AT90LS8535-4MI
Microchip Technology
AT90LS8535-4MI
Microchip Technology
IC MCU 8BIT 8KB FLASH 44VQFN
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Product details
The AT90LS8535-4MI by Microchip Technology is a breakthrough in Embedded - Microcontrollers, specifically designed for renewable energy systems. Its advanced power management architecture and grid synchronization capabilities make it perfect for solar inverters and wind turbine controllers.Featuring AVR technology, this microcontroller executes complex MPPT algorithms in real-time while maintaining less than 2% THD in power conversion applications.The 8-Bit processing architecture enables simultaneous voltage and current waveform analysis, crucial for three-phase grid-tied inverters requiring precise harmonic compensation.Operating at 4MHz, the device performs 64-point FFT calculations within 50 s, enabling rapid detection of grid anomalies in distributed generation systems.SPI, UART/USART interfaces support Power Line Communication protocols, allowing direct data transmission over existing AC wiring in smart metering applications.Integrated Brown-out Detect/Reset, POR, PWM, WDT include dedicated PWM timers with dead-band control for driving IGBT modules in high-efficiency power conversion stages.With 32 optically isolated inputs, the microcontroller can directly interface with high-voltage sensing circuits in utility-scale power equipment.8KB (4K x 16) accommodates complete IEC 61850-compliant communication stacks alongside application code for substation automation devices.The FLASH implementation features shadow memory for fail-safe firmware updates during continuous operation of critical power infrastructure.512 x 8 of endurance-rated storage logs performance data through 20 years of continuous operation in grid-tied applications.512 x 8 of battery-backed RAM maintains system state during brief grid outages, ensuring seamless re-synchronization when power returns.The 2.7V ~ 6V range supports direct operation from PV strings up to 1000V DC through integrated buck converters.Precision A/D 8x10b achieve 0.1% accuracy in current measurement for revenue-grade metering applications requiring ANSI C12.20 compliance.The Internal maintains 0.01% frequency stability for accurate phasor measurement in smart grid synchronization applications.Rated for -40°C ~ 85°C, the device operates reliably in solar farm environments where module temperatures can exceed 85 C.Surface Mount packaging withstands high humidity and salt spray conditions encountered in coastal wind power installations.The 44-VFQFN Exposed Pad provides 5kV isolation between high-voltage and control circuits, meeting UL 1741 safety requirements.Available in 44-VQFN (7x7), the microcontroller undergoes rigorous testing for electromagnetic compatibility in high-noise power environments.
Product Attributes
- Product Status: Obsolete
- Core Processor: AVR
- Core Size: 8-Bit
- Speed: 4MHz
- Connectivity: SPI, UART/USART
- Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O: 32
- Program Memory Size: 8KB (4K x 16)
- Program Memory Type: FLASH
- EEPROM Size: 512 x 8
- RAM Size: 512 x 8
- Voltage - Supply (Vcc/Vdd): 2.7V ~ 6V
- Data Converters: A/D 8x10b
- Oscillator Type: Internal
- Operating Temperature: -40°C ~ 85°C
- Mounting Type: Surface Mount
- Package / Case: 44-VFQFN Exposed Pad
- Supplier Device Package: 44-VQFN (7x7)
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