| Parameter |
Value |
| Crypto Engine |
No |
| Hardware QTouch Acquisition |
No |
| Camera Interface |
No |
| Graphic LCD |
No |
| EEPROM (Bytes) |
0 |
| Flash (Kbytes) |
256 Kbytes |
| MPU / MMU |
Yes / No |
| External Bus Interface |
1 |
| DAC Resolution (bits) |
16 |
| SPI |
6 |
| Output Compare channels |
18 |
| Self Program Memory |
YES |
| PWM Channels |
12 |
| Timers |
6 |
| USB Speed |
Hi-Speed |
| ADC Resolution (bits) |
10 |
| # of Touch Channels |
32 |
| USB Interface |
Device + OTG |
| SRAM (Kbytes) |
128 |
| ADC Speed (ksps) |
384 |
| USB Transceiver |
1 |
| Resistive Touch Screen |
No |
| Temp. Range (deg C) |
-40 to 85 |
| picoPower |
No |
| SSC |
1 |
| I/O Supply Class |
3.0 to 3.6 |
| LIN |
4 |
| NAND Interface |
Yes |
| Temp. Sensor |
No |
| Input Capture Channels |
12 |
| FPU |
No |
| UART |
4 |
| Max I/O Pins |
110 |
| CPU |
32-bit AVR |
| Ext Interrupts |
110 |
| Pin Count |
144 |
| Operating Voltage (Vcc) |
3.0 to 3.6 |
| SD / eMMC |
1 |
| 32kHz RTC |
Yes |
| Max. Operating Frequency |
66 MHz |
| Video Decoder |
No |
| ADC channels |
8 |
| TWI (I2C) |
2 |
| DRAM Memory |
sdram |
| DAC Channels |
2 |
| Calibrated RC Oscillator |
Yes |
A complete system-on-chip 32-bit AVR microcontroller. It is designed for cost-sensitive embedded applications that require low power consumption, high code density and high performance.
The microcontroller's Memory Protection Unit (MPU) and fast, flexible interrupt controller support the latest real-time operating systems. Higher computation capabilities are achievable using a rich set of DSP instructions. The device incorporates on-chip flash and SRAM memories for secure and fast access. 64 KBytes of SRAM are directly coupled to the 32-bit AVR UC3 for performance optimization. Two blocks of 32 Kbytes SRAM are independently attached to the high speed bus matrix for real ping-pong management.
The microcontroller achieves exceptionally high data throughput by combining the multi-layered 32-bit AVR databus,128 KB on-chip SRAM with triple high speed interfaces, multi-channel peripheral, memory-to-memory DMA controller, high-speed USB embedded host, SD/SDIO card, MLC NAND flash with ECC, and SDRAM interfaces.
This device features 256KB internal high-speed flash, built-in hi-fi stereo audio D/A converter and full-duplex multi-channel I2S audio interface.
The AT32UC3A3256AU is the Audio version of the AT32UC3A3256. It allows the execution of Atmel licensed Audio firmware IPs.
One version is available:
BuildingAutomation: 舒适性与控制
HomeEntertainment: 音频
MobileElectronics: 便携式音频播放器, 移动电话和移动互联网设备
PCPeripherals: 音频 I/O 设备
