MAX32550-LNS+W
Analog Devices Inc./Maxim Integrated
MAX32550-LNS+W
Analog Devices Inc./Maxim Integrated
IC MCU 32BIT 1MB FLASH 121CTBGA
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Product details
The MAX32550-LNS+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®-M3 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 108MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With I²C, SPI, UART/USART support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated DMA, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.70 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.1MB (1M 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.Safety-certified A/D 2x10b; D/A 1x8b perform continuous self-calibration to maintain 0.1% accuracy in axle counter sensor interfaces.The External includes redundant clock sources with automatic switchover to maintain timing during oscillator failures.Surface Mount packaging withstands 5g vibration and 50g shock loads specified in EN 61373 for rolling stock equipment.The 121-LFBGA provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 121-CTBGA (8x8), the microcontroller includes complete safety documentation for railway certification processes.
Product Attributes
- Product Status: Obsolete
- Core Processor: ARM® Cortex®-M3
- Core Size: 32-Bit Single-Core
- Speed: 108MHz
- Connectivity: I²C, SPI, UART/USART
- Peripherals: DMA, PWM, WDT
- Number of I/O: 70
- Program Memory Size: 1MB (1M x 8)
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: 256K x 8
- Voltage - Supply (Vcc/Vdd): -
- Data Converters: A/D 2x10b; D/A 1x8b
- Oscillator Type: External
- Operating Temperature: -
- Mounting Type: Surface Mount
- Package / Case: 121-LFBGA
- Supplier Device Package: 121-CTBGA (8x8)
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