32-bit AVR microcontroller featuring 256KB FLASH memory and 32KB RAM. Operates at up to 60MHz with a 3.3V supply voltage, ranging from 1.65V to 3.6V. Offers 28 I/Os with interfaces including I2C, SPI, USB, IrDA, UART, USART, and RS-485. Includes 6 ADC channels, 7 PWM channels, and peripherals like Brown-out Detect/Reset, POR, WDT, and DMA. Packaged in a 48-pin TQFP for surface mounting.
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Microchip AT32UC3B1256-AUT technical specifications.
| Package/Case | TQFP |
| Core Architecture | AVR |
| Data Bus Width | 32b |
| Density | 256KB |
| Frequency | 60MHz |
| Height | 1.05mm |
| Interface | I2C, SPI, USB, IrDA, UART, USART, RS-485 |
| Length | 7mm |
| Max Frequency | 60MHz |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 1.65V |
| Mount | Surface Mount |
| Number of ADC Channels | 6 |
| Number of Bits | 32 |
| Number of I/Os | 28 |
| Number of I2C Channels | 1 |
| Number of PWM Channels | 7 |
| Number of SPI Channels | 1 |
| Number of Timers/Counters | 1 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| RAM Size | 32KB |
| Reach SVHC Compliant | No |
| RoHS Compliant | Yes |
| Series | AVR®32 UC3 B |
| Termination | SMD/SMT |
| Width | 7mm |
| RoHS | Compliant |
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