Atmel AT32UC3B064-A2UR

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Product attributes Property Value
Manufacturer Atmel
Product Series AVR®32 UC3 B
Packaging Bulk | NULL
Core Processor AVR
Core Size 32-Bit Single-Core
Speed 60MHz
Connectivity I2C, IrDA, SPI, SSC, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O 44
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 16K x 8
Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-TQFP (10x10)
Package / Case 64-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The AT32UC3B064-A2UR is a 32-bit AVR microcontroller from Atmel running at 60MHz. It offers 64KB of flash and 16K x 8 RAM, operating from 1.65V to 3.6V. In a 64-TQFP package, it includes brown-out detection, DMA, POR, PWM, and WDT for robust embedded designs.

  • High-speed AVR core: Efficient 32-bit processing at 60MHz.
  • Integrated brown-out detection: Prevents erratic behavior during voltage dips.
  • DMA controller: Enables high-throughput data movement without CPU intervention.
  • Compact 64-TQFP: Ideal for space-limited PCB layouts.

USB Peripherals

60MHz AVR core with DMA handles high-speed USB 2.0 data transfers in dongles and adapters.

IoT Sensor Nodes

Low 1.65V operation and brown-out detection enable reliable battery-powered environmental monitoring.

Motor Control

PWM channels drive BLDC motors in drones; WDT prevents firmware lockups.

Audio Processing

16K RAM buffers audio samples; DMA offloads CPU for real-time effects in portable speakers.

Industrial HMI

64KB flash stores UI graphics; TQFP package fits compact control panels.

Smart Lighting

PWM dimming and POR ensure smooth startup in LED drivers.

Q: What is the core architecture?
A: AVR 32-bit at 60MHz.
Q: How much flash?
A: 64KB.
Q: What is the RAM size?
A: 16K x 8.
Q: What voltage range?
A: 1.65V to 3.6V.
Q: What package?
A: 64-TQFP.
Base Product Number : AT32UC3B064
1.65V-3.6V 16K RAM 32-bit 60MHz 64-TQFP 64KB flash AT32UC3B064-A2UR Atmel audio AVR brown-out DMA HMI IoT lighting MCU motor control POR PWM USB WDT
Q: What is the core architecture?
A: AVR 32-bit at 60MHz.
Q: How much flash?
A: 64KB.
Q: What is the RAM size?
A: 16K x 8.
Q: What voltage range?
A: 1.65V to 3.6V.
Q: What package?
A: 64-TQFP.