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See Product Specifications
| Part Number: | ATUC128D3-A2UT | 
| Category: | Integrated Circuits (ICs) | 
| Subcategory: | Embedded - Microcontrollers | 
| Manufacturer: | Atmel | 
| Packaging: | Bulk | 
| Product Status: | Active | 
| Core Processor: | AVR | 
| Core Size: | 32-Bit Single-Core | 
| Speed: | 48MHz | 
| Connectivity: | I²C, SPI, UART/USART, USB | 
| Peripherals: | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | 
| Number of I/O: | 51 | 
| Program Memory Size: | 128KB (128K x 8) | 
| Program Memory Type: | FLASH | 
| EEPROM Size: | - | 
| RAM Size: | 16K x 8 | 
| Voltage - Supply (Vcc/Vdd): | 1.65V ~ 3.6V | 
| Data Converters: | A/D 8x10b | 
| Oscillator Type: | Internal | 
| Operating Temperature: | -40°C ~ 85°C (TA) | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 64-LQFP | 
| Supplier Device Package: | 64-LQFP (10x10) |