NXP Semiconductors MK11DX128AVLK5

Overview

MK11DX128AVLK5 from NXP Semiconductors (formerly Freescale) is a 50 MHz ARM Cortex-M4 microcontroller with DSP extension, 128 KB program flash, 64 KB RAM, and FlexMemory (4 KB FlexRAM + 64 KB FlexNVM), designed for industrial control and secure embedded applications operating from 1.71–3.6 V across –40 to 105°C.

For engineers reviewing the MK11DX128AVLK5 datasheet, MK11DX128AVLK5 pinout, MK11DX128AVLK5 application, or MK11DX128AVLK5 equivalent, key selection considerations include its FlexMemory architecture, hardware AES/SHA-256 encryption, 16-bit SAR ADC, dual 12-bit DACs, and 80-pin LQFP package with USB Device Charger Detect support.

Technical Context

The MK11DX128AVLK5 implements an ARM Cortex-M4 core with DSP instructions and no FPU, running at up to 50 MHz with a multi-purpose clock generator supporting 3–32 MHz crystal and 32 kHz RTC oscillators. Its memory subsystem includes 128 KB on-chip flash, 64 KB SRAM, and FlexMemory comprising 64 KB FlexNVM and 4 KB FlexRAM-enabling EEPROM-like wear leveling and data logging without external storage.

Peripherals include four UARTs, two I²C modules, two SPI interfaces, one I²S module, eight-channel PWM timer, two 2-channel general-purpose timers (one with quadrature decoder), real-time clock, 16-bit SAR ADC with 16 channels, dual 12-bit DACs, two analog comparators with integrated 6-bit DACs, and hardware cryptographic acceleration for DES, 3DES, AES, MD5, SHA-1, and SHA-256.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm), RoHS-compliant, moisture sensitivity level 3, rated for reflow up to 260°C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MK11DX128AVLK5, MKE15Z128VLH7 offers lower BOM cost but sacrifices DSP capability and secure storage; MKL27Z128VLH7 reduces package size and pin count at the expense of FlexMemory, crypto, and advanced analog features - making MK11DX128AVLK5 the only option supporting simultaneous secure OTA, motor control, and high-resolution analog I/O in a single chip.

Availability

MK11DX128AVLK5 is available at Aetrix Electronics and suitable for industrial motor control, secure IoT edge nodes, medical diagnostic instruments, and automotive body controllers requiring stable component supply and long-term lifecycle support.

Supply support for MK11DX128AVLK5 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, and IoT markets, with roots in Freescale's Kinetis MCU portfolio.

The MK11DX128AVLK5 belongs to the Kinetis K11 sub-family - engineered for cost-sensitive industrial and consumer applications demanding robust security, analog integration, and flexible nonvolatile memory without FPU overhead.

FAQ

What is the maximum operating frequency of the MK11DX128AVLK5?

The MK11DX128AVLK5 operates at a maximum core/system clock frequency of 50 MHz, as specified in the K11 Sub-Family Data Sheet Rev. 4. This frequency is supported across the full –40 to 105°C temperature range and 1.71–3.6 V supply voltage, with flash clock limited to 25 MHz for reliable read/write operations. The MK11DX128AVLK5 achieves 1.25 Dhrystone MIPS per MHz at this speed.

Does the MK11DX128AVLK5 include hardware cryptographic acceleration?

Yes, the MK11DX128AVLK5 integrates a dedicated hardware security engine supporting DES, 3DES, AES (128/192/256), MD5, SHA-1, and SHA-256 algorithms. This module offloads cryptographic operations from the Cortex-M4 core, enabling fast secure boot, encrypted firmware updates, and TLS handshake acceleration - all confirmed in Section 5.5 of the K11P121M50SF4 datasheet.

What memory types are available on the MK11DX128AVLK5?

The MK11DX128AVLK5 contains 128 KB of program flash, 64 KB of SRAM, 64 KB of FlexNVM, and 4 KB of FlexRAM. FlexNVM enables EEPROM-like functionality with wear leveling and byte-level writes, while FlexRAM serves as user-configurable nonvolatile data storage - both features are explicitly documented for the MK11DX128AVLK5 in the K11 Sub-Family Data Sheet Rev. 4.

Which package does the MK11DX128AVLK5 use, and what are its dimensions?

The MK11DX128AVLK5 uses an 80-pin LQFP package with 12 mm × 12 mm body size and 0.5 mm pitch, designated by the "LK" suffix per the K11 part numbering guide. This package is moisture sensitivity level 3, rated for lead-free reflow up to 260°C, and includes exposed thermal pad for enhanced heat dissipation in industrial environments.

Does the MK11DX128AVLK5 support USB Device functionality with charger detection?

Yes, the MK11DX128AVLK5 includes a full-speed USB 2.0 device controller with integrated USB Device Charger Detect (DCD) logic. This allows automatic identification of standard downstream ports, charging downstream ports, and dedicated chargers - eliminating external USB ID pin detection circuitry. The feature is listed under "Communication interfaces" in the K11P121M50SF4 datasheet.