PCA9625是一款i2C总线控制的16位LED驱动器,主要应用于电流为100mA的红/绿/蓝/琥珀(RGBA)LED亮度和闪烁的控制,每个LED由独立的8位分辨率(256级)的固定频率PWM控制器控制输出。PWM控制器的工作频率为97kHz,占空比从0%到99.6%可调整,使LED达到所需的亮度。附加的8位分辨率(256级)PWM控制器组不但有固定的190Hz频率,还可以在24Hz和每10.73秒的固定周期内工作,产生占空比为0%至99.6%范围内的信号,使所有的LED达到同样的亮度或闪烁频率。
上传时间: 2013-10-31
上传用户:blans
PCA9624是一款带i2C总线的8位LED的电压开关优化的LED驱动器,它主要应用于电流为100mA 的红/绿/蓝/琥珀(RGBA)的LED的亮度和闪烁的控制。每个LED输出均有独立的8位分辨率(256个梯度)且输出频率固定为97KHz的PWM控制器它可以在0%到99.6%的范围内对LED的亮度进行调整,使发光二极管被设置为一个特定的亮度值。额外的8位分辨率(256个梯度)PWM控制器组既有固定的190Hz的频率又可以在24Hz和每10.73秒的固定周期内对LED灯亮度从0%至99.6%的范围内调整,使它们保持同样的亮度或闪烁速度。
上传时间: 2014-12-27
上传用户:zhangliming420
i2C的模拟驱动资料
上传时间: 2013-11-21
上传用户:lht618
介绍了作者所设计的基于i2C 总线的测试系统的结构及i2C 总线通信协议的特点,给出了i2C 总线在avr 单片机Atmega128 和三个Atmega168 通信时的具体主发和从收程序的流程图及部分C 语言程序,实现了Atmega128 单片机与三个Atmega168 单片机之间的可靠通信。最后,总结了编写i2C 通信程序时的注意事项。
上传时间: 2013-10-31
上传用户:9牛10
PCA9515 是一款采用BiCMOS 工艺的总线中继器,通过它可以扩展i2C 和SMBus 系统。PCA9515 在保持总线操作模式和特性的情况下,通过缓存数据线(SDA)和时钟线(SCL)的数据实现i2C 总线扩展,总线容性负载能力最大为400pF。
上传时间: 2013-11-10
上传用户:asdgfsdfht
The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for i2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of i2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
上传时间: 2013-10-10
上传用户:inwins
The PCA9516 is a BiCMOS integrated circuit intended forapplication in i2C and SMBus systems.While retaining all the operating modes and features of the i2Csystem, it permits extension of the i2C-bus by buffering both the data(SDA) and the clock (SCL) lines, thus enabling five buses of 400 pF.The i2C-bus capacitance limit of 400 pF restricts the number ofdevices and bus length. Using the PCA9516 enables the systemdesigner to divide the bus into five segments off of a hub where anysegment to segment transition sees only one repeater delay.
上传时间: 2013-11-21
上传用户:q123321
The PCA9535 and PCA9535C are 24-pin CMOS devices that provide 16 bits of GeneralPurpose parallel Input/Output (GPIO) expansion for i2C-bus/SMBus applications and wasdeveloped to enhance the NXP Semiconductors family of i2C-bus I/O expanders. Theimprovements include higher drive capability, 5 V I/O tolerance, lower supply current,individual I/O configuration, and smaller packaging. I/O expanders provide a simplesolution when additional I/O is needed for ACPI power switches, sensors, push buttons,LEDs, fans, etc.
上传时间: 2013-10-21
上传用户:爱死爱死
PCA9516 是一款基于BICMOS 工艺的i2C/SMBus 总线中继器。PCA9516 保持i2C 总线系统所有的模式与特性的同时,允许扩展i2C/时钟总线和连接5 条最大容限为400pF 电容的总线。当i2C 总线上有400pF 的电容时,总线长度和器件的数量都会被限制。系统设计者把总线分成五部分,各部分之间的传输只有一个复用器的延时。
上传时间: 2013-11-13
上传用户:75119158
The PCA9536 is an 8-pin CMOS device that provides 4 bits of General Purpose parallelInput/Output (GPIO) expansion for i2C-bus/SMBus applications and was developed toenhance the NXP Semiconductors family of i2C-bus I/O expanders. I/O expanders providea simple solution when additional I/O is needed for ACPI power switches, sensors,push buttons, LEDs, fans, etc.
上传时间: 2013-10-09
上传用户:731140412