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See Product Specifications
| Part Number: | MEC1521H-B0-I/SZ | 
| Category: | Integrated Circuits (ICs) | 
| Subcategory: | Embedded - Microcontrollers - Application Specific | 
| Manufacturer: | Microchip Technology | 
| Packaging: | Tray | 
| Product Status: | Active | 
| Applications: | Keyboard and Embedded Controller | 
| Core Processor: | ARM® Cortex®-M4 | 
| Program Memory Type: | - | 
| Controller Series: | MEC152x | 
| RAM Size: | 256KB | 
| Interface: | ACPI, eSPI, I²C, LPC, PECI, PS/2, QSPI, SPI, UART | 
| Number of I/O: | 128 | 
| Voltage - Supply: | 1.71V ~ 3.465V | 
| Operating Temperature: | -40°C ~ 85°C (TA) | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 144-WFBGA | 
| Supplier Device Package: | 144-WFBGA (9x9) |