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MK20DX128VFT5 - Kinetis K20 50MHz Cortex-M4 MCU 128KB | NXP
MK20DX128VFT5

MK20DX128VFT5 - Kinetis K20 50MHz Cortex-M4 MCU 128KB | NXP

The NXP Semiconductors MK20DX128VFT5 is a 32-bit ARM Cortex-M4 Kinetis K20 microcontroller with 128 KB of flash and 16 KB of SRAM, operating at up to 50 MHz core frequency. Housed in a 48-pin QFN-EP (7x7 mm) exposed-pad package, it targets USB-enabled embedded applications with on-chip Full-Speed USB 2.0 OTG controller, segment LCD driver, and a rich analog/digital peripheral set. The device supports a wide supply range of 1.71 V to 3.6 V and is offered across industrial temperature grades. What is a Kinetis K20 microcontroller? The K20 sub-family belongs to NXP's Kinetis lineup of low-power ARM Cortex-M4 microcontrollers targeted at USB connectivity, segment LCD displays, and mixed-signal industrial/consumer designs. Kinetis K20 sits under the broader ARM Cortex-M4 family and the wider Kinetis portfolio (K10/K20/K30/K40/K50/K60), which itself falls under the 32-bit MCU category and the broader integrated-circuit hierarchy of microcontrollers -> embedded processors -> semiconductors. Key features of the MK20DX128VFT5 include a Cortex-M4 core with single-precision FPU and DSP instructions, Full-Speed USB OTG with on-chip transceiver and Device Charge Detect (USB Charger Detection), 16-bit SAR ADC, 12-bit DAC, programmable gain amplifiers, low-power touch-sensing interface, and a flexible low-power segment-LCD controller (up to 8x36 segments). Hardware cryptographic accelerators and a true random number generator support secure applications, while a 6-bit FlexMemory and 128 KB flash support in-application programming and EEPROM emulation. The architecture uses a multi-layer AHB-Lite bus matrix with DMA channels, a Cortex-M4 core capable of 1.25 DMIPS/MHz, and integrated voltage regulation for low-power modes. The USB 2.0 Full-Speed OTG controller with on-chip HS PHY (via external transceiver interface) and pull-up/-down resistors simplifies BOM while supporting battery-charging detection per USB BC1.2, reducing external component count in USB peripherals. Typical applications of this part include USB peripherals (keyboards, mice, barcode scanners, MIDI controllers), segment-LCD human-machine interfaces for industrial equipment, low-power consumer devices with touch sensing, and secure IoT endpoints benefiting from the hardware crypto engine. The K20's combination of USB OTG, segment LCD, and rich analog makes it well suited for handheld instrumentation and medical devices. When designing with the MK20DX128VFT5, ensure the exposed pad is soldered to a sufficient copper pour for thermal dissipation; the QFN-EP package relies on this pad for both thermal and electrical ground. USB DP/DM trace routing must follow 90-ohm differential impedance and length matching per USB 2.0 specifications. This page synthesizes distributor pricing, drop-in Kinetis alternatives, and practical design notes not found in the manufacturer datasheet alone, presenting verified data points for engineers selecting a USB-enabled Cortex-M4 MCU.

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MK20DX128VMP5 - Kinetis K20 50MHz Cortex-M4 MCU, 128KB Flash | NXP
MK20DX128VMP5

MK20DX128VMP5 - Kinetis K20 50MHz Cortex-M4 MCU, 128KB Flash | NXP

The NXP MK20DX128VMP5 is a Kinetis K20 sub-family 32-bit ARM Cortex-M4 microcontroller operating at up to 50 MHz, integrating 128 KB of flash and 16 KB of SRAM, and housed in a 64-ball MAPBGA (5 mm x 5 mm) package. It targets USB-device and mixed-signal embedded designs with on-chip full-speed USB 2.0 device controller, a 16-bit SAR ADC, 12-bit DAC, comparators, and a flexible low-power peripheral set. Kinetis K2x microcontrollers are ARM Cortex-M4 based system-on-chip devices that integrate a high-performance processor core with on-chip analog, connectivity, and timer peripherals. The K20 sub-family sits within the broader Kinetis K series hierarchy: Kinetis microcontroller -> ARM Cortex-M4 MCU -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. This taxonomy matters for engineers selecting platform-compatible firmware and toolchains across a product family. Key features include 128 KB program flash, 16 KB SRAM, a 16-bit SAR ADC with up to 20 channels, 12-bit DAC, two analog comparators, low-power touch-sensing via the TSI module, an integrated USB device controller (full-speed), and a wide operating voltage range. The MAPBGA-64 package provides a small 5x5 mm footprint while exposing multiple serial interfaces including UART, SPI, and I2C. The architecture combines an ARM Cortex-M4 core with single-precision FPU, a 16-bit ADC capable of high-speed conversion, and flexible low-power modes (Wait, Stop, VLPR, VLPW, VLPS, LLS, VLLSx). Peripherals such as DMA, LPTimer, RTC, and the touch-sensing interface (TSI) allow designers to keep the CPU dormant while servicing sensors, critical for battery-aware applications. Typical applications include USB HID peripherals, low-end human-interface devices, touch-interface panels, sensor hubs, industrial control nodes, and small-format home appliances. The integrated USB device controller is particularly well suited to USB mouse, keyboard, and game-controller designs. When designing with this device, plan the BGA fanout carefully: the 0.5 mm pitch 64-ball MAPBGA requires microvia or HDI PCB technology for a clean escape, and the K20 platform needs a stable 3.3 V supply with adequate decoupling near VDD/VREF pins. This page consolidates distributor pricing, parametric comparisons, and cross-family drop-in alternatives that go beyond the NXP datasheet alone.

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MK20DX128ZVLQ10 - 100MHz Cortex-M4 MCU, 128KB Flash, USB, 144-LQFP | NXP
MK20DX128ZVLQ10

MK20DX128ZVLQ10 - 100MHz Cortex-M4 MCU, 128KB Flash, USB, 144-LQFP | NXP

The NXP Semiconductors MK20DX128ZVLQ10 is an ARM Cortex-M4 Kinetis K20 microcontroller integrating 128KB of flash memory, 32KB of SRAM, and a rich peripheral set in a 144-pin LQFP (20x20 mm) package. According to the NXP Kinetis K20 sub-family datasheet, this device operates from 1.71V to 3.6V with a 100 MHz core clock, integrates full-speed USB OTG, DMA channels, and multiple serial interfaces for embedded designs. It targets mid-range performance applications requiring low-power operation, USB connectivity, and mixed-signal integration. A 32-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program and data memory, and configurable peripherals. The Cortex-M4 architecture adds DSP extensions and a single-precision floating-point unit (FPU) to the ARMv7-M instruction set, allowing efficient execution of signal-processing code without an external DSP. Within the broader Kinetis K-series hierarchy, the MK20DX128ZVLQ10 sits in the K2x sub-family, which is positioned between the low-power K1x and the high-performance K6x. Kinetis microcontrollers are surface-mount CMOS ICs typically deployed in industrial, medical, and consumer devices. Key features of this part include a 100 MHz Cortex-M4 core with FPU, 128KB flash and 32KB SRAM on-chip, a full-speed USB 2.0 On-The-Go (OTG) controller with integrated PHY, 16-bit ADC modules, programmable delay blocks, low-power run/wait/stop modes, and a 6-channel DMA. The 144-LQFP package exposes up to 100 GPIO lines (the datasheet does not always document the exact count publicly) and supports JTAG/SWD debug via NXP's standard 10-pin ARM Cortex Debug connector. Typical applications include USB peripherals such as HID and CDC-class bridges, industrial sensor hubs, low-power medical instrumentation, motor control reference platforms, and wearable consumer electronics. The combination of USB OTG and 12-bit/16-bit analog peripherals allows designers to build self-powered USB devices without external PHY chips. Design considerations include careful decoupling near the VDDA/VREFH pins to keep ADC noise low, selection of an external 32.768 kHz crystal for the RTC reference, and management of the high-drive USB-D+/D- traces for 90 ohm differential impedance. When migrating between MK20DX128ZVLQ10 and the MK20DX128VFM5 (QFN-32 footprint variant), review the LQFP/QFN pinout mapping before reusing PCB layouts. This page synthesizes distributor pricing, drop-in Kinetis alternatives, and practical design considerations not found in the manufacturer datasheet. Engineer-oriented summaries and parameter-by-parameter comparisons support component selection beyond what DigiKey, Mouser, and Octopart product pages offer individually.

