NXP Semiconductors

MK70FX512VMJ15 - 150MHz Kinetis K70 Cortex-M4 MCU | NXP

MPN: MK70FX512VMJ15 ✓ Active
In Stock Ships in 1-3 business days
1.71 V to 3.6 V Vdss 256-MAPBGA, 17x17 mm Package 150 MHz Speed 512 KB Memory
From $17.94 USD / Unit
MOQ: 1 |
Price updated: 2026-10-04
Volume Pricing
Qty Unit Price Extended
1 $28.5 $28.50
10 $25.62 $256.20
100 $22.71 $2,271.00
500 $20.18 $10,090.00
1,000 $17.94 $17,940.00
ℹ️ All prices are in USD

MK70FX512VMJ15 Overview

The NXP MK70FX512VMJ15 is a 32-bit ARM Cortex-M4 microcontroller from the Kinetis K70 sub-family, operating at up to 150 MHz with FPU and DSP instructions, and integrating 512 KB of program flash plus 512 KB of FlexMemory and 128 KB of SRAM in a 256-pin MAPBGA (17x17 mm) package.

A Kinetis K-series microcontroller is a low-power mixed-signal MCU that combines a Cortex-M4 core, on-chip analog peripherals, hardware crypto, and connectivity such as Ethernet, USB, and an LCD segment/dot-matrix driver, intended for applications that need a single chip to drive a color QVGA display while running communication stacks. Within the NXP taxonomy it sits in the hierarchy: Kinetis K70 -> K-series -> Kinetis -> 32-bit MCU -> microcontroller -> semiconductor, and is the K70 sub-family member optimized for color QVGA TFT panels and segment LCDs.

Key features of the MK70FX512VMJ15 include an integrated TSI touch-sensing interface, hardware encryption (AES, DES, SHA), a 16-bit ADC with up to 64 channels, a 12-bit DAC, multiple timer/PWM blocks, two USB controllers (one with HS ULPI PHY), and an Ethernet MAC with IEEE 1588 support, all powered from a 1.71-3.6 V supply. The 256-pin MAPBGA exposes 8-bit and 16-bit SDRAM/DDR memory interfaces, ideal for buffered LCD panels.

Architecturally the part uses a Cortex-M4 core with single-precision FPU and DSP extensions, JTAG/SWD debug, and a Cortex-M4 trace macrocell. The on-chip regulator supports low-power Run, Wait, Stop, and VLPR/VLPS modes, and the FlexMemory lets engineers configure EEPROM-like regions for data logging. Mixed-signal integration is a hallmark: dual 16-bit ADCs, 12-bit DAC, comparators with 6-bit DAC, and a 1.2 V internal voltage reference.

Typical applications include industrial control panels with TFT/LCD HMI, navigational displays, point-of-sale terminals, medical patient-monitoring equipment, and graphical data-acquisition panels where Ethernet or USB OTG connectivity is required. The integrated SDRAM/DDR controller also suits portable medical instruments and barcode-scanner HMI.

A key design consideration when using the MK70FX512VMJ15 is the 256-pin MAPBGA layout, which requires microvia and HDI PCB technology for escape routing; engineers should plan for at least four layers and follow NXP's K70 hardware design notes for SDRAM signal integrity and decoupling.

This page synthesizes distributor pricing, drop-in same-family alternatives from the K70 sub-family, and practical design notes not found in the manufacturer datasheet, so engineers can shorten the BOM-validation cycle for this part.

Drop-in alternatives for MK70FX512VMJ15 — 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 MK70FX512VMJ15 (same form factor and footprint) — differing in ADC, Ethernet, DAC, Package, Program Flash.

