MB89557APMC-G-155E1
Infineon Technologies
MB89557APMC-G-155E1
Infineon Technologies
IC MCU 8BIT 32KB MROM
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Product details
The MB89557APMC-G-155E1 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 F²MCR-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.62 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.32KB (32K 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.1K 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 8x10b; 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 -40°C ~ 85°C (TA), the device operates reliably in trackside enclosures without climate control.
Product Attributes
- Product Status: Obsolete
- Core Processor: F²MCR-8L
- Core Size: 8-Bit
- Speed: 12.5MHz
- Connectivity: Serial I/O, UART/USART
- Peripherals: LCD, POR, PWM, WDT
- Number of I/O: 62
- Program Memory Size: 32KB (32K x 8)
- Program Memory Type: Mask ROM
- EEPROM Size: -
- RAM Size: 1K x 8
- Voltage - Supply (Vcc/Vdd): 2.2V ~ 5.5V
- Data Converters: A/D 8x10b; D/A 2x8b
- Oscillator Type: External
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: -
- Package / Case: -
- Supplier Device Package: -
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