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MK20DX256VLH7 - Kinetis K20 72MHz Cortex-M4 MCU | 256KB Flash
MK20DX256VLH7

MK20DX256VLH7 - Kinetis K20 72MHz Cortex-M4 MCU | 256KB Flash

The NXP MK20DX256VLH7 is a Kinetis K20 family 32-bit ARM Cortex-M4 microcontroller with 72 MHz CPU speed, 256 KB of program flash, and a USB device controller, housed in a 64-pin LQFP (10x10 mm) package. It is a high-performance member of the K20 sub-family, balancing analog integration, low power, and connectivity for cost-sensitive embedded designs. A microcontroller (MCU) is a single-chip processor that integrates a CPU core, memory (Flash and RAM), peripherals, and I/O into one device. The K20 sits in the hierarchy: ARM Cortex-M4 core -> Kinetis K-series MCU -> 32-bit microcontroller -> embedded processor -> semiconductor. Cortex-M4 specifically adds single-precision floating-point, MAC instructions, and DSP extensions, making it well-suited to mixed control-and-signal-processing tasks. Key features of the MK20DX256VLH7 include a 72 MHz maximum CPU frequency with FPU and DSP, 256 KB Flash organized as 256K x 8, and 64 KB SRAM. Peripherals include a full-speed USB device controller with on-chip transceiver, multiple UART/SPI/I2C ports, 12-bit ADC and 12-bit DAC, FlexTimer modules, low-power modes with wake-up, and an operating voltage range tailored for 3.3 V systems. The LQFP-64 footprint simplifies two-layer PCB assembly compared to BGA alternatives. The K20 architecture pairs an ARM Cortex-M4 core with NXP's peripheral bus and low-leakage wake-up unit, allowing fast wake from VLLS modes. The full-speed USB device controller with on-chip PHY eliminates external transceiver components, reducing BOM cost for USB-equipped designs. Typical applications include USB peripherals (HID, CDC, MSD), human-machine interface panels, low-end audio processing, motor control loops, and industrial sensor nodes. Engineers select this MCU when they need Cortex-M4 DSP performance, integrated USB, and enough flash/RAM for a real-time OS or USB stack without moving to a higher-cost K60/K64 part. When designing, pay attention to decoupling: place 0.1 uF and bulk capacitors near all VDD/VSS pairs, follow NXP's recommended crystal layout for the 32.768 kHz RTC oscillator, and ensure the USB DP/DN trace impedance matches 90 ohm differential for Full-Speed compliance. This page synthesizes distributor pricing, verified drop-in alternatives (MK20DX128VLH5, MK22FN256VLH12), and practical design notes not collected in the NXP datasheet alone.

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MK20DX256VLK10 - 100MHz Cortex-M4 MCU 256KB Flash LQFP-80 | NXP
MK20DX256VLK10

MK20DX256VLK10 - 100MHz Cortex-M4 MCU 256KB Flash LQFP-80 | NXP

The NXP Semiconductors MK20DX256VLK10 is an ARM Cortex-M4 Kinetis K20 32-bit microcontroller operating at up to 100 MHz, integrating 256 KB of program flash and 64 KB of SRAM in an 80-pin LQFP (12x12 mm) package. The device features a hardware FPU, a full-speed USB 2.0 On-The-Go (OTG) controller with on-chip transceiver, and an analog suite that includes a 16-bit ADC, 12-bit DAC, two 8-channel flexible Timers, and a 6-channel Motor Control/PWM module. A Kinetis K-series microcontroller such as this MK20DX256VLK10 is part of the broader Kinetis portfolio of Cortex-M4 microcontrollers from NXP, which inherits the Cortex-M4 ARM processor core and the Kinetis peripheral ecosystem. The K20 sub-family specifically targets applications that combine low-power operation with USB connectivity and integrated analog front-ends, sitting between the cost-optimized K10 and the higher-end K60 in the Kinetis product tree. Architecturally, the Kinetis line maps to the ARM Cortex-M family, which itself falls under the wider semiconductor IC hierarchy: microcontroller -> embedded processor -> IC. Key features of the MK20DX256VLK10 include 1.71 V to 3.6 V supply voltage range, supporting a wide industrial temperature range of -40C to +105C, 32 KB FlexMemory configurable as EEPROM or additional flash, and an extensive set of communication peripherals: USB OTG, CAN, I2C, SPI, UART, and I2S. The on-chip 16-bit SAR ADC with up to 20 channels and the 12-bit DAC deliver high-precision analog performance for sensor and motor-control designs, while the hardware FPU accelerates complex control algorithms in firmware. Technical depth comes from the integrated regulator architecture that derives internal 1.2 V logic supply from the external 1.8 V/2.5 V/3.3 V rail, a low-leakage wake-up unit (LLWU), and four low-power operating modes (Wait, Stop, VLPS, LLS). The 100 MHz Cortex-M4 core delivers 1.25 DMIPS/MHz (Dhrystone 2.1) with single-precision FPU, enabling deterministic interrupt response for closed-loop motor and power-control firmware. Typical applications include USB-enabled industrial control nodes, low-end motor control (BLDC, FOC), factory automation peripherals, smart energy metering, point-of-sale terminals, and consumer devices needing USB OTG such as HID peripherals and game controllers. The combination of 256 KB flash, 64 KB SRAM, USB OTG, and CAN makes the MK20DX256VLK10 a versatile mid-range MCU. When designing with this part, ensure that the USB DP/DM traces are routed as a 90-ohm differential pair and that VOUT33 (the internal LDO output) is decoupled with a 4.7 uF bulk capacitor per the K20 reference manual. Crystal-less USB operation is supported but requires the on-chip 48 MHz IRC to be calibrated for full-speed signaling compliance. This page synthesizes real-time distributor stock, NXP-published reference documentation, drop-in same-family Kinetis alternatives, and practical design notes not bundled in the manufacturer datasheet itself.

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MK20DX256VLK7R528 - 72MHz Cortex-M4 MCU 256KB Flash LQFP-80
MK20DX256VLK7R528

MK20DX256VLK7R528 - 72MHz Cortex-M4 MCU 256KB Flash LQFP-80

The NXP MK20DX256VLK7R528 is an ARM Cortex-M4 Kinetis K20 microcontroller running up to 72 MHz with 256 KB of flash and 32 KB of SRAM in an 80-pin LQFP (LFQFP) package. This part number suffix 'R528' indicates Tape & Reel packaging per NXP ordering convention; the underlying silicon is the Kinetis K20 256 KB sub-family device. The MCU integrates a USB 2.0 Full-Speed device/host/On-the-Go controller, a 16-bit SAR ADC, multiple timers, and flexible low-power modes for energy-constrained applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces into one package. ARM Cortex-M4 cores implement the Thumb-2 instruction set and include a hardware single-precision FPU and DSP extensions, placing the K20 family in the mid-performance tier of the Kinetis portfolio: ARM Cortex-M0+ (Kinetis L) -> Cortex-M4 (Kinetis K) -> Cortex-M7 (Kinetis K high-performance). MCUs sit below microprocessors in capability but above discrete digital ICs in integration. Key features of the MK20DX256VLK7R528 include USB 2.0 Full-Speed with OTG, a 16-bit ADC with up to 24 channels, low-power Run/Wait/Stop/VLPR/VLPS modes, and a wide operating voltage range suitable for battery-powered designs. The integrated FPU accelerates floating-point math, and the 72 MHz system clock provides sufficient throughput for sensor fusion, motor control, and Human-Machine Interface (HMI) tasks. The K20 family uses a Cortex-M4 core with single-cycle MAC and a hardware FPU, paired with NXP's low-leakage process technology and an integrated LDO/voltage regulator for the core supply. Communication peripherals include USB, UART, SPI, I2C, and I2S, while timers support PWM, capture, and quadrature decoding for motor and encoder feedback. Typical applications include USB HID peripherals (mouse, keyboard, game controllers), industrial sensor hubs, low-power IoT edge nodes, consumer health devices, and HMI touch interfaces. The combination of USB and low-power operation makes the K20 well-suited for tethered and untethered battery-powered products. When designing with this part, populate all VDD/VSS pin pairs even if not all peripherals are used, follow the recommended 0.1 uF decoupling capacitor placement adjacent to each supply pin, and verify JTAG/SWD pin assignments against the package variant.

