32-bit AVR microcontroller featuring 256KB FLASH memory and 128KB RAM. Operates at up to 66MHz with a 3.3V supply voltage (1.65V to 3.6V range). Offers 110 programmable I/Os and extensive interfaces including SPI, I2C, USART, USB, and EBI/EMI. Packaged in a 144-pin LQFP (1.6mm height, 20.1mm length/width) for surface mounting. Includes peripherals like WDT, DMA, and 8 ADC channels.
Frequency66MHz
PackageLQFP
MountingSurface Mount
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Technical Specifications
Microchip AT32UC3A3256-ALUT technical specifications.
General
Package/Case
LQFP
Contact Plating
Tin, Matte
Core Architecture
AVR
Data Bus Width
32b
Density
256KB
Frequency
66MHz
Height
1.6mm
Interface
SPI, I2S, USART, 2-Wire, I2C, USB, IrDA, UART, EBI/EMI, RS-485, SCI
Lead Free
Lead Free
Length
20.1mm
Max Frequency
66MHz
Max Operating Temperature
85°C
Max Supply Voltage
3.6V
Memory Size
256KB
Memory Type
FLASH,
Min Operating Temperature
-40°C
Min Supply Voltage
1.65V
Mount
Surface Mount
Number of ADC Channels
8
Number of Bits
32
Number of I/Os
110
Number of I2C Channels
2
Number of Programmable I/O
110
Number of PWM Channels
2
Number of SPI Channels
2
Number of Timers/Counters
6
Operating Supply Voltage
3.3V
Oscillator Type
Internal
Package Quantity
300
Packaging
Tray
Peripherals
Brown-out Detect/Reset, POR, WDT, DMA
Radiation Hardening
No
RAM Size
128KB
Reach SVHC Compliant
No
RoHS Compliant
Yes
Series
UC3 A3/A4
Termination
SMD/SMT
Watchdog Timer
Yes
Weight
0.045518oz
Width
20.1mm
Compliance
RoHS
Compliant
Datasheet
Microchip AT32UC3A3256-ALUT Datasheet
Download the complete datasheet for Microchip AT32UC3A3256-ALUT to view detailed technical specifications.
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