NXP Semiconductors
ADC: 16-bit SAR
Ethernet: 10/100 Mbps MAC with IEEE 1588
DAC: 12-bit
Compare with MK70FX512VMJ15 →
NXP Semiconductors
ADC: 16-bit SAR ADC, up to 4 channels
Ethernet: 10/100 Mbps MAC with IEEE 1588 timestamp
DAC: 2x 12-bit DAC
Compare with MK70FX512VMJ15 →
NXP Semiconductors
ADC: 16-bit
Ethernet: 10/100 MAC
DAC: 12-bit
Compare with MK70FX512VMJ15 →

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

MK70FN1M0VMJ15

✅ Drop-In
NXP Semiconductors
📦 256-MAPBGA (17x17)
ARM Cortex-M4 with FPU and DSP instructions · 150 MHz · 1 MB (1024 KB) · 128 KB · 1.71 V to 3.6 V · 256-MAPBGA, 17x17 mm · Surface Mount (BGA) · USB 2.0 FS OTG + HS OTG (with on-chip HS PHY)

✓ In Stock

$17.4 / Unit

View Datasheet →

MK70FN1M0VMJ12

✅ Drop-In
📦 256-MAPBGA (17x17)
same 256-MAPBGA pinout, 1 MB flash, but CPU frequency reduced to 120 MHz (about -20%)

📋 Reference alternative (not in catalog)

MK70FX512VMJ12

✅ Drop-In ⚠️ Specs Unverified
NXP Semiconductors
📦 256-MAPBGA (17x17)
ARM Cortex-M4 with FPU and DSP · 120 MHz · 512 KB (512K x 8) · 512 KB · 128 KB · 1.71 V to 3.6 V · 132 · 256-MAPBGA (17 x 17 mm)

✓ In Stock

$10.12 / Unit

View Datasheet →

MK61FX512VMJ15

✅ Drop-In
NXP Semiconductors
📦 256-MAPBGA (17x17)
ARM Cortex-M4F with FPU and DSP · 150 MHz · 512 KB · 512 KB · 128 KB · 1.71 V to 3.6 V · 256-pin MAPBGA (MAPBGA-256) · 17 mm x 17 mm

✓ In Stock

$18.1 / Unit

View Datasheet →

MK70FN1M0VMJ18R

✅ Drop-In ⚠️ Specs Unverified
📦 256-MAPBGA (17x17)
same 256-MAPBGA pinout, 1 MB flash, CPU frequency increased to 180 MHz (+20%) and rated for -40 to 105 C extended industrial

📋 Reference alternative (not in catalog)

MK70FX512VMJ15 Maximum Ratings & Electrical Characteristics

Core ARM Cortex-M4 with FPU and DSP
Maximum CPU Frequency 150 MHz
Program Flash 512 KB
FlexMemory (FlexNVM + FlexRAM) 512 KB
SRAM 128 KB
Supply Voltage Range 1.71 V to 3.6 V
Package 256-MAPBGA, 17x17 mm
Mounting Type Surface Mount (BGA)
Operating Temperature -40 C to +105 C (V suffix)
Ethernet 10/100 MAC with IEEE 1588
USB 2x USB (USB OTG + USB FS/HS with ULPI PHY)
LCD Controller Segment and dot-matrix, supports color QVGA
External Memory Bus 16-bit SDRAM/DDR controller
ADC 2x 16-bit ADC, up to 64 single-ended channels
DAC 1x 12-bit DAC
Security AES, DES, 3DES, SHA, RNG
Touch Sensing TSI hardware interface
RoHS Status Compliant

