W79E821ASG

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W79E821ASG is a 8-bit single-chip microcontroller developed by Winbond Electronics Corporation. It is designed for smart home appliances, personal computers, telecommunications and high-end consumer electronics products.

W79E821ASG is based on the 801E821ASG core, its internal periphery blocks, rich internal RAM and flash memory, making it integrated and full-featured. It is a highly integrated 8-bit microcontroller, ideal for applications such as communication devices, machine controllers, monitoring systems, audio / video products and wireless control systems.

W79E821ASG has high data processing capabilities, combining with a variety of data converters, enables it to accurately control the system\'s working states. It has powerful serial communication ports and can quickly provide an interface to the host computer. The series of W79E821ASG provide the real-time clock, which supports miscellaneous measurement precision of 1Hz to 10000Hz.

Features of W79E821ASG

• 8-bit 80C51 series microcontroller
• Operating voltage: 3V ~ 5.5V
• 16kB ISP / IAP Flash program memory
• 384 bytes of internal RAM
• External memory interface for up to 1MB of external Flash
• Real Time Clock (RTC)
• 4 I/O ports
• 4 external interrupts
• 5-channel 8-bit A/D converter
• Dual data buffers for serial port
• Power management and low power modes

Working Principle of W79E821ASG

W79E821ASG is a 8-bit single chip microcontroller based on the 801E821ASG core, which is used to control the operations of intelligent household appliances, personal computers, telecommunications and high-end consumer electronics products. The working principle of W79E821ASG is as follows.

Our W79E821ASG includes an internal 8-bit microprocessor and peripherals, such as RAM and flash, which form the core of the microcontroller operation. This 8-bit microprocessor is responsible for processing the instructions the user program gives and the commands to control other peripherals.

The instructions for operating the microcontroller are stored in the internal flash memory and RAM. The instructions can be programmed by users, such as C programming language, assembly language and so on. The commands can also be provided by other modules, such as DMA (data transfer, communication interface), interrupt controller, timer/counter, pulse width, serial port controller, and A/D converter.

The peripherals are the tools the microcontroller uses to achieve different functions. The timer/counter is used to set the timing of the equipment; the serial port controller can be used to receive external data; the analog/digital conversion module is used to detect analog values and convert them into digital values; the pulse width modulation module is used to adjust the Duty Cycle of the pulse waves; The interrupt controller is used to automatically detect the status of the microcontroller and interrupt the process; the DMA can also be used to communicate with other buses.

In short, the W79E821ASG is an integrated 8-bit microcontroller, which combines rich internal RAM and flash memory with a variety of peripherals and is an ideal choice for communication devices, machine controllers, monitoring systems, audio/video products and wireless control systems.

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