AT89S52-24单片机最小系统开发板ALTIUM设计硬件原理图+PCB文件,2层板设计，大小为121x149mm，Altium Designer 设计的工程文件，包括完整的原理图及PCB文件，可以用Altium(AD)软件打开或修改，可作为你的产品设计的参考。主要器件型号列表如下：Library Component Count : 14Name Description----------------------------------------------------------------------------------------------------AT89S52-P 8 位微处理器/40引脚CAP CapacitorCAPACITOR POL CapacitorCRYSTAL CrystalD Connector 9 Receptacle Assembly, 9 Position, Right AngleHeader 2 Header, 2-PinHeader 4 Header, 4-PinHeader 5X2 Header, 5-Pin, Dual rowLED MAX232PZ_9 排针——9RES2SW-DPST Double-Pole, Single-Throw SwitchSW-PB Switch
上传时间： 2021-11-17
上传用户：
AT89S52单片机主8入8出继电器工控主板ALTIUM设计硬件原理图+PCB文件,2层板设计，大小为121x149mm，Altium Designer 设计的工程文件，包括完整的原理图及PCB文件，可以用Altium(AD)软件打开或修改，可作为你的产品设计的参考。主要器件型号列表如下：Library Component Count : 25Name Description----------------------------------------------------------------------------------------------------24LC02AJKG 按键开关AT89S52-P 8 位微处理器/40引脚CAP CapacitorCAPACITOR POL CapacitorCPDR 瓷片电容CRYSTAL CrystalD Connector 9 Receptacle Assembly, 9 Position, Right AngleDG 电感DJDR 电解电容GO 光耦Header 5X2 Header, 5-Pin, Dual rowJDQYCK 继电器——1常开1常闭LED 发光二极管LM2576HVT-3.3 Simple Switcher 3A Step Down Voltage RegulatorMAX232 NPN NPN Bipolar TransistorPZ_2 排针——2PZ_3 排针——3RES2Res 电阻Res PZ_8 8位排阻SW-DPST Double-Pole, Single-Throw SwitchWY2JG 稳压二级管ZL2JG 整流二极管
上传时间： 2021-11-17
上传用户：kingwide
CH340C+RT9013+MINI USB接口板 AD设计硬件原理图+PCB文件,ALTIUM设计的2层板设计，包括完整的原理图和PCB文件，主要器件如下：Library Component Count : 12Name Description----------------------------------------------------------------------------------------------------CAP CapacitorCC2640EM CC2630 ModuleCH340 CH340 USB 2 UARTCON11 Connector 11pinsCON12 Connector 12pinsCON3X2 Connector 5*2LED LEDRES ResistorRT9013 RT9013 3.3VSWITCH switch 6*6USB1 USB ConnectorsXDS110-Lte XDS110-Lite Target Interface
上传时间： 2021-11-24
上传用户：canderile
NCP1399 是高性能电流模式控制器，半桥谐 变换器。此控制器实现 600 V 门驱动、 简化布 局和减少外部组件计数 。built - in 和 Brown - Out 输入函数简化了执行在所有应用程序的控制器。 在 PFC 前阶段的应用 NCP1399 需要设有专用的 输出驱动 PFC 前级控制器。此功能专用 skip-mode 技术进一步提高轻负载效率的整个应 用程序。 NCP1399 提供全套的保护功能允许安全 运行在任何应用程序中。这包括：过载保护，过 流保护以防止硬开关周期， brown- out 检测，打 开光电耦合器检测， 死区自动调整， 过电压（OVP） 和 (OTP) 过温保护
上传时间： 2021-12-17
上传用户：qingfengchizhu
TMS320F28035 DSP最小核心板开发板ALTIUM设计原理图，无PCB板图。原理图已在项目中使用，包括CAN通信电路和瓷隔离电路等，可以做为你的设计参考，所用器件型号如下：ADUM1201AT24CXXBAV99 R26010005CAP CapacitorHeader 4 Header, 4-PinHeader 4X2 Header, 4-Pin, Dual rowINDUCTORL2 LM317 R25040043NTC R27040030OPTOISORES R20190049RES1 SN65HVD230/SO8SW-SPST Single-Pole, Single-Throw SwitchTL431TMS320F28035-80XTAL Crystal Oscillator
标签： tms320f28035 dsp
上传时间： 2021-12-22
上传用户：trh505
1. Scope ......................................................................................................................................................................... 12. DDR4 SDRAM Package Pinout and Addressing ....................................................................................................... 22.1 DDR4 SDRAM Row for X4,X8 and X16 ................................................................................................................22.2 DDR4 SDRAM Ball Pitch........................................................................................................................................22.3 DDR4 SDRAM Columns for X4,X8 and X16 ..........................................................................................................22.4 DDR4 SDRAM X4/8 Ballout using MO-207......................................................................................................... 22.5 DDR4 SDRAM X16 Ballout using MO-207.............................................................................................................32.6 Pinout Description ..................................................................................................................................................52.7 DDR4 SDRAM Addressing.....................................................................................................................................73. Functional Description ...............................................................................................................................................83.1 Simplified State Diagram ....................................................................................................................................83.2 Basic Functionality..................................................................................................................................................93.3 RESET and Initialization Procedure .....................................................................................................................103.3.1 Power-up Initialization Sequence .............................................................................................................103.3.2 Reset Initialization with Stable Power ......................................................................................................113.4 Register Definition ................................................................................................................................................123.4.1 Programming the mode registers .............................................................................................................123.5 Mode Register ......................................................................................................................................................134. DDR4 SDRAM Command Description and Operation ............................................................................................. 