N79E823ASG

N79E823ASG application field and working principle

N79E823ASG is an 8-bit single-chip microcontroller originally developed by Nuvoton Technology. N79E823ASG integrates 128K bytes of flash memory, SRAM of 368 bytes, and various peripheral functions. It has an 8KB user Flash program (providing 8kb of Flash and 4KB of EEPROM). It also supports a 9-channel 10-bit A/D converter (8-channel on-chip, 1-channel external), 1 PWM, 6-channel 16-bit timer/counter, 1-channel UART and others.

Application Fields

• Home Appliances Control
• Industrial System Control and Automation Control
• Data Acquisition and Monitoring
• Security Image System
• Communication/Networking System

N79E823ASG is widely used in home appliances such as air conditioners, refrigerator, microwave ovens, and washing machines, etc.

Working Principle

N79E823ASG uses a harvard architecture with split flash and SRAM memory to allow fast data fetch and interaction between instruction and data memory. It has 8-bit processor cores, compliant with 78K0/Kx3/LBI instruction sets and providing programming of 8, 16 and 32 bit data and arithmetic.

The peripheral functions are accessed through the internal bus or GPIO ports on the chip, and the clock for operation and timing is the internal RC oscillator or external crystal clock.Its flash memory supports x8, x16 and x32 bit busses and supports an 8-level interrupt controller.

N79E823ASG can be used with 8-bit TTL, 8-bit CMOS, parallel LCD and other peripherals. In addition, Nuvoton provides a development suite, containing core/peripheral libraries, complete driver systems and sophisticated emulators, to facilitate the design and development of embedded systems.