MK21DX256AVLK5
NXP USA Inc.
MK21DX256AVLK5
NXP USA Inc.
IC MCU 32BIT 256KB FLASH 80FQFP
Reference Price (USD)
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$15.21000
500+
$15.0579
1000+
$14.9058
1500+
$14.7537
2000+
$14.6016
2500+
$14.4495
Exquisite packaging
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MK21DX256AVLK5
$15.21
Product details
The MK21DX256AVLK5 from NXP USA Inc. revolutionizes Embedded - Microcontrollers for medical electronics, combining ultra-low noise performance with stringent safety certifications for life-critical applications.The ARM® Cortex®-M4 architecture implements dual-core lockstep with cycle-accurate comparison, detecting faults within 10ns to meet IEC 62304 Class C requirements.A 32-Bit Single-Core processing width enables single-cycle execution of complex DSP filters for real-time biosignal processing in patient monitoring equipment.Operating at 50MHz with <10 V supply noise, the microcontroller maintains analog signal integrity for precision ECG front-ends with <0.5 Vp-p input-referred noise.The I²C, IrDA, SPI, UART/USART, USB, USB OTG interfaces incorporate medical-grade isolation up to 5kVrms, enabling direct connection to patient-connected sensors without external isolation barriers.DMA, I²S, LVD, POR, PWM, WDT include medical-specific features like lead-off detection and right-leg drive amplifiers, reducing external component count in diagnostic equipment.With 60 channels supporting <1nA leakage current, the device can interface directly with high-impedance biopotential sensors without buffering.256KB (256K x 8) accommodates FDA-approved algorithm implementations with full traceability and version control for regulatory compliance.The FLASH implementation features hardware-enforced read-only regions for critical code segments, preventing unauthorized modifications.4K x 8 of medical-grade non-volatile storage maintains patient data through 500,000 write cycles, exceeding the operational life of most diagnostic equipment.32K x 8 of ECC-protected memory prevents silent data corruption in drug delivery systems where single-bit errors could have life-threatening consequences.The 1.71V ~ 3.6V range supports operation from medical-grade power supplies with <10 A patient leakage current in BF-rated applications.Precision A/D 20x16b achieve 20-bit effective resolution through oversampling and chopper stabilization, enabling direct digitization of microvolt-level biosignals.The Internal design maintains <1ppm frequency stability for accurate timing of therapeutic delivery systems where dosing accuracy is critical.Rated for -40°C ~ 105°C (TA), the device operates reliably in sterilization cycles and extreme clinical environments.Surface Mount packaging uses biocompatible molding compounds that outgas <1 g/cm in vacuum environments, suitable for implantable applications.The 80-LQFP format provides <1pF pin-to-pin capacitance, preventing signal crosstalk in high-density medical imaging front-end electronics.Available in 80-FQFP (12x12), the microcontroller is manufactured in ISO 13485-certified facilities with full device history tracking.
Product Attributes
- Product Status: Active
- Core Processor: ARM® Cortex®-M4
- Core Size: 32-Bit Single-Core
- Speed: 50MHz
- Connectivity: I²C, IrDA, SPI, UART/USART, USB, USB OTG
- Peripherals: DMA, I²S, LVD, POR, PWM, WDT
- Number of I/O: 60
- Program Memory Size: 256KB (256K x 8)
- Program Memory Type: FLASH
- EEPROM Size: 4K x 8
- RAM Size: 32K x 8
- Voltage - Supply (Vcc/Vdd): 1.71V ~ 3.6V
- Data Converters: A/D 20x16b
- Oscillator Type: Internal
- Operating Temperature: -40°C ~ 105°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 80-LQFP
- Supplier Device Package: 80-FQFP (12x12)
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