N79E875ALG

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N79E875ALG is an 8-bit single-chip microcontroller launched by Nuvoton Technology Corporation and based on the 8051 core. It has the characteristics of low cost, high integration and high performance. This microcontroller can be applied in various industrial field such as smart home appliances, home health care, personal sports, environmental monitoring and so on.

N79E875ALG includes CPU, ROM, RAM, peripheral control unit, and I/O port unit. CPU core is a streamlined 8051 embedded core. It adopts the CPU architecture of pipeline and carries out multicycle instructions. Its core frequency is superior to the 8051 processor and is two times faster than traditional microprocessors.

The ROM of N79E875ALG is mainly used to store the main programs, users need not worry about the power off and other issues, and it can maintain the effective running of the device when power is off. The RAM is usually used to store data and information and process temporarily. Meanwhile, N79E875ALG provides a variety of external resources, including peripheral control unit, which can provide various functional and functional interrupt control, Timer/Counter control and serial port control; I/O port unit, which can realize the external device connection, including more than 16 I/Os and 6 output ports, 4 channel A/D ports, and one module interface.

The working principle of N79E875ALG is based on the 8051 architecture. It uses an internal clock or external crystal oscillator as the clock for the microcontroller. The 8051 core is the main part of the N79E875ALG microcontroller. This core contains an 8-bit Arithmetic logic unit(ALU). Its instruction set includes NOP, MOV, ADD, SUB, CMP, AND, OR, XOR, JMP, CALL, RET and so on. ALU executes the instructions and saves them in a RAM or a ROM.

N79E875ALG has two power supply modes, single-level and hybrid. When single-level power supply is adopted, the supply voltage of VDD can be selected between 3.3V and 5.0V. And the entire chip operates at the same voltage level, which simplifies the system design. Hybrid power supply mode uses different levels of supply voltage to reduce power consumption. The core operating voltage is usually 3.3V, while other non-core logic supplies 1.8V or lower voltage. When the device is used in this mode, the power consumption can be reduced significantly.

In summary, N79E875ALG is an 8-bit single-chip microcontroller based on the 8051 core. Its instruction set includes NOP, MOV, ADD, SUB, CMP, AND, OR, XOR, JMP, CALL, RET and so on. Its application fields are mainly smart home appliances, home health care, personal sports and environmental monitoring. Its power supply can be single-level or hybrid and its voltage can range from 3.3V to 5.0V, which makes it suitable for various application scenarios.

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