Data Sheet
Ref. IS.MDUINO.XXX 
Using the boards of Industrial Shields, there is a library that simplifies the uSD implementation 
called SD. It is the same as the Arduino library, with the only modification of using the pin 53 to 
select the Chip Select of the uSD chip. 
  I/O technical details: 
Digital Output Waveform: 
Digital Out-put Turn-off: 
PWM Waveform: 










