NXP Semiconductors MK51DX256ZCMC10

Overview

MK51DX256ZCMC10 from NXP (formerly Freescale) is a 100 MHz ARM® Cortex®-M4 microcontroller with 256 KB flash, 64 KB SRAM, 256 KB FlexMemory, integrated IEEE 1588 Ethernet MAC, and dual 16-bit ADCs with PGA-designed for clinical instrumentation, portable medical devices, and test/measurement systems requiring high analog precision and networked timing.

For engineers reviewing the MK51DX256ZCMC10 datasheet, MK51DX256ZCMC10 pinout, MK51DX256ZCMC10 application, or MK51DX256ZCMC10 equivalent, key selection criteria include its 100 MHz real-time performance, hardware-accelerated cryptographic unit, segment LCD controller supporting 320 segments, USB OTG with charger detect, and FlexBus interface for external memory expansion in resource-constrained embedded designs.

Technical Context

The MK51DX256ZCMC10 implements a full-featured ARM Cortex-M4 core with DSP extensions and single-cycle MAC, paired with a programmable delay block (PDB) that synchronizes ADC/DAC sampling for sensor biasing sequences like glucometer strip measurement. Its analog subsystem integrates operational amplifiers, transimpedance amplifiers, voltage reference (VREF), and dual 16-bit ADCs with programmable gain amplifiers-enabling direct current-to-voltage conversion and high-fidelity signal acquisition without external front-end components.

It features IEEE 1588-2008 hardware timestamping in the Ethernet MAC for sub-microsecond clock synchronization in distributed test systems, alongside a hardware cryptographic acceleration unit (CAU) supporting AES, DES, SHA-1/256, and RNG-offloading security processing from the CPU while maintaining deterministic latency for real-time medical data handling.

Key Specifications

Pinout & Package

Package: 121-ball MAPBGA (8 mm × 8 mm, 0.5 mm pitch, ZCMC10 suffix). Ball map conforms to Kinetis K50 family standard layout for 121-BGA packages, with dedicated VDD/VSS pairs per power domain, configurable GPIO banks, and fixed-function pins for Ethernet PHY interface, USB D+/D−, and LCD segment/backplane drivers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MK51DX256ZCMC10, MK53DX256ZCMC10 adds CAN FD and doubles SRAM for multi-protocol gateways, while RT1052DVJ6B trades analog integration for raw M7 performance-making MK51DX256ZCMC10 optimal for cost-sensitive, analog-rich medical endpoints where mixed-signal consolidation reduces BOM and validation effort.

Availability

MK51DX256ZCMC10 is available at Aetrix Electronics and suitable for portable clinical monitors, blood pressure systems, laboratory multimeters, and point-of-care glucometers requiring stable component supply, long-term lifecycle support, and medical-grade qualification documentation.

Supply support for MK51DX256ZCMC10 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 applications, with roots in Freescale's embedded processor heritage.

The Kinetis K50 family was designed specifically for high-precision analog measurement and networked medical instrumentation-integrating metrology-grade ADCs, IEEE 1588 Ethernet, and low-power LCD control in a single ARM Cortex-M4 SoC.

FAQ

What is the maximum operating frequency of the MK51DX256ZCMC10?

The MK51DX256ZCMC10 operates at a maximum core frequency of 100 MHz. This speed is sustained across its full industrial temperature range (–40°C to +105°C) with appropriate voltage scaling and thermal management. The MK51DX256ZCMC10 achieves deterministic real-time response for time-critical medical algorithms such as pulse detection and arrhythmia classification without requiring overclocking or external PLLs.

Does the MK51DX256ZCMC10 include hardware encryption acceleration?

Yes, the MK51DX256ZCMC10 includes a Cryptographic Acceleration Unit (CAU) supporting AES-128/256, DES/3DES, SHA-1/256, and a true random number generator (RNG). This hardware block executes cryptographic operations independently of the CPU, reducing latency and power consumption during secure data transmission in HIPAA-compliant medical devices using the MK51DX256ZCMC10.

What LCD segment count does the MK51DX256ZCMC10 support?

The MK51DX256ZCMC10 supports up to 320 LCD segments in configurations such as 40×8 or 44×4, with built-in blink mode, segment fail detection, and firmware-reconfigurable frontplane/backplane mapping. This capability allows the MK51DX256ZCMC10 to drive large-format clinical displays while minimizing active current draw-critical for battery-powered telehealth terminals.

Is IEEE 1588 timestamping implemented in hardware on the MK51DX256ZCMC10?

Yes, the MK51DX256ZCMC10 integrates IEEE 1588-2008 hardware timestamping within its Ethernet MAC, enabling sub-microsecond packet timestamp accuracy without CPU intervention. This feature makes the MK51DX256ZCMC10 suitable for time-synchronized distributed test equipment, such as multi-channel oscilloscopes or calibration systems where deterministic network latency is required.

What analog peripherals are integrated into the MK51DX256ZCMC10?

The MK51DX256ZCMC10 integrates dual 16-bit ADCs with programmable gain amplifiers (PGA), two 12-bit DACs, operational amplifiers (OPAMP), transimpedance amplifiers (TRIAMP), and a precision voltage reference (VREF). These peripherals allow the MK51DX256ZCMC10 to directly condition and digitize sensor signals-including photodiode currents and strain gauge bridges-without external signal chain components.