仕様
| 属性 | 値 |
| Package / Case | Tray |
| Series | SAM3A |
| Part Status | Active |
| Core Processor | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core |
| Speed | 84MHz |
| Connectivity | CANbus, I²C, IrDA, LINbus, MMC, SPI, SSC, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Number of I/O | 63 |
| Program Memory Size | 256KB (256K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 64K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V |
| Data Converters | A/D 16x12b; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概要
Description
The ATSAM3A4CA-AU is a 32-bit ARM Cortex-M3 microcontroller from Microchip’s SAM3A series. It operates at 84 MHz, features 256 KB Flash, 48 KB SRAM, and integrates peripherals like USB, USART, SPI, I2C, and ADCs. Designed for industrial, automotive, and consumer applications, it supports 3.3V operation and offers robust real-time control with low power consumption. The -AU suffix indicates a 100-pin LQFP package. Key strengths include high performance, connectivity options, and reliability, making it suitable for embedded systems requiring efficient processing and communication.
Equivalent
Equivalent products to the ATSAM3A4CA-AU (ARM Cortex-M3 MCU) include:
- ATSAM3A8CA-AU (higher flash)
- ATSAM3X8E-AU (similar specs, USB)
- STM32F205RG (ST, comparable Cortex-M3)
- LPC1768 (NXP, similar M3 core)
- EFM32TG11B520F128 (Silicon Labs, low-power alternative).
Check pin compatibility and peripherals for direct swaps.
- ATSAM3A8CA-AU (higher flash)
- ATSAM3X8E-AU (similar specs, USB)
- STM32F205RG (ST, comparable Cortex-M3)
- LPC1768 (NXP, similar M3 core)
- EFM32TG11B520F128 (Silicon Labs, low-power alternative).
Check pin compatibility and peripherals for direct swaps.
Features
The ATSAM3A4CA-AU is a 32-bit ARM Cortex-M3 microcontroller from Microchip. Key features:
- Core: 84 MHz Cortex-M3 with 256 KB Flash, 48 KB SRAM.
- Peripherals: USB 2.0 (Device & Host), CAN, USART, SPI, I²C, ADC (12-bit, 16 ch), DAC (12-bit).
- Timers: 3x 16-bit TC, 2x 32-bit TC, RTC, PWM.
- Operating Voltage: 1.62V–3.6V.
- Packaging: 64-pin LQFP.
- Temp Range: -40°C to +85°C.
- Security: Hardware CRC, Watchdog Timer.
Ideal for industrial, automotive, and embedded applications.
- Core: 84 MHz Cortex-M3 with 256 KB Flash, 48 KB SRAM.
- Peripherals: USB 2.0 (Device & Host), CAN, USART, SPI, I²C, ADC (12-bit, 16 ch), DAC (12-bit).
- Timers: 3x 16-bit TC, 2x 32-bit TC, RTC, PWM.
- Operating Voltage: 1.62V–3.6V.
- Packaging: 64-pin LQFP.
- Temp Range: -40°C to +85°C.
- Security: Hardware CRC, Watchdog Timer.
Ideal for industrial, automotive, and embedded applications.
Application
The ATSAM3A4CA-AU is a 32-bit ARM Cortex-M3 microcontroller from Microchip, suited for:
- Industrial Automation: PLCs, motor control, and sensors.
- Consumer Electronics: Smart home devices and wearables.
- Medical Devices: Portable diagnostic equipment.
- Automotive Systems: Body control modules and infotainment.
- IoT & Embedded Systems: Low-power connected devices.
It features high performance, low power consumption, and robust peripherals (USB, CAN, ADC, etc.), making it ideal for real-time control and connectivity applications.
- Industrial Automation: PLCs, motor control, and sensors.
- Consumer Electronics: Smart home devices and wearables.
- Medical Devices: Portable diagnostic equipment.
- Automotive Systems: Body control modules and infotainment.
- IoT & Embedded Systems: Low-power connected devices.
It features high performance, low power consumption, and robust peripherals (USB, CAN, ADC, etc.), making it ideal for real-time control and connectivity applications.
Package
The ATSAM3A4CA-AU is a microcontroller from Microchip's SAM3A series, based on ARM Cortex-M3. It comes in a 100-pin LQFP (Low-profile Quad Flat Package) with dimensions of 14×14 mm. This package type is surface-mountable, offering a compact footprint while maintaining good thermal and electrical performance for industrial and embedded applications.