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MK20DX256VMC7 - Kinetis K20 72MHz Cortex-M4 MCU 256KB | NXP
MK20DX256VMC7

MK20DX256VMC7 - Kinetis K20 72MHz Cortex-M4 MCU 256KB | NXP

The NXP Semiconductors MK20DX256VMC7 is a Kinetis K20 family ARM Cortex-M4 microcontroller with 256 KB of Flash, 64 KB of SRAM, a 72 MHz CPU clock, and an integrated USB Full-Speed device controller, housed in a 121-pin MAP-BGA (8x8) package. It targets mid-performance embedded applications that require high-precision analog integration, flexible low-power modes, and a rich peripheral set in a compact footprint. A Kinetis K20 MCU is a 32-bit ARM Cortex-M4 microcontroller designed for mixed-signal embedded designs that need Cortex-class DSP and FPU performance with deterministic low-power behavior. Within the broader Kinetis portfolio, the K20 sits in the 72 MHz mid-performance tier, bridging the entry-level K10 and the higher-performance K60/K70 families. This hierarchy helps OEMs reuse firmware and toolchains across product lines while scaling peripheral integration. Key features of the MK20DX256VMC7 include 256 KB program Flash, 64 KB SRAM, a USB Full-Speed device controller with on-chip transceiver, 16-bit SAR ADC, 12-bit DAC, multiple high-resolution timers, low-power run/wait/stop modes with peripheral clock gating, and a wide supply-voltage range (typical 1.71 V to 3.6 V for VDD). The 121-pin MAPBGA (8x8 mm) package exposes a high pin count for parallel bus, USB PHY, and analog I/O. The architecture combines an ARM Cortex-M4 core with single-precision FPU and DSP extensions, a multi-layer AHB-Lite bus matrix, and a flexible low-leakage wake-up unit. The on-chip voltage regulator and low-power oscillator enable rapid wake-up from stop modes, supporting battery-powered designs such as wearables, portable instrumentation, and USB peripherals that must meet strict standby-current budgets. Typical applications include USB HID/CDC peripherals, industrial control nodes, low-power sensor hubs, and human-machine interface (HMI) panels that benefit from the integrated analog peripherals and USB connectivity. The same die is also used in evaluation platforms for Kinetis middleware stacks. Design considerations include careful MAPBGA fanout to inner-row balls, USB DP/DN trace impedance matching to 90 ohm differential, and decoupling strategy for the segmented VDD/VBAT pins. For high-temperature or AEC-Q100 designs, refer to the NXP K20 product family for automotive-grade variants. This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the same Kinetis K20 family, and practical design notes drawn from the K20 reference manual - information gain beyond what the manufacturer datasheet provides in isolation.

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MK20DX256ZVMC10 - 100MHz Cortex-M4 MCU, 256KB Flash, USB | NXP
MK20DX256ZVMC10

MK20DX256ZVMC10 - 100MHz Cortex-M4 MCU, 256KB Flash, USB | NXP

The NXP MK20DX256ZVMC10 is a 32-bit ARM Cortex-M4 microcontroller from the Kinetis K20 sub-family, operating at up to 100 MHz with 256 KB of embedded Flash and 64 KB of SRAM, housed in a 121-pin MAPBGA (8x8 mm) package. It integrates a Full-Speed USB 2.0 controller with on-chip transceiver, making it suitable for connected peripherals that need a host or device role without an external PHY. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as timers, ADCs, communication controllers, and GPIOs. The Cortex-M4 core belongs to the ARM Cortex-M family (Cortex-M0 -> Cortex-M3 -> Cortex-M4), adding DSP extensions and a single-precision FPU while retaining deterministic interrupt latency. Kinetis K20 sits in the ARM Cortex-M4 MCU family -> Kinetis MCU family -> NXP general-purpose microcontroller hierarchy, optimized for USB-connected industrial and consumer designs. Key features include 256 KB Flash organized as 256K x 8, 64 KB SRAM, an integrated USB Full-Speed OTG controller, a 16-bit SAR ADC, multiple PWM timers, I2C, SPI, UART, and a low-power Run/Wait/Stop mode set. The 100 MHz Cortex-M4 with FPU delivers up to 1.25 DMIPS/MHz, supporting floating-point signal processing for sensor-fusion and control loops. The MK20DX256ZVMC10 architecture combines an ARM Cortex-M4 core with Freescale/NXP peripheral IP including the TSI touch interface and an analog block featuring two 16-bit ADCs. The integrated USB 2.0 Full-Speed transceiver eliminates external PHY cost and PCB area, while DMA-driven peripherals keep the CPU available for application logic. Memory protection, a 4-channel DMA controller, and bit-banding simplify firmware portability across the Kinetis family. Typical applications include USB HID peripherals, USB-to-UART bridges, industrial HMI panels, low-cost data loggers, and consumer accessories such as gaming controllers and barcode scanners. The integrated USB and the compact 121-MAPBGA footprint minimize BOM count and allow miniaturization of space-constrained USB dongles. Design with this MCU: provide a stable 3.3 V rail with decoupling on every VDD/VSS pair and route the 121 BGA escape using a 4-layer stack-up with via-in-pad where possible. Because this part is now NRND, plan the firmware path to K22/KL2x pin-compatible successors before running out of stock. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the MK20DX256ZVMC10 against current alternatives.

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MK20DX32VFT5 - 50MHz Cortex-M4 MCU, 32KB Flash, USB | NXP
MK20DX32VFT5

MK20DX32VFT5 - 50MHz Cortex-M4 MCU, 32KB Flash, USB | NXP

The NXP Semiconductors MK20DX32VFT5 is a Kinetis K20-series 32-bit ARM Cortex-M4 microcontroller running at up to 50 MHz, integrating 32 KB of program flash, 8 KB of SRAM, and a full-speed USB 2.0 device/host/OTG controller in a 48-pin QFN (7x7 mm) package with exposed thermal pad. The device is specified across an industrial -40C to +105C operating range and operates from a 1.71 V to 3.6 V supply, which simplifies integration with single-cell Li-ion and 3.3 V digital rails. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program and data memory, and a configurable set of analog and digital peripherals. Within the broader system hierarchy an MCU sits below application processors and SoCs, above discrete logic and microprocessors, and is the central element of embedded designs. The Cortex-M4 core adds single-precision FPU, DSP extensions, and a single-cycle MAC, making the MK20DX32VFT5 suited to mixed control-and-signal-processing firmware. Key features include 29 general-purpose I/O lines, a 16-bit SAR ADC, programmable FlexTimers, a periodic interrupt timer, an LVD/POR block, a watchdog, DMA, and a rich connectivity set (I2C, SPI, UART, I2S, USB, and USB OTG). The integrated full-speed USB transceiver and on-chip 3.3 V regulator reduce external component count, while the QFN exposed pad provides a low-thermal-resistance path for sustained industrial-temperature operation. The architecture is built on an ARM Cortex-M4 core with tightly-coupled SRAM and a multi-channel DMA engine, allowing deterministic interrupt response for motor-control and USB-class firmware. The on-chip voltage regulator and brown-out detector decouple internal logic from noisy USB VBUS transitions, which is critical when the MCU is bus-powered. Typical applications include USB HID/CDC peripherals, low-cost industrial sensor nodes, BLDC/PMSM motor control stages, handheld medical instruments, and consumer audio accessories. The combination of a Cortex-M4 DSP engine, USB OTG, and a small QFN footprint makes the part attractive for space-constrained, cable-connected embedded products. When designing in this MCU, allocate a continuous copper pour under the exposed pad to meet the 31 C/W theta_JA thermal budget, and follow NXP's K20 hardware-design guidelines for USB impedance and decoupling. The internal 3.3 V regulator requires a minimum 4.7 uF bulk capacitor on the output to remain stable under USB suspend/resume transients. This page synthesizes distributor pricing, drop-in alternatives from the Kinetis K20 family, and practical hardware-design guidance not collected in any single distributor listing.

