PCA9901 - One Wire Single LED Driver
The PCA9901 is a 20 mA current source for a single LED that allows stand-alone blinking of a predefined pattern to off-load the microcontroller and save battery power.
Programming of the device is done through a training sequence: the host controller sends the LED lighting sequence and the PCA9901 m
PCA9901 Features
* 1 wire interface to control the device
* Stand-alone blinking capability while training the sequence to blink
* Sequence includes up to 3 blinking elements
* 12-bit (4096 steps) LED ON and OFF timings for each blinking element: ON timing is captured between 1 ms a
