R4F24278NVFQU
Renesas Electronics America Inc
R4F24278NVFQU
Renesas Electronics America Inc
IC MCU 16BIT 512KB FLSH 144LFQFP
Reference Price (USD)
1+
$17.84900
500+
$17.67051
1000+
$17.49202
1500+
$17.31353
2000+
$17.13504
2500+
$16.95655
Exquisite packaging
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R4F24278NVFQU
$17.85
Product details
The R4F24278NVFQU by Renesas Electronics America Inc 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 H8S/2600 technology with lockstep cores, this microcontroller detects processing errors within 50ns to meet CENELEC EN 50128 safety requirements.The 16-Bit architecture incorporates quadruple modular redundancy for all safety-critical calculations in railway interlocking systems.Operating at 33MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With EBI/EMI, I²C, IrDA, SCI, SmartCard, SPI, SSU, UART/USART support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated DMA, POR, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.98 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.512KB (512K 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.48K x 8 of ECC-protected memory maintains data integrity even during severe electromagnetic disturbances in traction power environments.The 3V ~ 3.6V range withstands 100V transients common in railway power distribution systems with 24V nominal supply.Safety-certified A/D 16x10b; D/A 2x8b 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.Rated for -20°C ~ 75°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 144-LQFP provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 144-LFQFP (20x20), the microcontroller includes complete safety documentation for railway certification processes.
Product Attributes
- Product Status: Not For New Designs
- Core Processor: H8S/2600
- Core Size: 16-Bit
- Speed: 33MHz
- Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, SPI, SSU, UART/USART
- Peripherals: DMA, POR, PWM, WDT
- Number of I/O: 98
- Program Memory Size: 512KB (512K x 8)
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: 48K x 8
- Voltage - Supply (Vcc/Vdd): 3V ~ 3.6V
- Data Converters: A/D 16x10b; D/A 2x8b
- Oscillator Type: External
- Operating Temperature: -20°C ~ 75°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 144-LQFP
- Supplier Device Package: 144-LFQFP (20x20)
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