"AT89C51单片机简介及功能特性概述-通信电子专业中英文翻译详解"
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The AT89C51 is a low voltage, high-performance CMOS 8-bit microcontroller with 4K bytes of programmable read-only memory (PENROM) and 128 bytes of random access memory (RAM). This device is manufactured using ATMEL's high-density, non-volatile storage technology and is compatible with the MCS-51 series of microcontrollers. The AT89C51 features an 8-bit central processing unit and flash storage unit, making it suitable for a wide range of control applications. Key features of the AT89C51 include 4K bytes of flash memory, 128 bytes of RAM, 32 I/O ports, 2 16-bit timers/counters, a 5-vector interrupt structure, a serial communication port, an on-chip oscillator, and a clock circuit. Additionally, the AT89C51 supports static logic operation at 0Hz and two software power saving modes. In idle mode, the central processor is halted while the RAM, timers/counters, serial communication port, and interrupt system continue to function. In power-down mode, the contents of the RAM are retained while the oscillator stops and all other components are disabled until the next reset. Pin descriptions for the AT89C51 include VCC for power supply, GND for ground, and P0 port which consists of 8 bits of open-drain bidirectional I/O for address/data. This microcontroller is widely used in communication and electronics industries for its robust performance and versatile features. In conclusion, the AT89C51 microcontroller is a powerful and versatile device with a wide range of applications in the control field. Its high-performance capabilities, compatibility with MCS-51 series, and various features make it a popular choice among designers and engineers in the communication electronics industry.
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