoHS/REACH declarations.