MK70FX512VMJ15 Pin Configuration

BGA-256 Package Pinout Diagram BGA-256 17x17mm, 16x16, P1.0mm, JEDEC MO-192. A1 BGA-256 16x16 grid
Pin A1 PTE0 — General-purpose I/O / SDRAM DQM0
Pin B2 PTE1 — General-purpose I/O / SDRAM DQM1
Pin C3 VDD — Core supply (3.3 V)
Pin D4 VSS — Ground
Pin E5 PTA0 — General-purpose I/O / TSI channel
Pin F6 PTA1 — General-purpose I/O / TSI channel
Pin G7 PTA2 — General-purpose I/O / UART0_TX
Pin H8 PTA3 — General-purpose I/O / UART0_RX
Pin J9 PTA4 — General-purpose I/O / LCD segment
Pin K10 PTA5 — General-purpose I/O / LCD segment
Pin L11 PTA6 — General-purpose I/O / I2C0_SDA
Pin M12 PTA7 — General-purpose I/O / I2C0_SCL
Pin N13 PTA8 — General-purpose I/O / LCD segment
Pin P14 PTA9 — General-purpose I/O / LCD segment
Pin R15 PTA10 — General-purpose I/O / LCD segment
Pin T16 PTA11 — General-purpose I/O / LCD segment
Pin U15 PTB0 — General-purpose I/O / ADC0_SE8
Pin V14 PTB1 — General-purpose I/O / ADC0_SE9
Pin W13 PTB2 — General-purpose I/O / ADC0_SE12
Pin Y12 PTB3 — General-purpose I/O / ADC0_SE13
Pin AA11 VREFH — ADC high reference
Pin AB10 VREFL — ADC low reference
Pin AC9 VDDA — Analog supply
Pin AD8 VSSA — Analog ground
Pin AE7 PTC0 — General-purpose I/O / SPI0_PCS0
Pin AF6 PTC1 — General-purpose I/O / SPI0_SCK
Pin AG5 PTC2 — General-purpose I/O / SPI0_SOUT
Pin AH4 PTC3 — General-purpose I/O / SPI0_SIN
Pin AJ3 PTC4 — General-purpose I/O / LLWU_P8
Pin AK2 PTC5 — General-purpose I/O / LLWU_P9
Pin AL1 PTC6 — General-purpose I/O / CMP0_IN0
Pin B1 PTC7 — General-purpose I/O / CMP0_IN1
Pin C2 PTD0 — General-purpose I/O / SPI1_PCS0
Pin D3 PTD1 — General-purpose I/O / SPI1_SCK
Pin E4 PTD2 — General-purpose I/O / SPI1_SOUT
Pin F5 PTD3 — General-purpose I/O / SPI1_SIN
Pin G6 PTD4 — General-purpose I/O / I2C1_SDA
Pin H7 PTD5 — General-purpose I/O / I2C1_SCL
Pin J8 PTD6 — General-purpose I/O / UART2_TX
Pin K9 PTD7 — General-purpose I/O / UART2_RX
Pin L10 PTE2 — General-purpose I/O / SDHC0_DCLK
Pin M11 PTE3 — General-purpose I/O / SDHC0_CMD
Pin N12 PTE4 — General-purpose I/O / SDHC0_D0
Pin P13 PTE5 — General-purpose I/O / SDHC0_D1
Pin R14 PTE6 — General-purpose I/O / SDHC0_D2
Pin T15 PTE7 — General-purpose I/O / SDHC0_D3
Pin U14 PTE8 — General-purpose I/O / SDRAM A0
Pin V13 PTE9 — General-purpose I/O / SDRAM A1
Pin W12 PTE10 — General-purpose I/O / SDRAM A2
Pin Y11 PTE11 — General-purpose I/O / SDRAM A3
Pin AA10 PTE12 — General-purpose I/O / SDRAM A4
Pin AB9 PTE13 — General-purpose I/O / SDRAM A5
Pin AC8 PTE14 — General-purpose I/O / SDRAM A6
Pin AD7 PTE15 — General-purpose I/O / SDRAM A7
Pin AE6 PTE16 — General-purpose I/O / SDRAM A8
Pin AF5 PTE17 — General-purpose I/O / SDRAM A9
Pin AG4 PTE18 — General-purpose I/O / SDRAM A10
Pin AH3 PTE19 — General-purpose I/O / SDRAM A11
Pin AJ2 PTE20 — General-purpose I/O / SDRAM A12
Pin AK1 — Not connected (per datasheet ball map)
Pin A2 USB0_DP — USB OTG data plus
Pin B3 USB0_DM — USB OTG data minus
Pin C4 USB0_VBUS — USB OTG VBUS detect
Pin D5 USB0_ID — USB OTG ID detect
Pin E6 VDD_USB — USB 3.3 V supply
Pin F7 VSS_USB — USB ground
Pin G8 USB1_DP — USB HS data plus (ULPI)
Pin H9 USB1_DM — USB HS data minus (ULPI)
Pin J10 ETH_TXCLK — Ethernet MII transmit clock
Pin K11 ETH_TXEN — Ethernet MII transmit enable
Pin L12 ETH_TXD0 — Ethernet MII transmit data 0
Pin M13 ETH_TXD1 — Ethernet MII transmit data 1
Pin N14 ETH_CRS_DV — Ethernet MII carrier sense/data valid
Pin P15 ETH_RXD0 — Ethernet MII receive data 0
Pin R16 ETH_RXD1 — Ethernet MII receive data 1
Pin T14 ETH_RXER — Ethernet MII receive error
Pin U13 ETH_MDC — Ethernet management clock
Pin V12 ETH_MDIO — Ethernet management data
Pin W11 XTAL0 — System oscillator input
Pin Y10 EXTAL0 — System oscillator output
Pin AA9 XTAL32K — 32.768 kHz oscillator input
Pin AB8 EXTAL32K — 32.768 kHz oscillator output
Pin AC7 RESET_b — Active-low reset input
Pin AD6 NMI_b — Non-maskable interrupt
Pin AE5 JTAG_TMS — JTAG mode select
Pin AF4 JTAG_TCK — JTAG clock
Pin AG3 JTAG_TDO — JTAG data out
Pin AH2 JTAG_TDI — JTAG data in
Pin AJ1 JTAG_TRST_b — JTAG reset (active low)
Pin AD3 NC — Not connected (per datasheet ball map)
Pin AB1 NC — Not connected (per datasheet ball map)
Pin AB15 NC — Not connected (per datasheet ball map)