244.1 Command Truth Table ..........................................................................................................................................244.2 CKE Truth Table ...................................................................................................................................................254.3 Burst Length, Type and Order ..............................................................................................................................264.3.1 BL8 Burst order with CRC Enabled .........................................................................................................264.4 DLL-off Mode & DLL on/off Switching procedure ................................................................................................274.4.1 DLL on/off switching procedure ...............................................................................................................274.4.2 DLL “on” to DLL “off” Procedure ..............................................................................................................274.4.3 DLL “off” to DLL “on” Procedure ..............................................................................................................284.5 DLL-off Mode........................................................................................................................................................294.6 Input Clock Frequency Change ............................................................................................................................304.7 Write Leveling.......................................................................................................................................................314.7.1 DRAM setting for write leveling & DRAM termination function in that mode ............................................324.7.2 Procedure Description .............................................................................................................................334.7.3 Write Leveling Mode Exit .........................................................................................................................34
标签： DDR4
上传时间： 2022-01-09
上传用户：
STM32L053C8T6数据手册Features • Ultra-low-power platform – 1.65 V to 3.6 V power supply – -40 to 125 °C temperature range – 0.27 µA Standby mode (2 wakeup pins) – 0.4 µA Stop mode (16 wakeup lines) – 0.8 µA Stop mode + RTC + 8 KB RAM retention – 139 µA/MHz Run mode at 32 MHz – 3.5 µs wakeup time (from RAM) – 5 µs wakeup time (from Flash) • Core: ARM® 32-bit Cortex®-M0+ with MPU – From 32 kHz up to 32 MHz max. – 0.95 DMIPS/MHz • Reset and supply management – Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds – Ultralow power POR/PDR – Programmable voltage detector (PVD) • Clock sources – 1 to 25 MHz crystal oscillator – 32 kHz oscillator for RTC with calibration – High speed internal 16 MHz factory-trimmed RC (+/- 1%) – Internal low-power 37 kHz RC – Internal multispeed low-power 65 kHz to 4.2 MHz RC – PLL for CPU clock • Pre-programmed bootloader – USART, SPI supported • Development support – Serial wire debug supported • Up to 51 fast I/Os (45 I/Os 5V tolerant) • Memories – Up to 64 KB Flash with ECC – 8KB RAM – 2 KB of data EEPROM with ECC – 20-byte backup register
标签： stm32l053c8t6
上传时间： 2022-02-06
上传用户：
The PW5300 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.2Ω powerMOSFET make this regulator highly power efficient. The internal compensation network alsominimizes as much as 6 external component counts. The non-inverting input of error amplifierconnects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrushcurrent. The PW5300 is available in the SOT23-6L package and provides space-saving PCB for theapplication fields
标签： pw5300
上传时间： 2022-02-11
上传用户：jiabin
The PW5200A/ PW5200C is high efficiency synchronous, PWM step-up DC/DC converters optimizedto provide a high efficient solution to medium power systems. The devices work with a 1.4MHz fixedfrequency switching. These features minimize overall solution footprint by allowing the use of tiny,low profile inductors and ceramic capacitors. Automatic PWM/PFM mode switching at light loadsaves power and improves efficiency
标签： pw5200
上传时间： 2022-02-11
上传用户：
The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithiumion batteries.Its ThinSOT package and low external component count make the PW4055 ideallysuited for portable applications.Furthermore, the PW4055 is specifically designed to work within USBpower specifications.The PW4055 No external sense resistor is needed, and no blocking diode is required due to theinternal MOSFET architecture.Thermal feedback regulates the charge current to limit the dietemperature during high power operation or high ambient temperature. The charge voltage is fixedat 4.2V, and the charge current can be programmed externally with a single resistor. The PW4055automatically terminates the charge cycle when the charge current drops to 1/10th the programmedvalue after the final float voltage is reached. When the input supply (wall adapter or USB supply) isremoved, the PW4055 automatically enters a low current state, dropping the battery drain currentto less than 2µA. The PW4055 can be put into shutdown mode, reducing the supply current to 25µA.The BAT pin has a 7KV ESD(HBM) capability. Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination and the presenceof an input voltage
标签： pw4055
上传时间： 2022-02-11
上传用户：jason_vip1