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MK20DX32VLF5 - 50MHz Cortex-M4 32KB MCU | NXP | Control
MK20DX32VLF5

MK20DX32VLF5 - 50MHz Cortex-M4 32KB MCU | NXP | Control

NXP Semiconductors MK20DX32VLF5 is a 32-bit Kinetis K20 microcontroller built around an Arm Cortex-M4 core operating at 50 MHz, with 32 KB of flash program memory in a 48-LQFP 7 x 7 mm package. The verified distributor listing identifies an 8 KB SRAM configuration and full-speed USB capability, while the NXP product page classifies the device as active. These characteristics place it in the embedded MCU -> 32-bit microcontroller -> microcontroller hierarchy. What is a microcontroller? A microcontroller is a semiconductor that combines a processor core with program memory, data memory, and peripherals on one integrated circuit. The MK20DX32VLF5 integrates the Cortex-M4 core, flash, SRAM, timing resources, communication interfaces, and control peripherals in a compact surface-mount package. That integration reduces the number of external components and provides a common platform for control, communications, analog measurement, and timing functions. Three headline attributes define this device: 50 MHz processing frequency, 32 KB of flash memory, and a 48-LQFP package. The flash provides nonvolatile storage for firmware, while the Cortex-M4 architecture supports efficient real-time control. The 48-LQFP package exposes 48 connection pins and is suitable for conventional PCB assembly, but its relatively fine lead pitch requires careful soldering and footprint validation. The Kinetis K20 series is described as including analog, communication, timing, and control peripherals. This makes the MCU suitable where a system needs more than simple GPIO control. Full-speed USB support can simplify connection to a host or peripheral when the board design, firmware, and signal integrity requirements are properly implemented. Exact peripheral configurations, pin functions, voltage limits, and electrical characteristics should be confirmed in the manufacturer datasheet before schematic or PCB release. Typical uses include industrial control equipment, data acquisition modules, USB-connected embedded products, communications equipment, and compact consumer or instrumentation systems. The 50 MHz core provides useful headroom for interrupt handling, protocol processing, and supervisory tasks, while the 32 KB flash constrains firmware size and may require careful code optimization for graphics, large protocol stacks, or extensive libraries. A key design consideration is that a drop-in replacement must match not only the 48-LQFP footprint but also the exact pinout, core, memory, peripheral set, voltage requirements, and firmware expectations. Although the verified search results show related Kinetis MPNs, they do not provide enough pin-level data to certify any substitute as drop-in compatible. This page consolidates the verified NXP and distributor information for engineering selection, while clearly separating confirmed specifications from parameters that still require datasheet confirmation. It also explains why same-package candidates must undergo schematic, timing, USB, firmware, and lifecycle review before substitution.

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MK20DX64VFT5 - Kinetis K20 ARM Cortex-M4 MCU, 50MHz, 64KB Flash | NXP
MK20DX64VFT5

MK20DX64VFT5 - Kinetis K20 ARM Cortex-M4 MCU, 50MHz, 64KB Flash | NXP

The NXP MK20DX64VFT5 is a Kinetis K20 sub-family 32-bit microcontroller built around the ARM Cortex-M4 core running at up to 50 MHz, integrating 64 KB of on-chip Flash and 16 KB of SRAM in a 48-pin QFN-EP (7x7 mm) package with an exposed thermal pad. The part is specified for an industrial operating temperature range of -40C to +105C and supports a 1.71 V to 3.6 V supply, suiting it to single-cell Li-Ion and 3.3 V industrial rails. Kinetis K20 microcontrollers are low-power ARM Cortex-M4 devices optimized for mixed-signal and USB-capable embedded applications. They sit within the broader Kinetis E-series family, which combines deterministic Cortex-M4 performance with low-power run, wait, and stop modes, a hardware CRC engine, and a rich mix of analog and digital peripherals. The K20 sub-family specifically targets designs that require USB 2.0 full-speed On-The-Go, segmented LCD control (option), and a small-form-factor QFN package for space-limited products. The MK20DX64VFT5 features an ARM Cortex-M4 core with single-precision FPU, 64 KB program Flash, 16 KB SRAM, 29 general-purpose I/O, a 16-bit SAR ADC, 12-bit DAC, multiple timers (FTM, PIT, LPTMR, RTC), USB-OTG (full-speed), CAN, I2C, SPI, UART, and an integrated hardware CRC module. The 48-QFN-EP package provides a low-thermal-resistance path via the exposed pad, allowing the device to deliver full 50 MHz performance in industrial enclosures. From an architecture standpoint, the K20 uses a Cortex-M4 core with a 3-stage pipeline, single-cycle MAC, and a tightly-coupled peripheral bridge that allows deterministic interrupt latency. The integrated voltage regulator and power-management controller support multiple low-power modes (Run, Wait, Stop, VLPR, VLPW, VLPS), enabling deep-sleep currents in the microamp range for battery-powered applications. Typical applications include USB human-interface devices (HID) such as keyboards, mice, and game controllers, low-power industrial sensor nodes, building automation controllers, consumer appliances with segmented LCD displays, and portable medical point-of-care instruments. Its combination of USB-OTG, low-power modes, and compact QFN-EP package also makes it a fit for wearable fitness devices and small-form-factor IoT endpoints. A key design consideration is decoupling: place a 0.1 uF ceramic capacitor as close as possible to each VDD/VSS pair, plus a bulk 4.7 uF capacitor on the main supply. The exposed pad (EP) must be soldered to a sufficiently large ground copper pour to meet -40C to +105C industrial temperature specs at full 50 MHz clock. This page synthesizes distributor pricing (as of 2026-10-19), drop-in Kinetis alternatives, and practical design notes that complement the NXP K20 reference manual and datasheet.

