The uPD4711 is a silicon gate CMOS IC which combines 2 sets of line drivers and receivers comforming to 
the RS-232C standard. A single +5V power source operation is realized by built-in DC-DC converter.
     Moreover, the attractive addition functions are provided such as driver output control function and receiver
input threshold hysteresis select function etc.
    By these feature, the uPD4711 is the best choice for DTE (Data Terminal Equipment). DCE (Data Circuit
Terminating Equipment) and OA equipment.

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