嵌入式CAN轉UART模塊 CSM100系列產品手冊 CSM100系列UART轉CAN 模塊是集成微處理器、CAN-bus控制器、CAN-bus收發器、DC-DC轉換、高速光電隔離于一體的嵌入式CAN轉UART模塊。
上傳時間: 2014-01-03
上傳用戶: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.
標簽: PROGRAMMER-TO PICKIT 8482
上傳時間: 2013-10-29
上傳用戶:ca05991270
本文著重介紹高效低紋波DC-DC降壓穩壓器SCY99090的特性、典型應用電路、電路中元器件的選型以及PCB的布局。
上傳時間: 2014-12-27
上傳用戶: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.
上傳時間: 2013-10-09
上傳用戶:3294322651
ZY00xxGD-10W是廣州致遠電子研制的寬壓輸入隔離穩壓電源系列模塊,其轉換效率高,高低溫度特性好,帶容性負載能力強,具有短路保護等功能。國際標準引腳方式,自然冷卻,無需外加散熱片,無需外加元件可直接使用,并可直接焊在PCB板上。連接簡單,是您的前級電源理想解決方案。
上傳時間: 2014-12-28
上傳用戶:372825274
ZY00xxGD-15W是廣州致遠電子研制的寬壓輸入隔離穩壓電源系列模塊,其轉換效率高,高低溫度特性好,帶容性負載能力強,具有短路保護等功能。國際標準引腳方式,自然冷卻,無需外加散熱片,無需外加元件可直接使用,并可直接焊在PCB板上。連接簡單,是您的前級電源理想解決方案。
上傳時間: 2013-11-05
上傳用戶:風為裳的風
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.
標簽: MULTICHANNEL 5.5 TO RS
上傳時間: 2013-10-19
上傳用戶:ddddddd
DPM-S PROFIBUS嵌入式從站模塊適用于自主開發PROFIBUS-DP從站設備,且不需要掌握PROFIBUS-DP相關理論知識,通過修改幾行必要的代碼就可以方便的將您的設備接入PROFIBUS網絡。DPM-S系列模塊提供一個全隔離PROFIBUS通訊接口,支持高達12Mbps通訊速率,隔離電壓達DC 3000V,并集成增強的ESD保護,可以保護用戶設備在網絡中可靠工作。用戶可以通過串行UART/SPI接口,或并行總線接口來訪問DPM-S系列模塊,實現高速實時的數據傳輸。
標簽: PROFIBUS-DP 通訊模塊
上傳時間: 2014-12-28
上傳用戶:561596
51單片機實訓指南:一、 實習課題基于單片機最小系統的頻率計設計二、 實習內容單片機最小系統電路原理設計分析與講解,PCB設計分析與講解,電路板焊接培訓與實際操作,程序設計、調試分析與講解,程序調試實際操作。三、硬件資源※ 89S51單片機;※ 6位共陽極數碼管;※ 段碼驅動器74HC573,位選譯碼器74HC138;※ 4路獨立式按鍵;※ 外部晶振電路;※ ISP下載接口(In system program,在系統編程);※ DC+5V電源試配器(選配);※ ISP下載線(選配);※ 單片機實訓模塊(頻率計分頻預處理電路)。四、電路原理分析與設計P1為外部電源輸入座(DC+5V),S8為電源最小系統的電源開關,E1和C3為電源濾波,去耦電容。D1為系統電源指示燈。J2為ISP下載接口,S7系統復位按鍵。CRY1,C1,C2為外部時針電路。IC1為89S51(DIP-40),左上角為第一腳。PRE1,PRE2。為上拉排阻(阻值4.7k—10k)。J5,J9,J6,J10分別對應單片機的P0,P1,P2,P3口。便于二次開發。6路共陽極數碼管動態顯示電路,P0口通過74HC573(起驅動和隔離作用,讓電流通過74CH573流入公共地),來控制數碼管的8路段碼,P20-P22通過74HC138譯碼器(使用其中的6路)控制數碼管的公共端(中間還有三極管做驅動器)。這樣設計的理由:為了保證該單片機最小系統的二次開發的資源充足和合理性。
標簽: 51單片機
上傳時間: 2013-10-14
上傳用戶:ryb
高壓雙管反激變換器的設計:介紹一種雙管反激的電路拓撲,分析了其工作原理,給出了一些關鍵技術參數的計算公式,設計并研制成功的30W 380V AC5 0H z/510V DC/+15.1 V DC(1A )、+5.2VDC(2A)輔助開關電源具有功率密度高、變換效率高、可靠性高等優良的綜合性能。該變換器在高電壓輸人情況下有重要的應用價值。【關 鍵 詞 】變換器,輔助開關電源,雙管反激 [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
上傳時間: 2013-11-01
上傳用戶:Ants