LED Flash Integrated Circuits - HK928

 10 LED flash IC .
 Trigger mode by level hold type .
 Can be expand to 40 LED or
   more for LED driving output .
 All LED sequence shift flash
   when trigger key no need to
   activated .  
 4 different LED flash mode output
   from 4 alone trigger pins touched .
 4 different LED flash mode :
    (1) 10 LED flash at same time
    (2) 10 LED continuance flash 
    (3) 10 LED light up 
    (4) 10 LED sequence forward
         and backward flash .