嵌入式CAN转UART模块 CSM100系列产品手册 CSM100系列UART转CAN 模块是集成微处理器、CAN-bus控制器、CAN-bus收发器、DC-DC转换、高速光电隔离于一体的嵌入式CAN转UART模块。
上传时间: 2014-01-03
上传用户:caixiaoxu26
PICKIT™ 2 PROGRAMMER-TO-GO USER GUIDE The PICkit 2 Programmer-To-Go functionality allows a PIC MCU memory image to be downloaded into the PICkit 2 unit for later programming into a specific PIC MCU. No software or PC is required to program devices once the PICkit 2 unit is set up for Programming-To-Go. A USB power source for the PICkit 2 is all that is needed.
标签: PROGRAMMER-TO PICKIT 8482
上传时间: 2013-10-29
上传用户:ca05991270
本文着重介绍高效低纹波DC-DC降压稳压器SCY99090的特性、典型应用电路、电路中元器件的选型以及PCB的布局。
上传时间: 2014-12-27
上传用户:swaylong
The PCA9541 is a 2-to-1 I2C-bus master selector designed for high reliability dual masterI2C-bus applications where system operation is required, even when one master fails orthe controller card is removed for maintenance. The two masters (for example, primaryand back-up) are located on separate I2C-buses that connect to the same downstreamI2C-bus slave devices. I2C-bus commands are sent by either I2C-bus master and are usedto select one master at a time. Either master at any time can gain control of the slavedevices if the other master is disabled or removed from the system. The failed master isisolated from the system and will not affect communication between the on-line masterand the slave devices on the downstream I2C-bus.
上传时间: 2013-10-09
上传用户:3294322651
ZY00xxGD-10W是广州致远电子研制的宽压输入隔离稳压电源系列模块,其转换效率高,高低温度特性好,带容性负载能力强,具有短路保护等功能。国际标准引脚方式,自然冷却,无需外加散热片,无需外加元件可直接使用,并可直接焊在PCB板上。连接简单,是您的前级电源理想解决方案。
上传时间: 2014-12-28
上传用户:372825274
ZY00xxGD-15W是广州致远电子研制的宽压输入隔离稳压电源系列模块,其转换效率高,高低温度特性好,带容性负载能力强,具有短路保护等功能。国际标准引脚方式,自然冷却,无需外加散热片,无需外加元件可直接使用,并可直接焊在PCB板上。连接简单,是您的前级电源理想解决方案。
上传时间: 2013-11-05
上传用户:风为裳的风
The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge)protection on serial-port connection pins. The device meets the requirements of TIA/EIA-232-F and provides theelectrical interface between an asynchronous communication controller and the serial-port connector. Thiscombination of drivers and receivers matches that needed for the typical serial port used in an IBM PC/AT, orcompatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-Vsupply. In addition, the device includes an always-active noninverting output (ROUT2B), which allowsapplications using the ring indicator to transmit data while the device is powered down. The device operates atdata signaling rates up to 250 kbit/s and a maximum of 30-V/ms driver output slew rate.
标签: MULTICHANNEL 5.5 TO RS
上传时间: 2013-10-19
上传用户:ddddddd
DPM-S PROFIBUS嵌入式从站模块适用于自主开发PROFIBUS-DP从站设备,且不需要掌握PROFIBUS-DP相关理论知识,通过修改几行必要的代码就可以方便的将您的设备接入PROFIBUS网络。DPM-S系列模块提供一个全隔离PROFIBUS通讯接口,支持高达12Mbps通讯速率,隔离电压达DC 3000V,并集成增强的ESD保护,可以保护用户设备在网络中可靠工作。用户可以通过串行UART/SPI接口,或并行总线接口来访问DPM-S系列模块,实现高速实时的数据传输。
标签: PROFIBUS-DP 通讯模块
上传时间: 2014-12-28
上传用户:561596
51单片机实训指南:一、 实习课题基于单片机最小系统的频率计设计二、 实习内容单片机最小系统电路原理设计分析与讲解,PCB设计分析与讲解,电路板焊接培训与实际操作,程序设计、调试分析与讲解,程序调试实际操作。三、硬件资源※ 89S51单片机;※ 6位共阳极数码管;※ 段码驱动器74HC573,位选译码器74HC138;※ 4路独立式按键;※ 外部晶振电路;※ ISP下载接口(In system program,在系统编程);※ DC+5V电源试配器(选配);※ ISP下载线(选配);※ 单片机实训模块(频率计分频预处理电路)。四、电路原理分析与设计P1为外部电源输入座(DC+5V),S8为电源最小系统的电源开关,E1和C3为电源滤波,去耦电容。D1为系统电源指示灯。J2为ISP下载接口,S7系统复位按键。CRY1,C1,C2为外部时针电路。IC1为89S51(DIP-40),左上角为第一脚。PRE1,PRE2。为上拉排阻(阻值4.7k—10k)。J5,J9,J6,J10分别对应单片机的P0,P1,P2,P3口。便于二次开发。6路共阳极数码管动态显示电路,P0口通过74HC573(起驱动和隔离作用,让电流通过74CH573流入公共地),来控制数码管的8路段码,P20-P22通过74HC138译码器(使用其中的6路)控制数码管的公共端(中间还有三极管做驱动器)。这样设计的理由:为了保证该单片机最小系统的二次开发的资源充足和合理性。
标签: 51单片机
上传时间: 2013-10-14
上传用户:ryb
高压双管反激变换器的设计:介绍一种双管反激的电路拓扑,分析了其工作原理,给出了一些关键技术参数的计算公式,设计并研制成功的30W 380V AC5 0H z/510V DC/+15.1 V DC(1A )、+5.2VDC(2A)辅助开关电源具有功率密度高、变换效率高、可靠性高等优良的综合性能。该变换器在高电压输人情况下有重要的应用价值。【关 键 词 】变换器,辅助开关电源,双管反激 [Abstract】 A n e wt opologyfo rd oubles witchfl ybackc onverteris in troduced.Th eo perationp rincipleis a nalyzeda nds ome for mulas for calculating key parameters for the topology are presented. The designed and produced auxiliary switching power supply,i. e. 30W 380V AC5 0H z/5 10V DC/+15.1 V DC《1A )、+5.2 V DC《2A ),hase xcellentc omprehensivep erformances sucha sh ighp owerd ensity, hi ghc onversione fficiencya ndh ighr eliability.Th isc onverterh asim portanta pplicationv aluef orh igh input voltag [Keywords ]converter,au xiliary switchingp owers upply,do ubles witchf lybac
上传时间: 2013-11-01
上传用户:Ants