AT91SAM7S64C-AU vs PIC16F873-20/SO
| Part Number |
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| Category | Embedded - Microcontrollers | Embedded - Microcontrollers |
| Manufacturer | Microchip Technology | Microchip Technology |
| Description | IC MCU 16/32BIT 64KB FLSH 64LQFP | IC MCU 8BIT 7KB FLASH 28SOIC |
| Package | Tray | Bulk |
| Series | SAM7S | PIC® 16F |
| Operating Temperature | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 64-LQFP | 28-SOIC (0.295\", 7.50mm Width) |
| Supplier Device Package | 64-LQFP (10x10) | 28-SOIC |
| Voltage - Supply (Vcc/Vdd) | 1.65V ~ 1.95V | 4V ~ 5.5V |
| Speed | 55MHz | 20MHz |
| Number of I/O | 32 | 22 |
| EEPROM Size | - | 128 x 8 |
| Core Processor | ARM7® | PIC |
| RAM Size | 16K x 8 | 192 x 8 |
| Core Size | 16/32-Bit | 8-Bit |
| Connectivity | I²C, SPI, SSC, UART/USART, USB | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT |
| Program Memory Size | 64KB (64K x 8) | 7KB (4K x 14) |
| Program Memory Type | FLASH | FLASH |
| Data Converters | A/D 8x10b | A/D 5x10b |
| Oscillator Type | Internal | External |
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1. Is Arduino an embedded microcontroller?
Arduino is an embedded microcontroller platform based on open source hardware and software. It contains a microcontroller (MCU) and related modules that can interact with the external environment through hardware and software. The core board of Arduino consists of a microcontroller and related modules, with basic input and output connections and multiple communication interfaces, including serial ports, SPI and TWI, etc., which can communicate and transfer data with other devices.
Features of Arduino include:
Development environment: Arduino comes with a software development environment that can be programmed in C and C++ languages.
Libraries and functions: It has a rich hardware library and functions for rapid development.
Low cost: It is suitable for hardware development such as sensors, simple robots, thermostats and motion detectors, with low cost and simple operation.
Wide application: It is commonly used in projects such as IoT products, automation control and robots.
Compared with other microcontroller platforms, the advantage of Arduino is its simple and easy-to-use hardware and software tools, which enable electronic enthusiasts and general users to quickly realize various application projects. -
2. Is Raspberry Pi an embedded system?
Raspberry Pi is an embedded system. Raspberry Pi is a single-board computer based on ARM architecture with rich input and output interfaces and powerful computing power. It can run the Linux operating system and support multiple programming languages such as Python and C++. Due to its compact size and powerful functions, Raspberry Pi is widely used in various embedded systems and robotics projects.
Features of Raspberry Pi include:
Based on ARM architecture: Raspberry Pi adopts ARM architecture, which is an architecture widely used in embedded systems with low power consumption and high efficiency.
Rich interfaces: It has USB interface, Fast Ethernet interface, SD slot, HDMI output interface, etc., and can connect a variety of peripherals.
Open source software support: It supports multiple programming languages and a large number of open source software libraries, which is convenient for development and expansion.
Wide application: It is often used to build routers, smart cars, smart homes, servers and other applications.
Disadvantages of Raspberry Pi include:
Single 5V power supply: The power supply design is simple, which may cause unstable operation of peripherals.
Bandwidth limitation: The USB interface has limited bandwidth and may encounter performance bottlenecks when transmitting large amounts of data. -
3. Is Raspberry Pi a microcontroller?
Raspberry Pi is not a microcontroller in the traditional sense. Raspberry Pi is a microcomputer, often called a single-board computer, which has more powerful computing power and more functions, including writing code directly on the device and running multiple programming languages.
Raspberry Pi has some features of a microcontroller, such as it also has GPIO (general input and output) pins, which can control external devices through these pins. In addition, Raspberry Pi can also be used for the development of embedded systems, especially in application scenarios that require higher computing power. -
4. What language is used for embedded microcontroller programming?
The main languages used for embedded microcontroller programming include C, C++, assembly language, Python and Rust. These languages have their own characteristics and are suitable for different development needs and scenarios.
C is one of the most commonly used languages in embedded development. It has the advantages of high efficiency, flexibility, and strong portability. It can directly operate hardware and is suitable for low-level driver development, kernel programming, etc. C++ is used in complex embedded systems and adds object-oriented features, which is suitable for the development of large applications. Although assembly language is difficult to learn and write, it is indispensable in scenarios that require high optimization and direct control of hardware. Python is easy to learn and use, and is often used in data processing, prototype development, and rapid testing. Rust is gradually gaining attention in the embedded field due to its memory safety and high performance, especially in applications with high security requirements.