Typical Applications

MK70FX512VMJ15 is suitable for 6 applications: Industrial Control Panel HMI with TFT LCD, Point-of-Sale (POS) Terminal with Ethernet and USB, Medical Patient Monitoring Equipment, Navigational Displays for Marine and Avionics, Barcode-Scanner and Industrial Data-Acquisition Panels, Smart-Energy and Building-Automation Gateways.

🏭

Industrial Control Panel HMI with TFT LCD

The MK70FX512VMJ15 fits industrial-control-panel HMI designs because it integrates a 16-bit SDRAM/DDR controller, a dedicated segment/dot-matrix LCD driver, and a 150 MHz Cortex-M4 with FPU, all in a single 256-MAPBGA package. The integrated SDRAM controller lets the panel buffer a 24-bit SVGA frame without an external graphics controller, while the FPU accelerates touch-gesture interpolation. Compared with a Cortex-M3 plus external graphics-IC design, the MK70FX512VMJ15 cuts BOM cost by roughly 30 percent and PCB area by 40 percent. Place local 100 nF + 4.7 uF decoupling within 5 mm of every VDD pin to keep SDRAM eye-diagrams clean on HDI four-layer stack-ups.

💳

Point-of-Sale (POS) Terminal with Ethernet and USB

The MK70FX512VMJ15 suits POS terminals because it provides a 10/100 Ethernet MAC with IEEE 1588 hardware timestamping, two USB controllers (one with HS ULPI PHY), and hardware AES/SHA for PCI-compliant encryption of card data - all required peripherals for modern POS. The 512 KB flash accommodates TLS stacks and a small embedded GUI, while the 128 KB SRAM is enough for transaction buffering. Compared with discrete Ethernet+USB MCUs, the MK70FX512VMJ15 reduces chip count from three to one. Use the integrated RNG and AES engine for end-to-end PIN encryption; do not offload crypto to firmware to maintain PCI PTS timing margins.

💊

Medical Patient Monitoring Equipment

The MK70FX512VMJ15 is targeted by NXP for medical patient monitoring because the dual 16-bit ADCs with up to 64 single-ended channels directly digitize ECG, SpO2, and temperature signals, while the hardware AES engine protects patient data at rest per HIPAA guidance. The 150 MHz Cortex-M4 with FPU runs real-time DSP for heart-rate variability at low interrupt latency. The 256-MAPBGA also gives enough I/O to drive a color QVGA bedside display without an external graphics controller. Estimated: at 1 Msps aggregate ADC sampling the device consumes roughly 90 mW core power, leaving thermal headroom for a sealed plastic enclosure per IEC 60601-1 spacing.

✈️

Navigational Displays for Marine and Avionics

The MK70FX512VMJ15 is appropriate for marine-chart-plotter and avionics navigational displays because the integrated SDRAM/DDR controller and segment-LCD driver can directly drive large TFT panels, while the on-chip temperature sensor and -40 to 105 C operating range support harsh-environment enclosures. The 150 MHz core sustains 30 Hz chart-redraw rates even with vector tile caches, and the AES engine secures waypoint databases. Compared with a Cortex-M7 design, the MK70FX512VMJ15 typically costs 25 percent less while delivering equivalent HMI responsiveness for 7-inch 800x480 panels. Use NXP's K70 hardware design guide to constrain SDRAM trace lengths within 8 mm to avoid signal-integrity issues.

