MK51DN512ZCLL10 - 100MHz Cortex-M4 MCU, 512KB Flash | NXP
MPN: MK51DN512ZCLL10 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.37 | $8.37 |
| 10 | $7.9 | $79.00 |
| 100 | $7.2 | $720.00 |
| 500 | $6.8 | $3,400.00 |
| 1,000 | $6.45 | $6,450.00 |
MK51DN512ZCLL10 Overview
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest tier of the embedded processing hierarchy (MCU -> embedded processor -> application processor -> SoC). Measurement MCUs such as the Kinetis K51 family add analog and display integration - here a Segment LCD controller, USB OTG, and multiple serial interfaces - so a single chip can drive a complete instrument front panel.
Key features of the MK51DN512ZCLL10 include the 100 MHz Cortex-M4 core with DSP instructions, 512 KB (512K x 8) on-chip flash supporting firmware-in-field updates, 128 KB of SRAM, a USB 2.0 full-speed controller with OTG capability, and a Segment LCD controller suited to battery-powered metering products. Serial connectivity spans I2C, IrDA, SPI, SD, and UART/USART.
Architecturally, the device operates from a single supply of 1.71 V to 3.6 V (1.8 V / 2.5 V / 3.3 V nominal), with 57 general-purpose I/O lines. The Cortex-M4 pipeline and Harvard bus structure provide deterministic single-cycle multiply and hardware divide, beneficial for digital filtering and measurement math in instrumentation firmware.
Typical applications include medical measurement devices, utility metering with LCD displays, industrial portable instrumentation, and consumer health monitors - anywhere a 32-bit MCU must combine USB communications, LCD readout, and mixed-signal measurement.
Design consideration: because this part is listed NRND (Not Recommended for New Designs) on the NXP product page, new designs should evaluate the pin-compatible Kinetis K5x successors, while existing BOMs can continue sourcing through authorized channels such as Rochester Electronics.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing references are as of 2026-10-18.
Drop-in alternatives for MK51DN512ZCLL10 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MK51DN512ZCLL10 (same form factor and footprint) — differing in Core Processor, Flash Memory, SRAM, USB, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MK50DN512CLL10
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →MK50DX256CLL10
✅ Drop-In✓ In Stock
$10.95 / Unit
View Datasheet →MK51DX256CLL7
✅ Drop-In✓ In Stock
$14.1 / Unit
View Datasheet →MK51DN512ZCLL10 Maximum Ratings & Electrical Characteristics
| Core Processor | ARM Cortex-M4 (32-bit) |
| Core Clock Speed | 100 MHz |
| Flash Memory | 512 KB (512K x 8) |
| SRAM | 128 KB |
| Supply Voltage Range | 1.71 V to 3.6 V (1.8 V / 2.5 V / 3.3 V nominal) |
| I/O Ports | 57 |
| Package Type | 100-LQFP (14 x 14 mm) |
| Connectivity | I2C, IrDA, SD, SPI, UART/USART, USB OTG |
| Display Controller | Segment LCD |
| Product Family | Kinetis K51 (K50 sub-family) Measurement MCU |
| Data Bus Width | 32 bit |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Lifecycle Status | NRND (per NXP product page) |
MK51DN512ZCLL10 100-lqfp (14 x 14 mm) Pin Configuration Guide
Pin configuration for MK51DN512ZCLL10 (100-lqfp (14 x 14 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MK51DN512ZCLL10.
Refer to the datasheet for full pin configuration.
Typical Applications
MK51DN512ZCLL10 is suitable for 6 applications: Medical Measurement and Diagnostic Devices, Utility and Energy Metering with LCD Display, Industrial Portable Test Instruments, USB-Connected Data Loggers, Building Automation Panels and Controllers, Consumer Health and Wellness Products.
Medical Measurement and Diagnostic Devices
The MK51DN512ZCLL10 is well suited to portable medical measurement instruments such as glucose meters, blood-pressure monitors, and point-of-care analyzers. Its 100 MHz Cortex-M4 core executes digital-filtering and DSP math on sampled biosignals with single-cycle MAC operations, while 512 KB of flash accommodates protocol stacks, calibration tables, and GUI code without external memory. The integrated Segment LCD controller drives the display directly, removing an external LCD driver IC and its wiring, and the USB OTG controller provides data upload to clinical systems. Operating from 1.71 V to 3.6 V allows direct power from a single lithium cell with a small LDO. Consider current-generation Kinetis successors for new medical designs given the NRND status.
Recommended
Utility and Energy Metering with LCD Display
In electricity, water, and heat metering products, the MK51DN512ZCLL10 combines measurement computation and user interface in one chip. The Segment LCD controller drives the tariff and consumption digits directly from the MCU, the 100 MHz Cortex-M4 handles metrology algorithms such as RMS and energy accumulation, and the 128 KB SRAM buffers load-profile logs between communication sessions. The USB OTG interface supports local meter reading, while UART and IrDA ports enable optical-probe and RF-module connectivity. With 57 GPIOs and a 14 x 14 mm LQFP footprint, a complete meter main board can be kept compact and single-layer-component dense. Verify long-term supply, as the part is NRND and successor parts are recommended for new meter platforms.