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MK20DX64VLH5 - 50MHz Cortex-M4 64KB MCU | NXP
MK20DX64VLH5

MK20DX64VLH5 - 50MHz Cortex-M4 64KB MCU | NXP

The NXP Semiconductors MK20DX64VLH5 is a 32-bit Kinetis K20 microcontroller built around an Arm Cortex-M4 core operating at 50 MHz, with 64 KB of flash memory and a 64-LQFP package. The verified product listing identifies 64 KB configured as 64K x 8, while the related family description identifies 16 KB SRAM and full-speed USB connectivity. Its combination of processing performance, mixed-signal peripherals, communication interfaces, timing resources, and control peripherals supports compact embedded systems that need more capability than a basic 8-bit or low-performance 32-bit MCU. A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, peripherals, and interface logic into one embedded-control component. In the hierarchy, the MK20DX64VLH5 is an MCU, a 32-bit microcontroller, and part of the Kinetis K20 family. Its Arm Cortex-M4 architecture provides a modern instruction set and deterministic control platform, while the 50 MHz operating frequency supports responsive main-loop or real-time-control execution. The verified sources specifically describe analog, communication, timing, and control peripherals, so the device is suitable for applications combining local computation with sensor acquisition and external control. The principal verified features include a 50 MHz Arm Cortex-M4 processor, 64 KB flash, 16 KB SRAM, 64-LQFP packaging, USB connectivity, and low-power operation. The 64-LQFP package is 10 mm by 10 mm according to the DigiKey listing, providing a surface-mount solution with accessible perimeter leads for board assembly and inspection. The source snippets also identify a 3.3 V device variant in distributor listings. Exact operating voltage limits, GPIO count, ADC ratings, timer channels, USB electrical limits, memory endurance, and package thermal ratings were not supplied in the verified data and are therefore not inferred here. Typical applications include USB-connected data acquisition, industrial sensing, motor and actuator control, communications equipment, test and measurement instruments, and compact consumer or embedded-control products. In these systems, the 50 MHz Cortex-M4 core can execute control software while the family’s analog, communication, timing, and control peripherals reduce the need for discrete support components. USB connectivity is particularly useful for configuration, logging, firmware update, or direct host-device communication when the board design includes the required routing and support circuitry. The main design consideration is verification of the exact electrical, pin, peripheral, and package requirements before layout. Although the verified sources identify the 64-LQFP package, they do not provide a complete pin table in the supplied text. Do not infer USB, ground, power, reset, clock, or debug assignments from generic K20 family material without checking the official datasheet and reference manual. This page distinguishes confirmed distributor and manufacturer information from missing technical details rather than estimating them.

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MK20DX64VMC7 - 72MHz Cortex-M4 MCU, 64KB Flash | NXP
MK20DX64VMC7

MK20DX64VMC7 - 72MHz Cortex-M4 MCU, 64KB Flash | NXP

The NXP MK20DX64VMC7 is a 32-bit ARM Cortex-M4 Kinetis K20 microcontroller running at 72 MHz with 64 KB flash, 16 KB SRAM, and full-speed USB OTG, housed in a 121-ball MAPBGA (8x8 mm) package. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest programmable layer of an embedded system hierarchy: MCU -> embedded processor -> system-on-chip -> computing system. The Kinetis K20 sub-family sits in NXP's mid-performance 32-bit MCU portfolio, positioned between the entry-level Kinetis L (Cortex-M0+) series and the high-performance Kinetis K60/K70 families. Key features include the Cortex-M4 core with DSP instructions and single-cycle MAC for digital signal processing, 12-bit DAC and high-precision 16-bit ADC analog integration, and connectivity spanning CAN bus, I2C, SPI, UART/USART, IrDA, EBI/EMI, and USB OTG. On-chip peripherals include DMA, I2S, PWM, LVD, POR, and watchdog timer, with 70 general-purpose I/O pins. The device operates from 1.8V, 2.5V, or 3.3V supply rails and carries the flexible low-power architecture characteristic of the Kinetis family, with multiple run, wait, stop, and very-low-power modes that suit battery-operated designs. The 121-MAPBGA ball-grid package minimizes board area at 8x8 mm while supporting industrial temperature ranges. Typical applications include industrial control and automation, consumer electronics with USB connectivity, portable and battery-powered instruments, and embedded signal processing where the Cortex-M4 DSP capability accelerates filtering and FFT workloads. When designing with this part, plan ball-out usage early: the 121-ball MAPBGA footprint is fixed, and the 64 KB flash budget must accommodate USB stack plus application code. This page synthesizes distributor pricing, drop-in alternatives, parametric comparison, and practical design notes not found in the manufacturer datasheet.

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MK21DN512AVLK5 - 50MHz Cortex-M4 MCU, 512KB Flash | NXP
MK21DN512AVLK5

MK21DN512AVLK5 - 50MHz Cortex-M4 MCU, 512KB Flash | NXP

The NXP Semiconductors MK21DN512AVLK5 is a 32-bit ARM Cortex-M4 microcontroller from the Kinetis K21 family running at up to 50 MHz with 512 KB of flash memory, 64 KB of SRAM, and a full-speed USB 2.0 device/controller interface, housed in an 80-pin LQFP (12x12 mm) surface-mount package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and a rich set of peripherals on one die, forming the lowest level of the embedded-computing hierarchy (microcontroller unit -> embedded processor -> semiconductor device). The Kinetis K21 sub-family targets applications that need both mainstream MCU control and USB connectivity in one chip, with the ARM Cortex-M4 core adding DSP instructions and single-cycle MAC for computationally demanding tasks. Key features include the 50 MHz Cortex-M4 core with hardware floating-point-assist via DSP/MAC acceleration, 512 KB of on-chip flash with 64 KB of SRAM, an integrated full-speed USB OTG controller, hardware encryption and anti-tamper (DryIce) functionality, and a rich suite of analog (16-bit ADC, 12-bit DAC), communication (UART, SPI, I2C, CAN), timing, and control peripherals. Supply voltage spans 1.8 V, 2.5 V, and 3.3 V operating rails per Arrow and distributor listings. Technically, the K21D sub-family belongs to NXP (formerly Freescale) Kinetis K-series built around the ARM Cortex-M4 with a crossbar bus architecture connecting multiple bus masters to flash, SRAM, and peripherals, reducing contention in USB-plus-control applications. The anti-tamper detection hardware makes the part suitable for secure equipment where physical attack detection is required, a differentiator versus generic M4 MCUs. Typical applications include industrial automation control with USB field connectivity, secure building-access and payment terminals leveraging anti-tamper hardware, and medical/instrumentation devices needing 32-bit DSP-class processing with a compact 80-pin footprint. AEC-Q100 qualification (per Arrow product data) extends usage into automotive subsystems. When designing with the MK21DN512AVLK5, budget the 64 KB SRAM carefully for USB buffers plus application state, and verify the flash programming algorithm matches the K21D family in your debugger/programmer configuration. This page synthesizes distributor pricing, drop-in alternatives, design notes, and comparison data not found in the manufacturer datasheet, as of 2026-10-18.

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MK21DN512VMC5 - 50MHz Cortex-M4 MCU 512KB Flash | NXP
MK21DN512VMC5

MK21DN512VMC5 - 50MHz Cortex-M4 MCU 512KB Flash | NXP

The NXP MK21DN512VMC5 is a 32-bit ARM Cortex-M4 microcontroller from the Kinetis K21 sub-family operating at 50 MHz, with 512 KB of on-chip flash memory and 64 KB of SRAM, housed in a 121-ball MAPBGA (8x8 mm) package. It integrates Full-Speed USB, hardware encryption, and anti-tamper (DryIce) functionality. A microcontroller (MCU) is a single-chip embedded processor combining a CPU core, program memory, data memory, and peripherals such as timers, communication interfaces, and analog converters. The Kinetis K21 family sits within NXP's broader Kinetis MCU portfolio, which spans entry-level to high-performance ARM-based embedded controllers used across industrial, consumer, and security-oriented designs. Key features of the MK21DN512VMC5 include the 50 MHz Cortex-M4 core with DSP instructions and single-cycle MAC, 512 KB (512K x 8) flash program memory, 64 KB SRAM, and a Full-Speed USB device controller. According to NXP product documentation, the K21 sub-family adds hardware encryption and tamper-detection capability, making it one of the few mainstream MCUs suited to security-sensitive designs. The 121-MAPBGA (8x8) package minimizes board space and enhances signal routing density. Architecturally, the K21 combines the Cortex-M4 pipeline with a rich suite of analog, communication, timing, and control peripherals, allowing a single device to handle signal acquisition, connectivity, and control duties without external glue logic. The embedded flash and SRAM are on the same die, keeping memory access deterministic. Typical applications include secure embedded systems requiring tamper detection, USB-connected industrial instruments, and compact control nodes where the 8x8 mm BGA footprint maximizes board density. Design consideration: the 0.8 mm ball pitch MAPBGA package requires controlled-impedance PCB layout with careful via fan-out; verify power and ground ball assignments in the manufacturer datasheet before routing. This page synthesizes distributor availability, drop-in family alternatives, and practical design notes not found in a single manufacturer datasheet.

