MAXQ7665BATM+T
Analog Devices Inc./Maxim Integrated
MAXQ7665BATM+T
Analog Devices Inc./Maxim Integrated
IC MCU 16BIT 64KB FLASH 48TQFN
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Product details
The MAXQ7665BATM+T by Analog Devices Inc./Maxim Integrated 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.The 16-Bit architecture incorporates quadruple modular redundancy for all safety-critical calculations in railway interlocking systems.Operating at 8MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With CANbus, LINbus, UART/USART support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated Brown-out Detect/Reset, POR, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.8 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.64KB (32K x 16) 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.256 x 16 of ECC-protected memory maintains data integrity even during severe electromagnetic disturbances in traction power environments.The 2.7V ~ 5.25V range withstands 100V transients common in railway power distribution systems with 24V nominal supply.Safety-certified A/D 8x12b; D/A 1x12b perform continuous self-calibration to maintain 0.1% accuracy in axle counter sensor interfaces.The Internal includes redundant clock sources with automatic switchover to maintain timing during oscillator failures.Rated for -40°C ~ 125°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 48-VFQFN Exposed Pad provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 48-SQFN (7x7), the microcontroller includes complete safety documentation for railway certification processes.
Product Attributes
- Product Status: Obsolete
- Core Processor: -
- Core Size: 16-Bit
- Speed: 8MHz
- Connectivity: CANbus, LINbus, UART/USART
- Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O: 8
- Program Memory Size: 64KB (32K x 16)
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: 256 x 16
- Voltage - Supply (Vcc/Vdd): 2.7V ~ 5.25V
- Data Converters: A/D 8x12b; D/A 1x12b
- Oscillator Type: Internal
- Operating Temperature: -40°C ~ 125°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 48-VFQFN Exposed Pad
- Supplier Device Package: 48-SQFN (7x7)
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