AT91SAM7S64C-AU vs PIC16F77-I/L
| 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 14KB FLASH 44PLCC |
| Package | Tray | Cut Tape (CT) |
| Series | SAM7S | PIC® 16F |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 64-LQFP | 44-LCC (J-Lead) |
| Supplier Device Package | 64-LQFP (10x10) | 44-PLCC (16.59x16.59) |
| Voltage - Supply (Vcc/Vdd) | 1.65V ~ 1.95V | 4V ~ 5.5V |
| Speed | 55MHz | 20MHz |
| Number of I/O | 32 | 33 |
| EEPROM Size | - | - |
| Core Processor | ARM7® | PIC |
| RAM Size | 16K x 8 | 368 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) | 14KB (8K x 14) |
| Program Memory Type | FLASH | FLASH |
| Data Converters | A/D 8x10b | A/D 8x8b |
| Oscillator Type | Internal | External |
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1. What is the most widely used microcontroller in embedded systems?
The most widely used microcontroller in embedded systems is the STM32 series. The STM32 series microcontroller is a chip series widely used in embedded system development, and is favored for its high performance, low power consumption and rich peripheral resources.
The STM32 series of microcontrollers has a variety of models and derivatives suitable for different application requirements. These microcontrollers usually integrate components such as CPU, ROM, RAM, IO ports, timers, interrupt controllers, etc., which can meet the needs of various application scenarios. The STM32 series of microcontrollers play an important role in the fields of household appliances, automotive electronics and medical equipment.
The wide application of the STM32 series of microcontrollers is due to its powerful functions and flexibility. It is not only suitable for controlling various electrical and electronic equipment, but also performs well in occasions requiring high-performance computing. In addition, the development tools and community support of the STM32 series of microcontrollers are also very complete, allowing developers to quickly get started and develop efficiently. -
2. What is the difference between Arduino and Embedded C?
The main differences between Arduino and Embedded C are their application scenarios, development difficulty and hardware design. Arduino is more suitable for rapid prototyping and teaching, while Embedded C is suitable for scenarios that require high performance and professional applications.
Arduino is an open source hardware platform mainly used for rapid prototyping and teaching. It uses high-level programming languages such as C++ and provides an easy-to-use development environment, allowing beginners to quickly get started and implement projects. In contrast, embedded C is often used in high-performance and professional application scenarios, such as industrial control, automotive electronics and other fields. Embedded C programming usually involves low-level hardware knowledge and more complex programming skills. The language used may be C or C++, but memory and hardware resources need to be managed manually. -
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 is STM32 embedded?
STM32 is a microcontroller suitable for control applications. It comes with various commonly used communication interfaces, such as USART, I2C, SPI, etc., and can control a variety of devices. In real life, many electrical products we come into contact with have STM32, such as smart bracelets, micro quadcopters, balance cars, mobile POS machines, smart rice cookers, 3D printers, etc.
An embedded system is a special computer system centered on applications, based on computer technology, and with customizable software and hardware. It requires small size, high reliability, low power consumption, and stable performance. The embedded system is divided into hardware layer, driver layer, operating system layer, and application layer. The hardware layer is the foundation of the entire system. The driver layer needs to write a driver program to enable the hardware to communicate with the operating system. The operating system layer is responsible for task scheduling and management, and the application layer is the interface and function implementation for direct user interaction.