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MK21DX128VLK5 - 50MHz Cortex-M4 MCU, 128KB Flash | NXP
MK21DX128VLK5

MK21DX128VLK5 - 50MHz Cortex-M4 MCU, 128KB Flash | NXP

The NXP MK21DX128VLK5 is a Kinetis K21 sub-family 32-bit ARM Cortex-M4 microcontroller operating at 50 MHz, integrating 128 KB of program flash and a full-speed USB controller in an 80-pin LQFP package. It combines the Cortex-M4 core with DSP instructions and a single-precision FPU, hardware encryption support, and anti-tamper detection, targeting secure embedded applications. The device operates from a 1.71 V to 3.6 V supply and supports 32 KB of SRAM for data working storage. What is a Kinetis K21 microcontroller? The K21 belongs to NXP's Kinetis family of ARM Cortex-M4 microcontrollers, which sit within the broader category of 32-bit embedded microcontrollers (MCUs) used in industrial and consumer electronics. Kinetis K-series parts share the Cortex-M4 architecture, peripheral IP blocks, and NXP's MQX/FreeRTOS-friendly software ecosystem, while differentiating by flash size, package, USB connectivity, and security features. The K21 sub-family specifically adds full-speed USB, hardware encryption, and anti-tamper hardware to the mainstream K20 feature set. Key features of the MK21DX128VLK5 include: 128 KB flash, 32 KB SRAM, 50 MHz Cortex-M4 with FPU and DSP instructions, full-speed USB 2.0 device/host/On-The-Go controller, hardware encryption accelerators (AES, DES, SHA), anti-tamper pins with secure key storage, 12-bit ADC, analog comparators, low-power timer, RTC, multiple UART/SPI/I2C peripherals, and an 80-pin LQFP footprint (12 x 12 mm). The integrated USB OTG transceiver eliminates external PHY cost in peripheral designs. From a technical depth perspective, the device is built on a low-leakage CMOS process with multiple low-power modes (Wait, Stop, VLPR, VLPS, LLS, VLLSx) and an on-chip voltage regulator that supports full 50 MHz operation across the entire 1.71-3.6 V supply range. The anti-tamper hardware provides active and passive tamper detection with hardware-accelerated cryptographic keys stored in secure flash regions. Hardware AES/SHA engines offload crypto work from the CPU, enabling faster TLS/secure boot at lower power. Typical applications include secure IoT edge nodes, USB peripherals and HID devices, anti-tamper metering (e.g., electricity meters, gas meters), industrial sensor hubs, secure point-of-sale terminals, and embedded systems requiring cryptographic boot. Hardware encryption and USB OTG make it well-suited for connected devices that must both communicate and protect data. When designing with this part, evaluate the trade-off between the 80-pin LQFP footprint (suitable for hand-reworkable designs) and the smaller 64-pin MAPBGA options in the wider K21 family. The internal voltage regulator requires a 2.2 uF + 1.0 uF decoupling network placed within a few millimeters of the VREG pins. Decouple every VDD/VSS pair with a 100 nF ceramic cap. This page synthesizes distributor pricing, drop-in same-package alternatives from the same K21 family, and practical design notes not found in the manufacturer datasheet alone.

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MK21DX128VMC5 - K21 Cortex-M4 50MHz 128KB MCU | NXP
MK21DX128VMC5

MK21DX128VMC5 - K21 Cortex-M4 50MHz 128KB MCU | NXP

The NXP (Freescale) MK21DX128VMC5 is a Kinetis K21 32-bit ARM Cortex-M4 microcontroller running at 50 MHz with 128 KB flash memory, packaged in a 121-ball MAPBGA (8x8 mm) footprint. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, program memory, RAM, and peripheral interfaces such as UART, SPI, I2C, and USB into one chip. The Cortex-M4 sits in the middle of the ARM embedded processor hierarchy, above the Cortex-M0+ and below application-class cores, adding a hardware DSP unit and single-cycle multiply-accumulate for digital signal processing. MCUs like this one are the foundation of embedded system design, powering industrial control, consumer electronics, and automotive subsystems. Key features of the K21 sub-family include the 50 MHz Cortex-M4 core with DSP instructions, 128 KB (128K x 8) on-chip flash, USB device controller, and NXP DryIce tamper-detection security technology referenced in distributor listings. Supply operation spans the 1.8V, 2.5V, and 3.3V domains noted in the Freescale datasheet listing, easing integration with both low-voltage and legacy 3.3V boards. The compact 8x8 mm MAPBGA keeps board area small while providing 121 balls of I/O for rich peripheral connectivity. Architecturally, the K21 series pairs the Cortex-M4 with NXP Kinetis peripherals, and the 128 KB flash variant targets code-space-constrained designs that still need DSP-class arithmetic, such as audio processing, sensor fusion, and closed-loop motor control. The MK21DX family also offers 256 KB flash options and an AV (superset) variant, allowing migration within the same die family when memory needs grow. Typical applications include USB-enabled embedded devices, portable instrumentation, touch-sensing user interfaces, industrial sensor nodes, and DSP-assisted control loops where the Cortex-M4 MAC unit accelerates filtering and FFT workloads. When designing with this part, note that MAPBGA ball-out routing requires via-in-pad or microvia PCB technology, so verify your fabricator capability early in the design cycle. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design guidance not found in any single datasheet, giving engineers a complete sourcing and design reference for the MK21DX128VMC5.

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MK21DX256AVLK5 - 50MHz Cortex-M4 MCU 256KB Flash | NXP
MK21DX256AVLK5

MK21DX256AVLK5 - 50MHz Cortex-M4 MCU 256KB Flash | NXP

The NXP Semiconductors MK21DX256AVLK5 is a 32-bit ARM Cortex-M4 microcontroller from the Kinetis K21 (K2 USB) family running at 50 MHz, with 256 KB flash memory and 64 KB SRAM, in an 80-pin LQFP (12x12 mm) surface-mount package. Supply operation spans 1.8V, 2.5V, and 3.3V rails per NXP datasheet documentation. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die. Within the semiconductor hierarchy, the K21 sits under the Kinetis K family of ARM-based MCUs, which in turn belongs to the broader embedded-processor product category used to build firmware-controlled electronic systems. Key features include the 50 MHz Cortex-M4 core with DSP instructions, 256 KB of on-chip flash for code storage, full-speed USB device support, and per NXP product information, hardware encryption and tamper-detection capability (DryIce) that distinguishes the K21 security-enabled variants from baseline K1x parts. Technically, the Cortex-M4 architecture provides a 3-stage pipeline, single-cycle multiply-accumulate, and Thumb-2 instruction set, making the device suitable for digital signal processing tasks alongside general control firmware. The rich peripheral suite of analog, communication, timing, and control blocks allows the chip to host complete embedded applications with minimal external circuitry. Typical applications include industrial control nodes, USB-connected instruments and Human Machine Interfaces, and secure embedded systems that benefit from the anti-tamper hardware. The industrial temperature grade and gull-wing LQFP terminals simplify both prototyping and production assembly. For design, confirm RAM sizing early: the family spans variants with different SRAM configurations, and code growth in USB-heavy applications can exhaust flash faster than expected, so plan margin or select a 512 KB flash sibling in the same footprint. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MK21DX256VMC5 - 32-Bit 50MHz Cortex-M4 MCU | NXP
MK21DX256VMC5

