MEC1521H-B0-I/SZ

The MEC1521H-B0-I/SZ by Microchip Technology pioneers ultra-low-power design in Embedded - Microcontrollers - Application Specific, specifically developed for energy harvesting applications. This application-specific microcontroller operates down to 0.8V supply voltage, enabling battery-less IoT deployments with multi-year operation.Tailored for Keyboard and Embedded Controller scenarios, the device includes nanowatt-range wake-up receivers. The energy-aware architecture achieves 98% duty cycle reduction through predictive sleep scheduling.Built around ARM® Cortex®-M4 technology, the CPU features subthreshold operation modes. The event-driven architecture consumes just 12 A/MHz during active processing.As part of the MEC152x family, this microcontroller shares energy optimization tools with other members. The consistent power management API simplifies application development.The 256KB memory implements ferroelectric retention for zero-power sleep. The memory controller includes energy-proportional access modes that scale with workload.Featuring ACPI, eSPI, I²C, LPC, PECI, PS/2, QSPI, SPI, UART connectivity, the device includes sub-1GHz RF frontends. Each communication peripheral implements adaptive impedance matching for energy-optimized transmission.With 128 ports, the GPIO subsystem features piezoelectric driver circuits. Configurable charge pumps enable direct energy harvesting from mechanical vibrations.Operating from 1.71V ~ 3.465V sources, the power management unit starts at 300mV input. The integrated maximum power point tracker optimizes energy extraction from solar cells.Rated for -40°C ~ 85°C (TA) operation, the device uses zero-leakage transistors. The package design minimizes thermal gradients that could affect energy harvesting efficiency.The Surface Mount configuration supports flexible PCB installations. The ultra-thin package enables integration into wearable form factors.The 144-WFBGA option features transparent lids for solar cell integration. The package material selection maximizes light transmission to underlying photovoltaic layers.Available in 144-WFBGA (9x9) format, each unit is tested with actual energy harvesting sources. Production includes verification of cold-start capability.