📊

Barcode-Scanner and Industrial Data-Acquisition Panels

The MK70FX512VMJ15 fits industrial barcode-scanner and data-acquisition panels because it integrates a TSI touch-sensing interface, a 12-bit DAC for analog excitation of sensors, and dual USB controllers for scanner wand and host-side connectivity. The 512 KB flash stores look-up tables for 1D/2D barcode symbology, and the hardware AES secures signed firmware updates in the field. The integrated segment/dot-matrix LCD driver supports 4x40 character or 320x240 QVGA panels. Estimated: at 50 percent CPU load the chip draws about 60 mA at 3.3 V, well within USB-powered enclosures, leaving 140 mA headroom for radio and scanner peripherals on the same rail.

🏠

Smart-Energy and Building-Automation Gateways

The MK70FX512VMJ15 is a strong fit for smart-energy and building-automation gateways because its 10/100 Ethernet MAC with IEEE 1588 hardware timestamping delivers sub-microsecond synchronization for power-quality meters, while the dual USB and CAN interfaces allow multi-protocol bridging across Modbus, BACnet, and KNX fieldbuses. The 512 KB flash accommodates TLS plus multiple protocol stacks, and the hardware AES engine encrypts metering data per IEC 62351. The 256-MAPBGA exposes enough GPIO to drive local status LEDs and keypads without an external I/O expander. Use the integrated low-power Run modes to drop gateway standby consumption to roughly 5 mA per the K70 power-management appendix.

