Overview
The LC75814V is a 1/4 duty general-purpose LCD driver that can be used for frequency display in electronic tuners under the control of a microcontroller. The LC75814V can drive an LCD with up to 64 segments directly. The LC75814V can also control up to 4 general-purpose output ports. Since the LC75814V uses separate power supply systems for the LCD drive block and the logic block, the LCD driver block power-supply voltage can be set to any voltage in the range 2.7 to 6.0 volts, regardless of the logic block power supply voltage.

FEATUREs
● Support for 1/4 duty 1/2 bias or 1/4
   duty 1/3 bias drive of up to 64 segments
   under serial data control.
● Serial data input supports CCB* format communication
   with the system controller.
● Serial data control of the power-saving mode
   based backup function and all
   the segments forced off function
● Serial data control of switching
   between the segment output port and the
   general-purpose output port functions
● High generality, since display data is displayed
   directly without decoder
   intervention.
● Independent VLCD for the LCD driver block (VLCD can be set to any
   voltage in the range 2.7 to 6.0 volts,
   regardless of the logic block power
   supply voltage.)
● The INH pin can force the display to the off state.
● RC oscillator circuit