Wireless and RF-Wi-Fi-

Parameter
Description

Parameter	Value
Resistive Touch Screen	No
UART	4
CPU	32-bit AVR
Pin Count	100
Temp. Range (deg C)	-40 to 85
PWM Channels	0
ADC channels	8
TWI (I2C)	2
DRAM Memory	No
External Bus Interface	0
Calibrated RC Oscillator	Yes
Output Compare channels	6
picoPower	No
32kHz RTC	Yes
I/O Supply Class	3.0 to 3.6
EEPROM (Bytes)	0
Video Decoder	No
MPU / MMU	Yes / No
Temp. Sensor	No
FPU	No
DAC Resolution (bits)	0
Crypto Engine	No
SPI	6
Operating Voltage (Vcc)	3.0 to 3.6
Camera Interface	No
Timers	6
Max. Operating Frequency	66 MHz
ADC Resolution (bits)	10
Flash (Kbytes)	256 Kbytes
USB Interface	Device + OTG
SRAM (Kbytes)	128
USB Transceiver	1
Input Capture Channels	6
Hardware QTouch Acquisition	No
Self Program Memory	YES
SD / eMMC	2
Graphic LCD	No
USB Speed	Hi-Speed
SSC	1
NAND Interface	Yes

32-bit AVR microcontroller designed for exceptionally high data throughput with Hi-Speed USB OTG, SD/SDIO card and Multi-Level-Cell (MLC) NAND flash with ECC interfaces. Designed with the multi-layered 32-bit AVR databus, 128 KB on-chip SRAM with triple high speed interfaces,and multi-channel Peripheral and memory to memory DMA controller, the AT32UC3A4256 offers outstanding data throughput.

The device also features a Built-in Hi-Fi stereo Audio DAC, and a fullduplex multi-channel I2S audio interface.

128KB version: AT32UC3A4128
64KB version: AT32UC3A464

144-pin version: AT32UC3A3256
Crypto version: AT32UC3A4256S

AT32UC3A4256

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