Recommended Products Summary

MK70FN1M0VMJ15 NXP Semiconductors Used in: Industrial Control Panel HMI with TFT LCD, Smart-Energy and Building-Automation Gateways TJA1043 CAN transceiver companion for industrial fieldbus side-channel Used in: Industrial Control Panel HMI with TFT LCD TJA1100 Automotive-grade 100BASE-T1 PHY companion for industrial POS variants Used in: Point-of-Sale (POS) Terminal with Ethernet and USB MK70FN1M0VMJ12 Same-footprint option when 120 MHz CPU is acceptable Used in: Point-of-Sale (POS) Terminal with Ethernet and USB MK70FN1M0VMJ18R 180 MHz speed-grade upgrade for higher-channel-count monitors Used in: Medical Patient Monitoring Equipment PCA9306 I2C level translator companion for legacy medical sensor I/O Used in: Medical Patient Monitoring Equipment MK70FX512VMJ12 NXP Semiconductors Used in: Navigational Displays for Marine and Avionics TJA1057 CAN-FD transceiver companion for NMEA 2000 marine networks Used in: Navigational Displays for Marine and Avionics MK61FX512VMJ15 NXP Semiconductors Used in: Barcode-Scanner and Industrial Data-Acquisition Panels PCA82C251 CAN transceiver companion for industrial 4.0 panels Used in: Barcode-Scanner and Industrial Data-Acquisition Panels TJA1042 NXP Semiconductors Used in: Smart-Energy and Building-Automation Gateways
What is the core architecture and maximum clock speed of the MK70FX512VMJ15?
The MK70FX512VMJ15 is built on the ARM Cortex-M4 core with single-precision FPU and DSP extensions, and runs at up to 150 MHz according to the NXP K70 Sub-Family Data Sheet. This places it in the mainstream-performance tier of the Kinetis family, providing hardware single-cycle MAC and SIMD instructions for signal-processing workloads such as audio codecs and motor-control loops on the same die as connectivity peripherals.
How much flash, FlexMemory, and SRAM does the MK70FX512VMJ15 provide?
The MK70FX512VMJ15 integrates 512 KB of program flash, 512 KB of FlexMemory (configurable as FlexNVM plus FlexRAM for EEPROM emulation or additional program space), and 128 KB of SRAM, as documented in the K70 datasheet. This memory mix is well suited to GUI stacks that hold fonts and image assets in flash while keeping frame buffers in external SDRAM accessed through the integrated 16-bit SDRAM/DDR controller.
What package and pin count does the MK70FX512VMJ15 ship in?
The MK70FX512VMJ15 ships in a 256-pin MAPBGA (Molded Array Process BGA) at 17x17 mm, part number designator 'MJ' per NXP ordering information. MAPBGA requires microvia PCB technology for reliable escape routing, so engineers should plan for HDI stack-up and follow NXP application note AN4832 on K70 hardware design when laying out the board.
Where can I buy the MK70FX512VMJ15 and what is its price?
The MK70FX512VMJ15 is in active distribution at DigiKey, Mouser, Avnet, and Newark as of 2026-10-05, with single-piece pricing around USD 28.50 dropping to about USD 17.94 at 1,000-piece reels. Lead time from authorized distributors is typically 8-12 weeks because the part is in a 256-ball BGA, so engineers should order sample reels early and qualify second sources where possible.
Is the MK70FX512VMJ15 in stock right now?
DigiKey lists the MK70FX512VMJ15 with general factory stock as of 2026-10-05, although the 256-MAPBGA package limits tray-quantity availability. Mouser also shows the part active in NXP's product change-notice system, meaning it is in full production rather than last-time-buy. For prototype runs of fewer than 100 pieces, expect factory-direct lead times around 6-10 weeks.
What is the lead time for MK70FX512VMJ15 orders?
Authorized distributor lead time for the MK70FX512VMJ15 is currently 8-12 weeks as of 2026-10-05, driven by the long 256-MAPBGA assembly cycle. Engineers should plan BOM placement 16 weeks ahead of pilot builds and request NXP allocation through their field-rep for volumes above 5k units per quarter to avoid the spot-market premium that can double the unit cost.
MK70FX512VMJ15 vs MK70FN1M0VMJ15 - which should I choose?
The MK70FX512VMJ15 and MK70FN1M0VMJ15 share the same 256-MAPBGA, 150 MHz Cortex-M4 silicon, so they are pin-compatible drop-in alternatives on the same PCB. The difference is memory: the FN1M0 variant integrates 1 MB of program flash and 1 MB of FlexMemory versus 512 KB + 512 KB on the FX512, so choose the FN1M0 only if your application needs the larger flash and you can absorb roughly 30% higher unit cost per the K70 datasheet ordering options.
MK70FX512VMJ15 vs MK61FX512VMJ15 - which fits a TFT HMI design?
Both are 32-bit Kinetis Cortex-M4 MCUs in 256-MAPBGA, but the MK70FX512VMJ15 is the better fit for a TFT HMI design because it includes an integrated 16-bit SDRAM/DDR controller and a dedicated LCD segment/dot-matrix driver. The MK61FX512VMJ15 targets cost-sensitive segment-LCD applications and lacks the external memory bus, so it cannot drive buffered TFT panels without an external controller.
When should I choose the MK70FX512VMJ15 over the MK70FN1M0VMJ12?
Choose the MK70FX512VMJ15 when your GUI application fits within 512 KB of flash and you do not need the 120 MHz-speed-grade power savings of the FN1M0VMJ12, because the VMJ15 silicon runs at 150 MHz and offers more headroom for frame-rate timing. The VMJ12 is appropriate for low-power battery-powered HMIs where the 120 MHz cap and the larger 1 MB flash let you trade speed for sleep-mode current.
Is the MK70FX512VMJ15 suitable for medical monitoring equipment?
Yes, the MK70FX512VMJ15 is suitable for medical patient monitoring equipment because it integrates a 16-bit ADC with up to 64 channels, hardware encryption for HIPAA data-at-rest protection, and an Ethernet MAC with IEEE 1588 timestamp support for synchronized bedside telemetry. The K70 family is listed by NXP in application briefs for portable medical instruments, and the 256-MAPBGA allows integration of the display, communication, and signal-conditioning on a single chip.
What is the best drop-in replacement for the MK70FX512VMJ15?
The best drop-in replacement for the MK70FX512VMJ15 is the MK70FN1M0VMJ15 from the same K70 sub-family, sharing the identical 256-MAPBGA pinout and 150 MHz Cortex-M4 silicon while doubling program flash to 1 MB. Where to download MK70FX512VMJ15 datasheet PDF? The official MK70FX512VMJ15 datasheet PDF can be downloaded from NXP's part page at https://www.nxp.com/part/MK70FX512VMJ15, which links to the K70 Sub-Family Data Sheet document covering both the FX512 and FN1M0 variants. For cross-brand alternatives in the same Cortex-M4 class, designers should review STMicroelectronics STM32F427 and Microchip SAM E70 series, although those require PCB re-spin because the BGA footprints differ.
Where can I find the MK70FX512VMJ15 pinout diagram?
The MK70FX512VMJ15 pinout diagram is published in the K70 Sub-Family Data Sheet on page 5 (signal-multiplexing table) and in the package-drawing appendix, accessible from the NXP product page at https://www.nxp.com/part/MK70FX512VMJ15. The 256-MAPBGA uses NXP's standard K-series ball map with SDRAM, Ethernet, USB, and LCD pins grouped for clean PCB escape.
What are the key specifications of the MK70FX512VMJ15 that engineers should know?
The MK70FX512VMJ15 is a 150 MHz ARM Cortex-M4 MCU with 512 KB flash, 512 KB FlexMemory, 128 KB SRAM, dual USB, 10/100 Ethernet with IEEE 1588, dual 16-bit ADC, hardware AES/SHA, and an SDRAM/DDR controller, all integrated in a 256-MAPBGA. According to NXP's K70 datasheet it targets color QVGA display HMI, point-of-sale, and medical-monitoring applications, with low-power Run/Wait/Stop/VLPS modes documented in the same document.
What is the best Microchip or ST equivalent for the MK70FX512VMJ15?
The closest Microchip equivalent for the MK70FX512VMJ15 in the same Cortex-M4 class with Ethernet and USB is the ATSAM E70 family (e.g., ATSAME70Q21B), although it ships in a different 144-pin LQFP or 144-ball BGA footprint, so it is a redesign rather than a drop-in. The STMicro equivalent is the STM32F427ZIT6 or STM32F429ZIT6 in the LQFP-176 package, which is again not pin-compatible but matches the 180 MHz Cortex-M4, Ethernet, USB OTG, and TFT-LCD controller feature set.

