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ATSAM3U4CA-CU: The Perfect MCU for Your Next Embedded Design

The ATSAM3U4CA-CU is a powerful and versatile microcontroller (MCU) that is perfect for a wide range of embedded applications. It features a 32-bit ARM Cortex-M4 core running at up to 120 MHz, along with a rich set of peripherals and interfaces. This makes it an ideal choice for applications that require high performance, low power consumption, and a small footprint.

Key Features of the ATSAM3U4CA-CU

32-bit ARM Cortex-M4 core running at up to 120 MHz
512 KB of flash memory
96 KB of SRAM
Rich set of peripherals and interfaces, including:
- Two CAN controllers
- Two USARTs
- Two SPIs
- Two I2Cs
- One USB 2.0 device port
- One 10-bit ADC with 16 channels
- One 12-bit DAC with 2 channels
Small footprint: 7 mm x 7 mm QFN package

Benefits of Using the ATSAM3U4CA-CU

The ATSAM3U4CA-CU offers a number of benefits over other MCUs in its class. These benefits include:

High performance: The ATSAM3U4CA-CU's Cortex-M4 core provides excellent performance for a wide range of applications. It is capable of executing up to 120 million instructions per second (MIPS), making it ideal for applications that require real-time processing.
Low power consumption: The ATSAM3U4CA-CU is designed to be power efficient, making it ideal for battery-powered applications. It features several power-saving modes, including sleep mode, deep sleep mode, and standby mode.
Small footprint: The ATSAM3U4CA-CU's small footprint makes it ideal for applications where space is limited. It is available in a 7 mm x 7 mm QFN package, which is one of the smallest packages available for a 32-bit MCU.

Applications for the ATSAM3U4CA-CU

The ATSAM3U4CA-CU is a versatile MCU that can be used in a wide range of applications. Some of the most common applications include:

ATSAM3U4CA-CU

Industrial automation
Medical devices
Consumer electronics
Automotive electronics
Aerospace and defense

How to Get Started with the ATSAM3U4CA-CU

Getting started with the ATSAM3U4CA-CU is easy. Microchip provides a number of resources to help you get started, including:

Datasheet
User guide
Application notes
Software development kits (SDKs)

Conclusion

The ATSAM3U4CA-CU is a powerful and versatile MCU that is perfect for a wide range of embedded applications. It offers high performance, low power consumption, and a small footprint. This makes it an ideal choice for applications that require real-time processing, long battery life, and a small form factor.

Additional Resources

FAQs

1. What is the difference between the ATSAM3U4CA-CU and the ATSAM3U4CA-AU?

ATSAM3U4CA-CU: The Perfect MCU for Your Next Embedded Design

Key Features of the ATSAM3U4CA-CU

The ATSAM3U4CA-CU is a higher-performance version of the ATSAM3U4CA-AU. It features a faster core speed (120 MHz vs. 84 MHz) and more flash memory (512 KB vs. 256 KB).

2. What are the power consumption modes of the ATSAM3U4CA-CU?

The ATSAM3U4CA-CU has four power consumption modes:

Active mode: The MCU is running normally.
Sleep mode: The MCU is in a low-power state, but it can be woken up by an interrupt.
Deep sleep mode: The MCU is in a deeper low-power state, but it can still be woken up by an interrupt.
Standby mode: The MCU is in a very low-power state, and it can only be woken up by a reset.

3. What is the pinout of the ATSAM3U4CA-CU?

The pinout of the ATSAM3U4CA-CU is available in the datasheet.

4. What are the development tools available for the ATSAM3U4CA-CU?

Microchip provides a number of development tools for the ATSAM3U4CA-CU, including:

MPLAB X IDE
MPLAB XC32 compiler
MPLAB ICD 3 debugger

5. Where can I buy the ATSAM3U4CA-CU?

The ATSAM3U4CA-CU is available from a number of distributors, including:

1. What is the difference between the ATSAM3U4CA-CU and the ATSAM3U4CA-AU?

Digi-Key
Mouser
Avnet

6. How can I learn more about the ATSAM3U4CA-CU?

You can learn more about the ATSAM3U4CA-CU by visiting the following resources:

Microchip website
ATSAM3U4CA-CU datasheet
ATSAM3U4CA-CU user guide
ATSAM3U4CA-CU application notes
ATSAM3U4CA-CU software development kits (SDKs)

Tables

Table 1. Key Features of the ATSAM3U4CA-CU

Feature	Value
Core	32-bit ARM Cortex-M4
Clock speed	Up to 120 MHz
Flash memory	512 KB
SRAM	96 KB
Peripherals and interfaces	Two CAN controllers, two USARTs, two SPIs, two I2Cs, one USB 2.0 device port, one 10-bit ADC with 16 channels, one 12-bit DAC with 2 channels
Package	7 mm x 7 mm QFN

Table 2. Benefits of Using the ATSAM3U4CA-CU

Benefit	Value
High performance	Up to 120 MIPS
Low power consumption	Several power-saving modes
Small footprint	7 mm x 7 mm QFN package

Table 3. Applications for the ATSAM3U4CA-CU

Application	Value
Industrial automation	Control systems, robotics, motor control
Medical devices	Patient monitoring, diagnostic equipment, surgical tools
Consumer electronics	Smartphones, tablets, TVs, gaming consoles
Automotive electronics	Engine control, transmission control, braking systems
Aerospace and defense	Avionics, navigation systems, weapons systems

Table 4. Common Mistakes to Avoid When Using the ATSAM3U4CA-CU

Mistake	How to avoid it
Using the wrong power supply	Use a power supply that meets the ATSAM3U4CA-CU's power requirements.
Not connecting the ground pins	Connect all of the ATSAM3U4CA-CU's ground pins to a common ground.
Not using the correct crystal	Use a crystal that meets the ATSAM3U4CA-CU's crystal requirements.
Not programming the flash memory	Program the flash memory with the correct firmware before using the ATSAM3U4CA-CU.