MAX32621IWG+W
Analog Devices Inc./Maxim Integrated
MAX32621IWG+W
Analog Devices Inc./Maxim Integrated
IC MCU 32BIT 2MB FLASH 81WLP
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Product details
The MAX32621IWG+W by Analog Devices Inc./Maxim Integrated pioneers ultra-reliable Embedded - Microcontrollers for railway signaling systems. Its fail-safe architecture and SIL4 certification make it the preferred choice for vital train control applications.Featuring ARM® Cortex®-M4F technology with lockstep cores, this microcontroller detects processing errors within 50ns to meet CENELEC EN 50128 safety requirements.The 32-Bit Single-Core architecture incorporates quadruple modular redundancy for all safety-critical calculations in railway interlocking systems.Operating at 96MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With 1-Wire, I²C, SPI, UART/USART, USB support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated Brown-out Detect/Reset, POR, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.49 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.2MB (2M x 8) accommodates SIL4-certified application code with complete diversity between primary and secondary safety channels.The FLASH implementation includes periodic memory scrubbing that detects and corrects radiation-induced soft errors.256K x 8 of ECC-protected memory maintains data integrity even during severe electromagnetic disturbances in traction power environments.The 1.14V ~ 3.6V range withstands 100V transients common in railway power distribution systems with 24V nominal supply.Safety-certified A/D 4x10b perform continuous self-calibration to maintain 0.1% accuracy in axle counter sensor interfaces.The Internal includes redundant clock sources with automatic switchover to maintain timing during oscillator failures.Rated for -30°C ~ 85°C (TA), the device operates reliably in trackside enclosures without climate control.Surface Mount packaging withstands 5g vibration and 50g shock loads specified in EN 61373 for rolling stock equipment.The 81-WFBGA, WLBGA provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 81-WLP (3.95x4.11), the microcontroller includes complete safety documentation for railway certification processes.
Product Attributes
- Product Status: Active
- Core Processor: ARM® Cortex®-M4F
- Core Size: 32-Bit Single-Core
- Speed: 96MHz
- Connectivity: 1-Wire, I²C, SPI, UART/USART, USB
- Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O: 49
- Program Memory Size: 2MB (2M x 8)
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: 256K x 8
- Voltage - Supply (Vcc/Vdd): 1.14V ~ 3.6V
- Data Converters: A/D 4x10b
- Oscillator Type: Internal
- Operating Temperature: -30°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 81-WFBGA, WLBGA
- Supplier Device Package: 81-WLP (3.95x4.11)
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