1、 华中科技大学文华学院 毕业设计（论文）外文文献翻译 题 目： 单片微机在温室控制中的应用 学 生 姓 名： 尤龙 学号： 080302031114 学 部 （系）： 机械与电气工程学部 专 业 年 级： 08 机械设计制造找及其自动化 指 导 教 师： 程宪平 职称或学位： 教授 2012 年 5 月 25 日 外文文献翻译（译成中文 1000 字左右）： 【主要阅读文献不少于 5 篇，译文后附注文献信息，包 括：作者、书名（或论文题目）、出版社（或刊物名称）、出版时间（或刊号）、页码。提供所译外文资料附件（印刷类含封面、封底、目录、翻译部分的复印件等网站类的请附网址及原文）】 外文文献：
2、1. Description The AT89C52 is a low-power, high-performance CMOS 8-bit microcomputer with 8K bytes of Flash programmable and erasable read only memory(PEROM). The device is manufactured using Atmels high density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C
3、52 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C52 is a powerful microcomputer which provides a highly flexib
4、le and cost effective solution to many embedded control applications. 2.Features Compatible with MCS-51 TM Products 8K Bytes of In-System Reprogrammable Flash Memory Endurance: 1,000 Write/Erase Cycles Fully Static Operation: 0 Hz to 24 MHZ Three-Level Program Memory Lock 256 x 8-Bit Internal RAM 32
5、 Programmable I/O Lines .Three 16-bit Timer/Counters Eight interrupt Sources Programmable Serial Channel Low Power Idle and Power Down Modes The AT89C52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, three 16-bit timer/counters， a six-vector two-level in
6、terrupt architecture,a full duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89C52 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes.The Idle Mode stops the CPU while allowing the RAM, timer/counters,serial port, and interrupt system to continue functioning. The Power Down Mode saves the RAM contents but feezes the oscillator, disabling all other chip functions until the next hardware