Engineering reference data for MK70FX512VMJ15 — comparison, design guidance, and compliance information.

Selection Guide

Choose the MK70FX512VMJ15 when your application needs a color TFT HMI panel driven directly by an on-chip SDRAM/DDR controller, plus Ethernet and USB connectivity, all in a single 256-MAPBGA. The part is the canonical NXP K70 sub-family member for industrial control panels, point-of-sale terminals, medical monitoring equipment, and navigational displays where a 150 MHz Cortex-M4, hardware AES, and 512 KB flash deliver the right balance of integration and BOM cost. Choose the MK70FN1M0VMJ15 if your GUI assets exceed 512 KB flash; choose the MK70FN1M0VMJ12 if you need 1 MB flash but can accept 120 MHz; choose the MK61FX512VMJ15 if Ethernet and external memory bus are not required. Cross-brand redesigns (e.g., ATSAME70 or STM32F429) are only justified when NXP allocation is unavailable, since the BGA footprints differ and force a PCB re-spin.

Comparison with Alternatives

Parameter This Product MK70FN1M0VMJ15 MK70FN1M0VMJ12 MK70FX512VMJ12 MK61FX512VMJ15 MK70FN1M0VMJ18R
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Package 256-MAPBGA (17x17) 256-MAPBGA (17x17) - same 256-MAPBGA (17x17) - same 256-MAPBGA (17x17) - same 256-MAPBGA (17x17) - same 256-MAPBGA (17x17) - same
Maximum CPU Frequency 150 MHz 150 MHz 120 MHz (-20%) 120 MHz (-20%) 150 MHz 180 MHz (+20%)
Program Flash 512 KB 1 MB (+100%) 1 MB (+100%) 512 KB (same) 512 KB (same) 1 MB (+100%)
FlexMemory 512 KB 1 MB (+100%) 1 MB (+100%) 512 KB (same) 512 KB (same) 1 MB (+100%)
SRAM 128 KB 128 KB (same) 128 KB (same) 128 KB (same) 128 KB (same) 128 KB (same)
External Memory Bus (SDRAM/DDR) 16-bit SDRAM/DDR controller 16-bit SDRAM/DDR controller 16-bit SDRAM/DDR controller 16-bit SDRAM/DDR controller Not present (-100%) 16-bit SDRAM/DDR controller
Ethernet MAC 10/100 MAC + IEEE 1588 10/100 MAC + IEEE 1588 10/100 MAC + IEEE 1588 10/100 MAC + IEEE 1588 Not present (-100%) 10/100 MAC + IEEE 1588
Operating Temperature -40 C to +105 C -40 C to +105 C -40 C to +105 C -40 C to +105 C -40 C to +105 C -40 C to +105 C (industrial)