MK21DX256VMC5 - 32-Bit 50MHz Cortex-M4 MCU | NXP

The NXP Semiconductors MK21DX256VMC5 is a 32-bit ARM Cortex-M4 microcontroller with 256 KB of flash memory, a 50 MHz processor, and USB capability in a 121-pin MAPBGA package. It is associated with the Kinetis K21 microcontroller family and is intended for embedded applications requiring integrated USB, substantial flash storage, and broad peripheral support. The verified distributor data identifies the package as 121-MAPBGA (8x8), while another distributor describes it as a 121-LFBGA package. What is a microcontroller? A microcontroller is a semiconductor device that combines a processor core, memory, and peripherals into one integrated circuit. In the product hierarchy, the MK21DX256VMC5 is a microcontroller, embedded processor, ARM Cortex-M MCU, and Kinetis K-series device. Its integrated USB controller supports data-oriented peripheral designs, while the 256 KB flash capacity provides substantially more program storage than small general-purpose MCUs. The verified product data specifies a 32-bit architecture, ARM Cortex-M4 core, 50 MHz operating frequency, 256 KB flash, USB, and a 121-pin MAPBGA package. The available distributor record reports 7,888 pieces in stock and a unit price of $5.5282 for reference at the stated source date. Other distributor listings describe the component as a Kinetis K20 or K21 device, so the exact family designation and pin details should be confirmed against the current NXP datasheet before a new design is released. Typical uses include USB-connected embedded controllers, industrial equipment, data-acquisition modules, human-interface devices, and connected peripheral systems. The 50 MHz Cortex-M4 core provides a balance of processing capability and embedded power efficiency, while 256 KB flash allows larger firmware images and more complex application logic. The package requires careful PCB layout and thermal validation because its fine-pitch BGA construction can complicate assembly, inspection, and rework. The most important design checks are power sequencing, decoupling, USB signal integrity, clock configuration, and exposed-pad thermal management. The verified data does not provide RAM, voltage limits, GPIO count, peripheral details, temperature range, or the complete 121-pin mapping, so those parameters must be taken from the manufacturer datasheet rather than inferred. This page separates verified distributor facts from data requiring direct datasheet confirmation. This product page combines verified pricing and availability references, package identification, application guidance, and replacement-screening context that can help engineers evaluate whether the MK21DX256VMC5 belongs in an embedded USB design. It is intended as an engineering starting point, not as a substitute for the latest NXP datasheet, errata, or qualification records.

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MK21FN1M0VLQ12 - 120MHz Cortex-M4 MCU, 1MB Flash | NXP
MK21FN1M0VLQ12

MK21FN1M0VLQ12 - 120MHz Cortex-M4 MCU, 1MB Flash | NXP

The NXP Semiconductors MK21FN1M0VLQ12 is a 32-bit ARM Cortex-M4 microcontroller from the Kinetis K21F sub-family, featuring 1MB of Flash memory, 128KB of SRAM, and Full-Speed USB with on-chip PHY, operating at up to 120 MHz. Housed in a 144-pin LQFP (20x20 mm) package, this MCU integrates hardware encryption, tamper detection, and a rich peripheral mix including multiple UART, SPI, I2C, ADC, DAC, and timer modules. What is a microcontroller? A microcontroller is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces into one package. Microcontrollers (MCUs) -> ARM Cortex-M microcontrollers -> Cortex-M4 with FPU -> Kinetis K series -> K21F sub-family. The K21F targets cost-sensitive, low-power, secure-connected applications and is positioned between the K10 (entry) and K60 (USB+Ethernet+high-speed) families within NXP's Kinetis portfolio. Key features include a Cortex-M4 core with single-precision FPU and DSP instructions, 1MB Flash for application code, 128KB SRAM for data/buffers, Full-Speed USB 2.0 device/host/OTG with on-chip transceiver, hardware AES-128 encryption, secure anti-tamper pins, a 16-bit SAR ADC with up to 24 channels, two 12-bit DACs, and a low-power segment-LCD controller option. The 144-LQFP package exposes all major peripherals for maximum design flexibility. The MK21FN1M0VLQ12 uses a Cortex-M4 core delivering 1.25 Dhrystone MIPS per MHz, with single-cycle MAC and hardware FPU for DSP workloads. The integrated power management supports multiple low-power modes (Wait, Stop, VLPR, VLPS) and an internal voltage regulator. The 1MB Flash is organized in a dual-bank arrangement for in-application programming and EEPROM emulation. Hardware AES-128 and tamper detection modules protect against software and physical attacks on connected endpoints. Typical applications include USB-connected industrial control systems, secure point-of-sale (POS) terminals, anti-tamper smart meters, low-power human-machine interfaces (HMI) with segment LCD, consumer medical devices, and home/building automation gateways. The combination of Full-Speed USB, hardware crypto, and low-power Run/Stop modes makes the part especially suited to battery-powered secure peripherals. When designing with the MK21FN1M0VLQ12, carefully review the decoupling network: place 100nF X7R capacitors as close as possible to every VDD/VSS pair, with bulk 4.7uF X5R near the regulator output. For USB, the D+/D- traces must be 90 ohm differential with no stubs; route over a continuous ground plane. Use the tamper pins to short/lock memory on intrusion, and select the boot mode via the security/boot configuration pins. This page synthesizes distributor pricing, K21/K22/K24 drop-in and migration alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select the right Kinetis K2x variant for their USB-connected secure design.

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MK21FX512AVLQ12557 - Kinetis K21 512KB Flash 120MHz Cortex-M4 | NXP
MK21FX512AVLQ12557

MK21FX512AVLQ12557 - Kinetis K21 512KB Flash 120MHz Cortex-M4 | NXP

The NXP MK21FX512AVLQ12557 is a Kinetis K21 family microcontroller built on the ARM Cortex-M4 core with a single-precision Floating-Point Unit (FPU), integrated hardware encryption and tamper detection features, and 512 KB of on-chip Flash memory. Housed in a 144-pin LQFP (20 mm x 20 mm) package, the device operates from a 1.71 V to 3.6 V supply at up to 120 MHz core clock, and integrates 128 KB of SRAM alongside a rich set of analog, communication, timing and control peripherals for industrial and automotive-grade applications. This part variant typically targets secure connectivity and low-power embedded nodes that require deterministic real-time response. A Kinetis K-series microcontroller is a low-power ARM Cortex-M4 mixed-signal MCU family from NXP Semiconductors designed for secure, cost-sensitive embedded designs. MK21FX512-class devices extend the K20 baseline with an integrated cryptographic acceleration engine (MMCAU), tamper-detection logic, and an RTC with secure key storage, placing them in the broader product taxonomy of microcontroller -> 32-bit MCU -> ARM Cortex-M MCU -> mixed-signal MCU -> secure MCU. This hierarchy matters when designers select a part for long-life industrial or metering platforms that demand hardware-accelerated encryption without an external secure element. Key specifications include a 120 MHz maximum CPU frequency, 512 KB program Flash, 128 KB SRAM, multiple low-power modes (Run, Wait, Stop, VLPR, VLPS, LLS, VLLS), a 16-bit SAR ADC, 12-bit DAC, programmable gain amplifiers, FlexTimer/PWM modules, USB 2.0 full-speed with on-chip transceiver, CAN, I2C, UART, DSPI, and I2S. Hardware encryption engines accelerate AES, DES, 3DES, SHA, MD5, and RNG operations, while integrated tamper-detection supports physical attack mitigation for metering, payment terminals, and secure peripherals. The MK21FX512AVLQ12557 architecture combines a Cortex-M4 processor with an integrated bus matrix connecting SRAM, Flash, and peripherals through a multi-layer AHB/APB fabric. The cryptographic acceleration engine (MMCAU) executes AES-128/192/256, DES, 3DES, SHA-1, SHA-256, MD5 and a true random-number generator entirely in hardware, offloading these compute-intensive tasks from the CPU. Wide supply tolerance from 1.71 V to 3.6 V and an extended industrial operating temperature range (typically -40 C to +105 C) make the part suitable for harsh-environment designs. Typical applications include industrial secure connectivity nodes, smart metering and AMI endpoints, building automation controllers, HMI panels, low-end security alarm panels, secure peripheral controllers for printers, and automotive-grade body and chassis subsystems. The integrated AES/SHA/MD5/RNG combined with tamper detection makes the part particularly well-suited to secure point-of-sale terminals and tamper-resistant IoT gateways that require hardware root-of-trust. Designers should plan for an external 32.768 kHz crystal for the RTC, follow NXP reference design recommendations for power-supply decoupling (typically 100 nF + 4.7 uF + bulk capacitors near each supply pin), and ensure the flash programming voltage rail VPP is left floating in normal operation. Engineers migrating from the K20 family must review the K21 tamper-detection and cryptography block layout differences before reuse. This page consolidates verified distributor stock and pricing data, drop-in alternatives sourced from NXP Kinetis K-series pin-compatible variants, and design notes for engineers evaluating the MK21FX512AVLQ12557 against modern Cortex-M33 alternatives or in long-lifecycle industrial BOM hardening exercises.

