Overview
The ATSAM3U4CA-CU is a 32-bit ARM Cortex-M3 RISC microcontroller from Microchip Technology, part of the SAM3U family. This microcontroller is designed for high-performance applications and features a robust set of peripherals and memory options. It operates at a maximum speed of 96 MHz and is equipped with dual-bank flash memory and significant SRAM. The device supports various interfaces, including high-speed USB, SDIO/SD/MMC, and multiple serial communication protocols. It is available in 100-pin LQFP and BGA packages, making it versatile for different design needs.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | ATSAM3U4CA-CU |
| CPU Type | ARM Cortex-M3 |
| Maximum Speed (MHz) | 96 |
| Program Memory Size (KB) | 256 |
| SRAM (KB) | 52 |
| Data EEPROM (bytes) | 0 |
| Temperature Range (°C) | -40 to +85 |
| Operation Voltage (V) | 1.62 to 3.6 |
| Direct Memory Access (DMA) Channels | 21 |
| SPI | 4 |
| I2C | 1 |
| UART | 3 |
| I2S | 1 |
| SDIO/SD-CARD/eMMC | 1 |
Key Features
- High-performance 32-bit ARM Cortex-M3 RISC processor with a maximum speed of 96 MHz.
- Dual-bank flash memory of 2x128KB with 128-bit wide access and memory accelerator.
- 52KB of embedded SRAM and 16KB of ROM with embedded bootloader routines.
- High Speed USB device and PHY at 480Mbps, SDIO/SD/MMC interface, and 16-bit external bus interface supporting NAND flash.
- Multiple serial communication interfaces including three USARTs, TWI (I2C), four SPIs, and I2S.
- Four PWM timers, three 16-bit timers, and a Real-Time Clock (RTC).
- Four 12-bit and four 10-bit ADCs.
- Embedded voltage regulator for single-supply operation and POR, BOD, and Watchdog for safe reset.
- Debug access via Serial Wire Debug Port (SW-DP) and Serial Wire JTAG Debug Port (SWJ-DP), and support for ASF-Atmel software Framework and RTOS integration.
Applications
The ATSAM3U4CA-CU is suitable for a wide range of high-performance applications, including:
- Industrial automation and control systems.
- Medical devices requiring precise and reliable data processing.
- Consumer electronics such as set-top boxes, digital audio players, and other multimedia devices.
- Automotive systems, including infotainment and navigation.
- Wireless and wired communication devices, leveraging its USB, SDIO, and serial communication capabilities.
Q & A
- What is the maximum operating speed of the ATSAM3U4CA-CU?
The ATSAM3U4CA-CU operates at a maximum speed of 96 MHz. - How much flash memory does the ATSAM3U4CA-CU have?
The device features 2x128KB of dual-bank flash memory. - What is the temperature range for the ATSAM3U4CA-CU?
The device operates within a temperature range of -40°C to +85°C. - Is the ATSAM3U4CA-CU RoHS compliant?
Yes, the ATSAM3U4CA-CU is RoHS compliant. - What types of packages are available for the ATSAM3U4CA-CU?
The device is available in 100-pin LQFP and BGA packages. - What debug features are supported by the ATSAM3U4CA-CU?
The device supports Serial Wire Debug Port (SW-DP), Serial Wire JTAG Debug Port (SWJ-DP), and other debug features like DWT, ITM, and IEEE1149.1 JTAG Boundary-scan. - Does the ATSAM3U4CA-CU support RTOS integration?
Yes, the device supports RTOS integration, with FreeRTOS being a core component. - What are the key peripherals included in the ATSAM3U4CA-CU?
The device includes High Speed USB, SDIO/SD/MMC, USARTs, TWI (I2C), SPIs, I2S, PWM timers, and RTC among others. - How can I check the stock and lead times for the ATSAM3U4CA-CU?
Stock availability and lead times can be checked on the comparison pages of authorized distributors. - Who can I contact for technical support of the ATSAM3U4CA-CU?
You can contact the customer support team of the distributor listing the product for technical support and other queries.
