per
共 108 篇文章
per 相关的电子技术资料，包括技术文档、应用笔记、电路设计、代码示例等，共 108 篇文章，持续更新中。
微波工程
5’ummary-A circularly symmetric power divider is described
which splits a signal into n equiphase equismplitude parts where n
can be odd or even. The power divider provides isolation between
output
SN74LS593.pdf
英文描述： 100mA, 12V,±5% Tolerance, Negative Voltage Regulator, Ta = -40°C to +125°C; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
中文描述： 8位输入寄存器与二进制计数器
SN74LS589.pdf
英文描述： 1A, 24V,±4% Tolerance, Negative Voltage Regulator, Ta = 0°C to +125°C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50
中文描述： 8位移位与输入锁存器和三态输出寄存器
SN74LS592.pdf
英文描述： 100mA, 5V,±5% Tolerance, Negative Voltage Regulator, Ta = -40°C to +125°C; Package: TO-92 (TO-226) 5.33mm Body Height; No of Pins: 3; Container: Tape and Reel; Qty per Container: 2000
中文描述： 8
SN74LS444.pdf
英文描述： 500mA, 15V,±4% Tolerance, Voltage Regulator, Ta = 0°C to +125°C; Package: DPAK 4 LEAD Single Gauge Surface Mount; No of Pins: 4; Container: Tape and Reel; Qty per Container: 2500
中文描述： 翻两番TRI
SN74LS442.pdf
英文描述： 500mA, 15V,±4% Tolerance, Voltage Regulator, Ta = -40°C to +125°C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50
中文描述： 翻两番TRIDIRECTIONAL总线收发器
SN74LS441.pdf
英文描述： 500mA, 15V,±4% Tolerance, Voltage Regulator, Ta = -40°C to +125°C; Package: DPAK 4 LEAD Single Gauge Surface Mount; No of Pins: 4; Container: Tape and Reel; Qty per Container: 2500
中文描述： 翻两番T
SN74LS449.pdf
英文描述： 500mA, 18V,±4% Tolerance, Voltage Regulator, Ta = 0°C to +125°C; Package: DPAK 4 LEAD Single Gauge Surface Mount; No of Pins: 4; Container: Tape and Reel; Qty per Container: 2500
中文描述： 翻两番总线收
SN74LS445.pdf
英文描述： 500mA, 15V,±4% Tolerance, Voltage Regulator, Ta = 0°C to +125cx0176;C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50
中文描述： BCD码到十进制解码器/驱动器
SN74LS446.pdf
英文描述： 500mA, 18V,±4% Tolerance, Voltage Regulator, Ta = -40°C to +125°C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50
中文描述： 翻两番总线收发器与个人的方向控制
SN74LS109N.pdf
英文描述： 500mA, 5V,±4% Tolereance, Voltage Regulator, Ta = -40°C to +125°C; Package: DPAK 4 LEAD Single Gauge Surface Mount; No of Pins: 4; Container: Rail; Qty per Container: 75
中文描述： 双JK上升沿触发器
3G.Evolution.HSPA.and.LTE.for.Mobile.Broadband
·【原书作者】： Erik Dahlman, Stefan Parkvall, Johan Skold and Per Beming【译者】：【ISBN 】： ISBN-10: 0123745381 / ISBN-13: 978-0123745385【页数 】：648【开本 】 ：【出版社】 ：Academic Press【出版日期】：October 3, 2008【文件格式】：PDF【封面附图】
比较XC2000 XC3000和XC52000,介绍将XC2000 XC3000设计转化成XC52000结构的方法
The new SRAM-based XC5200 FPGA family from Xilinx<BR>delivers the lowest cost-per-gate of any FPGA f
HI3306的评估板的使用
The HI3306 is a 6-bit analog-to-digital converter that is<BR>capable of 15MSPS (Million Samples Per
SNACCDLL
SNACC1.7 C++的动态库，可以做BER PER编码的库-SNACC1.7 C++ Of dynamic libraries
SA-1100与5V英特尔StrataFlash 存储器接口(涉及28F320J5 28F640J5)
<P>Capitalizing on two-bit-per-cell technology, IntelÒ<BR>StrataFlash™ memory devices p
以SHC5320为例，介绍器件引脚排列上的考虑可以避免信号耦合和减低采样 保持的基座错误
In most sampling systems, the inherent characteristics of the<BR>sample-hold dictate its overall per
了解开关模式电源降压功率级
A switching power supply consists of the power stage and the control circuit. The power<BR>stage per
ORCAD电流电压信号源简介
注意在PER 周期中不再包括起始延时时间TD.TSTEP和TSTOP分别为瞬态分析中的时间增量和结束时间.脉冲信号源的符号为:PULSE.在文本中的定义为ULSE(V1 V2 TD TR TF PW
基于STC89C52单片机的纸张计数显示装置设计
<p>笔者设计了基于STC89C52单片机的纸张计数显示装置。系统采用单片机STC89C52作为控制核心,实现通过555振荡电路获取频率值,应用单片机的控制功能和数学运算能力,实现计数和频率换算,用液晶1602显示测试张数并用蜂鸣器发出提示音。测频的基本方法是通过555振荡器以及单片机的定时计数器计数获得频率值,采用最小二乘法进行线性回归,得到1~10张纸的计算公式,通过二次函数回归,得到15张纸