NXP Semiconductors MK51DN512CLQ10

Overview

MK51DN512CLQ10 from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extensions, designed for embedded control and signal processing in industrial and human-machine interface applications. It features 512 KB on-chip flash, 128 KB RAM, dual 16-bit SAR ADCs with integrated PGA, two 12-bit DACs, USB OTG, six UARTs, and segment LCD controller supporting up to 40×8 segments - deployed in smart meters, portable medical devices, and industrial HMI panels.

For engineers reviewing the MK51DN512CLQ10 datasheet, MK51DN512CLQ10 pinout, MK51DN512CLQ10 application, or MK51DN512CLQ10 equivalent, key selection criteria include its 100 MHz CPU frequency, -40°C to +85°C temperature grade, LQFP-144 package, FlexBus external interface, and integrated analog subsystem with transimpedance amplifiers and real-time clock.

Technical Context

The MK51DN512CLQ10 implements an ARM Cortex-M4 core with hardware DSP instructions and single-cycle MAC, operating at up to 100 MHz with 1.25 DMIPS/MHz performance. Its memory subsystem includes 512 KB program flash (non-FlexMemory), 128 KB SRAM, EzPort serial programming interface, and FlexBus for external memory expansion.

System-level features include a multi-purpose clock generator with 3–32 MHz and 32 kHz crystal oscillators, 16-channel DMA supporting 63 request sources, memory protection unit (MPU), and low-power modes ranging from VLPR (1.12 mA @ 3.0 V) to VLLS1 (2.1 μA @ 3.0 V). Analog integration comprises two independent 16-bit ADCs (each with PGA up to ×64), two 12-bit DACs, two op-amps, three comparators with 6-bit DACs, and TSI touch-sensing interface.

Key Specifications

Pinout & Package

LQFP-144 (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow K51 signal multiplexing architecture per Document K51P144M100SF2V2, Rev. 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MK51DN512CLQ10, KL27Z128VLH4 trades performance and integration for lower cost and power, while MKE15Z128VLH7 improves analog fidelity but omits display and memory expansion - making MK51DN512CLQ10 uniquely suited for integrated HMI+control applications requiring both rich peripherals and deterministic real-time execution.

Availability

MK51DN512CLQ10 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, and portable medical instrumentation requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature extremes.

Supply support for MK51DN512CLQ10 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, IoT, and mobile applications. Formerly Freescale Semiconductor, it acquired the Kinetis portfolio in 2015.

The Kinetis K51 sub-family targets cost-optimized, mixed-signal microcontrollers for industrial control and human-machine interface applications - emphasizing integrated analog, low-power operation, and display support without sacrificing ARM Cortex-M4 performance.

FAQ

What is the maximum operating frequency of the MK51DN512CLQ10?

The MK51DN512CLQ10 operates at up to 100 MHz using its ARM Cortex-M4 core with DSP extensions. This frequency is supported across the full -40°C to +85°C ambient temperature range and 1.71 V to 3.6 V supply voltage, as verified in the K51P144M100SF2V2 datasheet Section 5.3.1. The MK51DN512CLQ10 achieves 1.25 Dhrystone MIPS per MHz, enabling real-time signal processing in demanding embedded applications.

Does the MK51DN512CLQ10 support external memory expansion?

Yes, the MK51DN512CLQ10 includes a FlexBus external bus interface capable of connecting to NOR/NAND flash, SRAM, and peripheral ASICs at up to 50 MHz. Pin assignments for address, data, chip select, and control signals are defined in the K51P144M100SF2V2 datasheet Section 8.2, and the interface supports programmable wait states and burst transfers - essential for display controllers or firmware-over-the-air update storage.

What analog peripherals are integrated into the MK51DN512CLQ10?

The MK51DN512CLQ10 integrates two independent 16-bit SAR ADCs (each with programmable gain amplifier up to ×64), two 12-bit DACs, two operational amplifiers, three analog comparators (each with integrated 6-bit DAC), two transimpedance amplifiers, and a precision voltage reference. These are documented in Sections 6.6.1–6.6.7 of the K51P144M100SF2V2 datasheet and enable direct sensor interfacing without external signal-conditioning components.

Is the MK51DN512CLQ10 pin-compatible with other K51 family members?

No - the MK51DN512CLQ10 uses the LQFP-144 package (PP = LQ in part number), while other K51 variants use QFN, MAPBGA, or smaller LQFP packages (e.g., MK51DN256CLQ10 shares the same package, but MK51DN256CMD10 uses LQFP-64). Pin compatibility is only guaranteed within identical package codes; migration requires PCB redesign when changing from LQFP-144 to other footprints.

What low-power modes does the MK51DN512CLQ10 support?

The MK51DN512CLQ10 supports seven low-power modes: RUN, WAIT, STOP, VLPR, VLPW, VLPS, and LLS/VLLS variants. Current consumption ranges from 1.12 mA in Very-Low-Power Run mode to 2.1 μA in VLLS1 mode (all at 3.0 V, -40°C to +25°C), as specified in Table 6 of the K51P144M100SF2V2 datasheet. These modes are managed by the low-leakage wakeup unit and support rapid wake-up times down to 5.0 μs.