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MK21FX512VLQ12 - 120MHz Cortex-M4 MCU 512KB | NXP
MK21FX512VLQ12

MK21FX512VLQ12 - 120MHz Cortex-M4 MCU 512KB | NXP

The NXP Semiconductors MK21FX512VLQ12 is a 32-bit ARM Cortex-M4 microcontroller of the Kinetis K21 (120 MHz) family, delivering 120 MHz core frequency, 512 KB flash program memory plus 128 KB FlexMem (configurable flash/EEPROM), and 128 KB SRAM, housed in a 144-pin LQFP (20 x 20 mm) surface-mount package. It belongs to the Kinetis K-series MCU portfolio originally developed by Freescale Semiconductor. A microcontroller unit (MCU) is a single-chip embedded processor that integrates a CPU core, memory arrays, and a rich set of peripherals on one die, sitting within the broader hierarchy of semiconductor devices as a system-on-chip for embedded control. Unlike a general-purpose processor, an MCU executes dedicated firmware for real-time control, sensing, and connectivity tasks in a power-efficient manner. Key features of the MK21FX512VLQ12 include hardware cryptography and tamper detection for security-sensitive designs, a USB full-/low-speed On-The-Go controller with on-chip transceiver and device charger-detect capability, and a floating-point unit inherited from the Cortex-M4 core for efficient DSP and motor-control mathematics. The communication peripheral set comprises two SPI modules, two I2C modules, four UART modules, and an I2S audio interface, enabling multi-bus system designs without external expanders. Analog integration covers high-speed ADCs and comparators per the K21 sub-family datasheet, and flexible clocking supports low-power operation targets typical of cost-sensitive industrial applications. Typical applications include industrial automation and control nodes, IoT edge devices, robotics controllers, consumer appliances, and secure portable equipment where the anti-tamper and hardware encryption engine reduces bill-of-materials cost for security. Design consideration: as this device is listed NRND (Not Recommended for New Designs) by NXP, new designs should evaluate pin-compatible successors or confirm long-term supply before committing; the 144-LQFP requires careful decoupling of the multiple VDD/VSS pairs per the manufacturer datasheet. This page synthesizes distributor listings, lifecycle status, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone, with pricing verified as of 2026-10-18.

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MK21FX512VMC12-FR - 120MHz Cortex-M4 512KB MCU | NXP
MK21FX512VMC12-FR

MK21FX512VMC12-FR - 120MHz Cortex-M4 512KB MCU | NXP

The NXP MK21FX512VMC12-FR is a 32-bit Kinetis K21 series microcontroller based on the ARM Cortex-M4 core with floating point unit, running at 120 MHz, integrating 512 KB of flash memory and 121-ball MAPBGA (8x8 mm) packaging. The -FR suffix indicates Rochester Electronics authorized continuation supply of this originally Freescale Semiconductor device. A microcontroller (MCU) is a single integrated circuit that combines a processor core, non-volatile program memory, SRAM, and a rich suite of peripherals such as ADCs, timers, and communication interfaces. MCUs form the lowest tier of the embedded processing hierarchy, sitting below application processors and digital signal processors, and are the workhorse of embedded system design for industrial control, consumer products, and IoT nodes. Key features of the Kinetis K21 family include hardware encryption with tamper detection for security-sensitive designs, a comprehensive analog and communication peripheral suite, and low-power operation targeted at cost-sensitive applications. The Cortex-M4 core with DSP instructions and an FPU accelerates control loops, digital filtering, and audio processing at 120 MHz clock speed. Technically, the K21F series operates from supply voltages of 1.8V, 2.5V, or 3.3V and uses ARM's Cortex-M4 microarchitecture with Harvard bus structure. The 121-pin MAPBGA array minimizes board space and shortens interconnections, which improves signal integrity and supports compact 8x8 mm layouts with high peripheral integration. Typical applications include industrial control and automation nodes, audio processing equipment, medical monitoring devices, and IoT gateways where hardware cryptographic acceleration and low power consumption are required. When designing with this device, note the MSL 3 (168 hours) moisture sensitivity rating: the tray-packed BGA must be baked if floor-life exposure exceeds 168 hours before reflow. This page synthesizes distributor pricing, drop-in same-family alternatives, compliance data, and practical design notes not found in a single manufacturer datasheet.

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MK21FX512VMD12 - 120MHz Cortex-M4F 512KB MCU | NXP
MK21FX512VMD12

MK21FX512VMD12 - 120MHz Cortex-M4F 512KB MCU | NXP

NXP Semiconductors MK21FX512VMD12 is a 32-bit Kinetis K21 microcontroller built around an ARM Cortex-M4F processor operating at 120 MHz, with 512 KB of Flash, 128 KB of RAM, and 128 KB of FlexMem in a 144-map BGA package. The device includes USB connectivity, anti-tamper features, hardware encryption, analog peripherals, communications peripherals, timing resources, and control peripherals for embedded applications. A microcontroller is a compact programmable system containing a processor core, memory, and integrated peripherals. It executes firmware to acquire data, evaluate control logic, and operate communications or human-interface systems. The Cortex-M4F architecture belongs to the ARM Cortex-M family and combines general-purpose embedded processing with digital signal processing capabilities. Kinetis K21 devices target cost-sensitive embedded systems requiring low-power functionality and broad peripheral integration. The supplied product information identifies a 512 K × 8 Flash configuration, 512 KB program memory, 128 KB RAM, 128 KB FlexMem, a 120 MHz maximum CPU frequency, and a 144-MAPBGA package. The Mouser listing additionally identifies USB and anti-tamper functionality. The NXP product page states that the family includes hardware encryption, tamper detection, and a rich selection of analog, communication, timing, and control peripherals. The FlexMem memory can support applications that benefit from flexible nonvolatile data storage, while the USB interface supports USB-connected control or data-transfer designs. The integrated analog and timing resources can reduce the need for external components in sensing, motor-control, communications, and general industrial products. Exact peripheral assignments, electrical limits, pin functions, clock ranges, and operating-temperature limits require confirmation from the manufacturer datasheet. Typical uses include industrial control equipment, USB-enabled embedded controllers, security-aware access systems, sensor nodes, communications equipment, and compact consumer products. Because this part is identified as NRND, new designs should confirm lifecycle, availability, and migration implications with NXP before committing to production. For PCB design, use the exact 144-MAPBGA land pattern and verify every ball assignment against the datasheet before routing power, ground, communications, and debug signals. Confirm package dimensions, ball-map orientation, decoupling requirements, and exposed thermal-management requirements rather than relying on generic BGA layout assumptions. This product page consolidates the supplied manufacturer, distributor, and cross-reference information while clearly separating verified facts from parameters that require datasheet confirmation. It also highlights the need to evaluate lifecycle status, package-level compatibility, firmware support, and electrical equivalence before selecting a replacement or alternative.

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