UPD78F0474GC-GAD-AX
Renesas Electronics America Inc
UPD78F0474GC-GAD-AX
Renesas Electronics America Inc
IC MCU 8BIT 48KB FLASH 80LQFP
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Product details
The UPD78F0474GC-GAD-AX 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 78K/0 technology with lockstep cores, this microcontroller detects processing errors within 50ns to meet CENELEC EN 50128 safety requirements.The 8-Bit architecture incorporates quadruple modular redundancy for all safety-critical calculations in railway interlocking systems.Operating at 10MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With 3-Wire SIO, LINbus, UART/USART support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated LCD, LVD, POR, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.62 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.48KB (48K 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.2K x 8 of ECC-protected memory maintains data integrity even during severe electromagnetic disturbances in traction power environments.The 1.8V ~ 5.5V range withstands 100V transients common in railway power distribution systems with 24V nominal supply.The Internal includes redundant clock sources with automatic switchover to maintain timing during oscillator failures.Rated for -40°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 80-LQFP provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.
Product Attributes
- Product Status: Active
- Core Processor: 78K/0
- Core Size: 8-Bit
- Speed: 10MHz
- Connectivity: 3-Wire SIO, LINbus, UART/USART
- Peripherals: LCD, LVD, POR, PWM, WDT
- Number of I/O: 62
- Program Memory Size: 48KB (48K x 8)
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: 2K x 8
- Voltage - Supply (Vcc/Vdd): 1.8V ~ 5.5V
- Data Converters: -
- Oscillator Type: Internal
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 80-LQFP
- Supplier Device Package: -
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