Controller IC Chip - MAX3243CAI MAXIM3243 chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0676) The  MAX3221/MAX3223/MAX3243  achieve  1μA  supplycurrent with Maxim’s revolutionary AutoShutdown™ fea-ture.  When  the  MAX3221/MAX3223/MAX3243  do  notsense  a  valid  signal  level  on  their  receiver  inputs,  theon-board  power  supply  and  drivers  shut  down.  Thisoccurs  if  the  RS-232  cable  is  disconnected  or  if  thetransmitters  of  the  connected  peripheral  are  turned  off.The system turns on again when a valid level is appliedto  any  RS-232  receiver  input.  As  a  result,  the  systemsaves  power  without  changes  to  the  existing  BIOS  oroperating system.The MAX3221/MAX3223/MAX3243 transceivers are 3V-powered  EIA/TIA-232  and  V.28/V.24  communicationsinterfaces  intended  for  notebook  computer  applica-tions.  A  proprietary,  high-efficiency,  dual  charge-pumppower supply and a low-dropout transmitter combine todeliver true RS-232 perform

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