PCA9625是一款i2c總線控制的16位LED驅動器,主要應用于電流為100mA的紅/綠/藍/琥珀(RGBA)LED亮度和閃爍的控制,每個LED由獨立的8位分辨率(256級)的固定頻率PWM控制器控制輸出。PWM控制器的工作頻率為97kHz,占空比從0%到99.6%可調整,使LED達到所需的亮度。附加的8位分辨率(256級)PWM控制器組不但有固定的190Hz頻率,還可以在24Hz和每10.73秒的固定周期內工作,產生占空比為0%至99.6%范圍內的信號,使所有的LED達到同樣的亮度或閃爍頻率。
上傳時間: 2013-10-31
上傳用戶:blans
PCA9624是一款帶i2c總線的8位LED的電壓開關優化的LED驅動器,它主要應用于電流為100mA 的紅/綠/藍/琥珀(RGBA)的LED的亮度和閃爍的控制。每個LED輸出均有獨立的8位分辨率(256個梯度)且輸出頻率固定為97KHz的PWM控制器它可以在0%到99.6%的范圍內對LED的亮度進行調整,使發光二極管被設置為一個特定的亮度值。額外的8位分辨率(256個梯度)PWM控制器組既有固定的190Hz的頻率又可以在24Hz和每10.73秒的固定周期內對LED燈亮度從0%至99.6%的范圍內調整,使它們保持同樣的亮度或閃爍速度。
上傳時間: 2014-12-27
上傳用戶:zhangliming420
i2c的模擬驅動資料
上傳時間: 2013-11-21
上傳用戶:lht618
介紹了作者所設計的基于i2c 總線的測試系統的結構及i2c 總線通信協議的特點,給出了i2c 總線在avr 單片機Atmega128 和三個Atmega168 通信時的具體主發和從收程序的流程圖及部分C 語言程序,實現了Atmega128 單片機與三個Atmega168 單片機之間的可靠通信。最后,總結了編寫i2c 通信程序時的注意事項。
上傳時間: 2013-10-31
上傳用戶:9牛10
PCA9515 是一款采用BiCMOS 工藝的總線中繼器,通過它可以擴展i2c 和SMBus 系統。PCA9515 在保持總線操作模式和特性的情況下,通過緩存數據線(SDA)和時鐘線(SCL)的數據實現i2c 總線擴展,總線容性負載能力最大為400pF。
上傳時間: 2013-11-10
上傳用戶: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.
上傳時間: 2013-10-10
上傳用戶: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.
上傳時間: 2013-11-21
上傳用戶: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.
上傳時間: 2013-10-21
上傳用戶:愛死愛死
PCA9516 是一款基于BICMOS 工藝的i2c/SMBus 總線中繼器。PCA9516 保持i2c 總線系統所有的模式與特性的同時,允許擴展i2c/時鐘總線和連接5 條最大容限為400pF 電容的總線。當i2c 總線上有400pF 的電容時,總線長度和器件的數量都會被限制。系統設計者把總線分成五部分,各部分之間的傳輸只有一個復用器的延時。
上傳時間: 2013-11-13
上傳用戶: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.
上傳時間: 2013-10-09
上傳用戶:731140412