Recommended
Industrial Portable Test Instruments
Handheld industrial testers - insulation testers, loop calibrators, vibration meters - benefit from the MK51DN512ZCLL10's integration level. The 100 MHz core performs FFT and RMS computation on sensor data, the Segment LCD renders readings in daylight-visible seven-segment form with low power, and USB OTG allows configuration and data logging against a PC. The 1.71 V to 3.6 V single-supply operation simplifies battery power sequencing, and 57 GPIO lines interface keypads, relays, and signal-switching circuits directly. The 512 KB flash stores instrument firmware, calibration constants, and multiple language string tables. Because the device is NRND, existing instrument platforms can continue sourcing it, but new instruments should target current-generation Kinetis or i.MX RT crossover parts.
Recommended
USB-Connected Data Loggers
The MK51DN512ZCLL10 serves battery-powered data loggers that periodically attach to a PC. Its USB 2.0 full-speed controller with OTG enumerates as a CDC or HID device without an external USB chip, the 128 KB SRAM buffers high-rate sample streams before upload, and 512 KB flash implements a dual-bank bootloader for field firmware updates via the same USB port. SD-card interface support provides local mass storage for long unattended logging sessions, and the Segment LCD gives users instant status feedback such as record count and battery level. The 100 MHz clock allows real-time timestamping of burst measurements. Designers should confirm USB compliance test data in the manufacturer datasheet for the target operating voltage.
Recommended
Building Automation Panels and Controllers
Wall-mounted thermostats, access-control panels, and small building controllers use the MK51DN512ZCLL10 to merge control logic and display. The Segment LCD controller shows setpoints and zone status, the I2C and SPI ports connect sensors and memory, and UART channels link to RS-485 transceivers for BACnet/Modbus field buses. The 100 MHz Cortex-M4 executes protocol stacks and PID control loops with ample margin, while the 1.71 V to 3.6 V supply range tolerates regulated 3.3 V rails derived from building power. With 57 GPIOs, relay and triac drive logic is handled without port expanders. Given NRND status, retrofit the footprint-compatible K5x successors or evaluate newer Kinetis parts for new panel designs.
Recommended
Consumer Health and Wellness Products
Connected scales, activity monitors, and personal wellness hubs exploit the MK51DN512ZCLL10's display-plus-USB integration. The Segment LCD gives instant weight or reading feedback at very low display power, the Cortex-M4 at 100 MHz runs filtering and body-composition math, and USB OTG provides both battery charging data paths and PC synchronization. I2C interfaces connect load-cell ADCs, heart-rate sensors, and touch keys, while 512 KB flash retains historical measurement data across battery replacement. The compact 14 x 14 mm LQFP fits slim handheld enclosures, and the 1.8 V-capable supply supports single-cell power trees. For new consumer designs, NXP recommends current-generation LPC or Kinetis parts given the NRND classification.
Recommended
Recommended Products Summary
Engineering reference data for MK51DN512ZCLL10 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MK50DN512CLL10 | MK50DX256CLL10 | MK51DX256CLL7 |
|---|---|---|---|---|
| Package | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm) - same | 100-LQFP (14 x 14 mm) - same | 100-LQFP (14 x 14 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 |
| Core Clock | 100 MHz | 100 MHz | 100 MHz | 72 MHz |
| Flash Memory | 512 KB | 512 KB | 256 KB | 256 KB |
| Segment LCD Controller | Yes (K51 measurement series) | No (K50 base series) | No (K50 base series) | Yes (K51 series) |
| USB OTG | Yes, full-speed | Yes, full-speed | Yes, full-speed | Yes, full-speed |
| Supply Voltage Range | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
Key Differentiators
- Integrated Segment LCD controller with 512 KB flash (vs MK50DN512CLL10)
- Double the flash of the cost-reduced K51 variant (vs MK51DX256CLL7)
- Higher memory density at equal core speed within the K50 family (vs MK50DX256CLL10)
Design Notes
The MK51DN512ZCLL10 operates from a single 1.71 V to 3.6 V supply (1.8 V, 2.5 V, or 3.3 V nominal). Place 100 nF ceramic decoupling capacitors at every VDD pin pair of the 100-LQFP package plus one bulk 4.7 uF to 10 uF capacitor per rail. If USB OTG is used, the USB transceiver supply must be clean and stable across the full flash-write voltage range; consult the manufacturer datasheet for the exact flash write voltage limits before enabling in-field firmware updates at reduced battery voltage.
For the 14 x 14 mm LQFP-100, use a standard 0.5 mm pitch footprint and connect the exposed thermal/electrical pads per the manufacturer's recommended land pattern. Keep the USB D+/D- pair as a 90-ohm matched differential with length matching and route away from the LCD segment drive lines, which toggle at high aggregate rates. Decouple the analog supply domain (VDDA) separately with an RC or ferrite filter from the digital VDD, especially when the on-chip measurement peripherals are used for precision sampling.
The part is NRND on the NXP product page - do NOT start new designs with this MPN without a lifecycle plan. Verify supply through authorized channels (DigiKey, Mouser, LCSC, Rochester Electronics) and avoid unauthorized brokers for production BOMs. Also note that pin-multiplexing on the 57 GPIOs is shared with LCD segment lines: if the Segment LCD controller is enabled, confirm in the datasheet pin mux table that the required USB and UART pins remain available before finalizing the pin assignment.
Compliance Information
Compliance status not stated in the verified search data. The NXP product page lists an Environmental Quality section for MK51DN512ZCLL10 - consult it directly for RoHS/REACH declarations before BOM sign-off.