标签: pca9550515253

GPIO扩展LED闪烁NXP2/4/8/16-bitI2C/SMBusLEDblinkersPCA9550/51/52/53LEDblinkingwithGPIOexpansionTheseI2C/SMBus-compatibleGPIOexpanders,optimizedforblinkinginLED-statusapplications,supporttwouser-programmableblinkrates,withoutoverloadingtheI2C-busortyinguptheI2C-busmaster.KeyfeaturesApplications4CompatiblewithI2C-busandSMBus4LEDstatus4Twouser-programmableblinkratesanddutycycles……