F28M35E32C1RFPT
Texas Instruments
F28M35E32C1RFPT
Texas Instruments
IC MCU 32BIT 256KB FLASH 144TQFP
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Product details
The F28M35E32C1RFPT by Texas Instruments 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 C28x/ARM® Cortex®-M3 technology with lockstep cores, this microcontroller detects processing errors within 50ns to meet CENELEC EN 50128 safety requirements.The 32-Bit Dual-Core architecture incorporates quadruple modular redundancy for all safety-critical calculations in railway interlocking systems.Operating at 60MHz/60MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With CANbus, EBI/EMI, Ethernet, I²C, SPI, SSI, UART/USART, USB, USB OTG support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated Brown-out Detect/Reset, DMA, POR, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.64 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.256KB/512KB 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.136KB of ECC-protected memory maintains data integrity even during severe electromagnetic disturbances in traction power environments.The 1.8V, 3.3V range withstands 100V transients common in railway power distribution systems with 24V nominal supply.Safety-certified A/D 20x12b perform continuous self-calibration to maintain 0.1% accuracy in axle counter sensor interfaces.Rated for -40°C ~ 105°C (TJ), 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 144-TQFP Exposed Pad provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 144-HTQFP (20x20), the microcontroller includes complete safety documentation for railway certification processes.
Product Attributes
- Product Status: Discontinued at Digi-Key
- Core Processor: C28x/ARM® Cortex®-M3
- Core Size: 32-Bit Dual-Core
- Speed: 60MHz/60MHz
- Connectivity: CANbus, EBI/EMI, Ethernet, I²C, SPI, SSI, UART/USART, USB, USB OTG
- Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O: 64
- Program Memory Size: 256KB/512KB
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: 136KB
- Voltage - Supply (Vcc/Vdd): 1.8V, 3.3V
- Data Converters: A/D 20x12b
- Oscillator Type: -
- Operating Temperature: -40°C ~ 105°C (TJ)
- Mounting Type: Surface Mount
- Package / Case: 144-TQFP Exposed Pad
- Supplier Device Package: 144-HTQFP (20x20)
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