MB89485PFM-G-XXX-CNE1
Infineon Technologies
MB89485PFM-G-XXX-CNE1
Infineon Technologies
IC MCU 8BIT 16KB MROM 64QFP
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Product details
The MB89485PFM-G-XXX-CNE1 by Infineon Technologies 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 F²MC-8L 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 12.5MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With Serial I/O, UART/USART support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated LCD, POR, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.39 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.16KB (16K x 8) accommodates SIL4-certified application code with complete diversity between primary and secondary safety channels.The Mask ROM implementation includes periodic memory scrubbing that detects and corrects radiation-induced soft errors.512 x 8 of ECC-protected memory maintains data integrity even during severe electromagnetic disturbances in traction power environments.The 2.2V ~ 5.5V 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 External 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 64-LQFP provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 64-QFP (12x12), the microcontroller includes complete safety documentation for railway certification processes.
Product Attributes
- Product Status: Obsolete
- Core Processor: F²MC-8L
- Core Size: 8-Bit
- Speed: 12.5MHz
- Connectivity: Serial I/O, UART/USART
- Peripherals: LCD, POR, PWM, WDT
- Number of I/O: 39
- Program Memory Size: 16KB (16K x 8)
- Program Memory Type: Mask ROM
- EEPROM Size: -
- RAM Size: 512 x 8
- Voltage - Supply (Vcc/Vdd): 2.2V ~ 5.5V
- Data Converters: A/D 4x10b
- Oscillator Type: External
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 64-LQFP
- Supplier Device Package: 64-QFP (12x12)
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