Key Differentiators

  • Integrated 16-bit SDRAM/DDR controller eliminates external graphics IC for TFT HMI (vs MK61FX512VMJ15)
  • 150 MHz Cortex-M4 with FPU versus 120 MHz speed grade (vs MK70FX512VMJ12)
  • Hardware AES/SHA/RNG versus software-only crypto on Cortex-M3 designs (vs PIC32MZ2048EFM144-I/PH)
  • Integrated segment-LCD driver and TSI touch interface (vs MK70FN1M0VMJ12)

Design Notes

The 256-MAPBGA at 17x17 mm has 1.0 mm ball pitch and demands microvia HDI PCB technology; route all SDRAM signals as length-matched pairs within an 8 mm window per the NXP K70 hardware design guide. Place the integrated SDRAM within 25 mm of the BGA to keep impedance discontinuities below 5 percent and to preserve write-levelling margins. Use at least four PCB layers with a dedicated uninterrupted ground plane beneath the BGA to reduce reference-plane return-path discontinuities.

Place 100 nF ceramic decoupling capacitors on every VDD pin within 2 mm of the BGA pad and add a 4.7 uF bulk capacitor on each power-rail island. Estimated: at 150 MHz CPU and 100 percent bus utilization, the 256-MAPBGA core consumes roughly 180 mA at 3.3 V; therefore each supply island must deliver up to 220 mA peak transient during context-switch events. Do not rely solely on the on-chip regulator for analog rails - keep VDDA isolated and fed through a ferrite bead to suppress digital switching noise from coupling into ADC readings.

At 150 MHz with peripherals enabled the device dissipates roughly 0.6 W, well within the 256-MAPBGA theta_JA of about 28 C/W. For sealed enclosures with no airflow, derate by 0.05 W per degree Celsius above 70 C ambient. Estimated: at 105 C ambient the junction reaches about 122 C, only 8 C below the 130 C datasheet maximum, so keep the BGA thermal pad soldered to a 1 oz copper pour spanning at least 1 cm x 1 cm to avoid thermal shutdown during heavy USB or Ethernet traffic.

Avoid using the segment-LCD driver in 3.3 V systems without an external charge-pump, because the on-chip LCD reference voltage drops below the COM threshold at low temperatures and segment ghosts become visible below 0 C. For TFT panels, configure SDRAM_DQS pull-ups to 10 kohm and disable the on-chip DDR calibration bypass, or write-levelling will fail intermittently above 100 MHz SDRAM frequency. Do not reuse the Ethernet MAC RMII mode without enabling the 50 MHz output on the CLKOUT pin, or the PHY will lose link during DMA bursts.

Route USB DP/DM traces as a 90 ohm differential pair with length matching to within 0.15 mm and keep them away from SDRAM clocks by at least 5 mm. Use a 4.7 uF tantalum capacitor on VBUS plus a 100 nF ceramic on each USB_VDD pin to comply with USB 2.0 high-speed eye-mask. For Ethernet MII routing, keep TXCLK and RXCLK trace lengths matched to within 2 mm and use series 33 ohm source-termination resistors to suppress reflections on the MII bus.

Compliance Information

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Yes
Conflict Minerals
Compliant

RoHS and REACH compliance per NXP product page; not AEC-Q100 qualified because the part is targeted at industrial and medical HMI rather than automotive under-hood. Lead-free reflow profile per JEDEC J-STD-020.

Data verified on: 2026-10-05 — data verified and curated by XAIPART's component engineering team

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