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[Books] AT89S52 DL : 0: Features • Compatible with MCS-51® Products • 8K Bytes of In-System Programmable (ISP) Flash Memory – Endurance: 1000 Write/Erase Cycles • 4.0V to 5.5V Operating Range • Fully Static Operation: 0 Hz to 33 MHz • Three-level Program Memory Lock • 256 x 8-bit Internal RAM • 32 Programmable I/O Lines • Three 16-bit Timer/Counters • Eight Interrupt Sources • Full Duplex UART Serial Channel • Low-power Idle and Power-down Modes • Interrupt Recovery from Power-down Mode • Watchdog Timer • Dual Data Pointer • Power-off Flag-Features
Date : 2026-01-09 Size : 208kb User : haojun
[Books] BlackBerry_Hacks_October_2005 DL : 0: BlackBerry Hacks will enhance your mobile computing with great tips and tricks. You ll learn that the BlackBerry is capable of things you never thought possible, and you ll learn how to make it an even better email and web workhorse: Get the most out of the built-in applications Take control of email with filters, searches, and more Rev up your mobile gaming--whether you re an arcade addict or poker pro Browse the web, chat over IM, and keep up with news and weblogs Work with office documents, spell check your messages, and send faxes Become more secure, lock down your BlackBerry and stash secure information somewhere safe Manage and monitor the BlackBerry Enterprise Server (BES) and Mobile Data System (MDS) Create web sites that look great on a BlackBerry Develop and deploy BlackBerry applications
Date : 2026-01-09 Size : 2.64mb User : Jack
[Books] Visualizing_Quaternions DL : 0: 详细论述了3D开发中的数学问题－4元数，从这本书中详细讲述了万向锁的问题，通过四元数的学习，你可以优化许多代码，提高系统效率-Discussed in detail in the 3D development of mathematical problem-ary number-4, this book describes in detail the issue of universal lock through quaternion learning, you can optimize the number of code, improve system efficiency
Date : 2026-01-09 Size : 5.75mb User : 清华
[Books] huibiandemimasuo DL : 0: 本系统由单片机系统、矩阵键盘、LED显示和报警系统组成。系统能完成开锁、超时报警、超次锁定、管理员解密、修改用户密码基本的密码锁的功能。除上述基本的密码锁功能外，还具有调电存储、声光提示等功能，依据实际的情况还可以添加遥控功能。本系统成本低廉，功能实用-The system consists of single-chip systems, matrix keyboard, LED display and alarm system. System to complete the unlock, overtime alarm, lock超次, administrators decrypt, modify the user s password locks the basic functions. In addition to the basic reactive locks can also have a transfer electric storage, sound and light features such as tips, according to the actual situation can also add a remote control function.
Date : 2026-01-09 Size : 4kb User : 李刚
[Books] SXH DL : 0: 手机锁相环的工作原理，说明锁相的作用与定义。-Mobile phase-locked loop works to illustrate the role and definition of lock-in.
Date : 2026-01-09 Size : 68kb User : 张建标
[Books] at89c51 DL : 0: 采用二个按键实现密码的输入功能，当密码输入正确之后，锁就打开，如果输入的三次的密码不正确，就锁定按键3秒钟，同时发现报警声，直到没有按键按下3种后，才打开按键锁定功能；否则在3秒钟内仍有按键按下，就重新锁定按键3秒时间并报警。-Cai Yong two key input to achieve the password, when the password is entered correctly Zhi Hou, lock will open, if the input of three of the password is correct, the lock button 3 seconds, Tongshifaxian alarm Sheng, Zhidaomoyou button press 3 after planting, just open the key lock function otherwise there within 3 seconds press the button, it re-lock button for 3 seconds and alarm.
Date : 2026-01-09 Size : 13kb User : 谢云辉
[Books] 1 DL : 0: Important paper concerning the phase lock loop.
Date : 2026-01-09 Size : 1.36mb User : ahmed
[Books] MINI-PCL-ELATCH-datasheet DL : 0: MINI-PCIe 52P封装尺寸图+锁扣-MINI-PCIe 52P package size chart+ lock
Date : 2026-01-09 Size : 265kb User : 无