32-bit AVR RISC microcontroller featuring 128KB Flash program memory and 96KB RAM. Operates at up to 66 MHz with a 32-bit data bus. Offers 88 programmable I/Os, 3 timers, and multiple interfaces including I2C (2), SPI (2), USART (4), and USB (2). Housed in a 100-pin VFBGA package (7x7x0.68mm) for surface mounting. Supports operating voltages from 1.85V to 3.3V and operates within a temperature range of -40°C to 85°C.
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Microchip AT32UC3A4128-C1UR technical specifications.
| Basic Package Type | Ball Grid Array |
| Package Family Name | BGA |
| Package/Case | VFBGA |
| Package Description | Very Thin Fine Pitch Ball Grid Array |
| Lead Shape | Ball |
| Pin Count | 100 |
| PCB | 100 |
| Package Length (mm) | 7 |
| Package Width (mm) | 7 |
| Package Height (mm) | 0.68(Max) |
| Seated Plane Height (mm) | 1(Max) |
| Pin Pitch (mm) | 0.65 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Family Name | AT32 |
| Data Bus Width | 32bit |
| Instruction Set Architecture | RISC |
| Maximum Clock Rate | 66MHz |
| Maximum CPU Frequency | 66MHz |
| Device Core | AVR |
| Program Memory Type | Flash |
| Program Memory Size | 128KB |
| RAM Size | 96KB |
| Number of Programmable I/Os | 88 |
| Core Architecture | AVR |
| Programmability | Yes |
| Number of Timers | 3 |
| Interface Type | I2C/SPI/USART/USB |
| CAN | 0 |
| I2C | 2 |
| SPI | 2 |
| Ethernet | 0 |
| UART | 0 |
| USART | 4 |
| USB | 2 |
| I2S | 0 |
| Max Operating Supply Voltage | 1.89|3.6V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 85°C |
| ADC Channels | 8 |
| Number of ADCs | Single |
| Cage Code | 60991 |
| EU RoHS | Yes |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| ECCN | 3A991.a.2 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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