LCD DRVR 3.3V/5V 64-Pin SQFP

The LC75827W is 1/3, 1/4 duty generalpurpose LCD drivers that can be used for frequency display in electronic tuners under the control of a micr Deg Controller. In addition to being able to directly drive up to 200 LCD segments, the LC75827W can also control up to 12 general-purpose output ports. The LC75827E/W uses separate power supplies for the LCD driver bl Deg Ck and the logic bl Deg Ck. This allows the LCD driver bl Deg Ck supply voltage to be set to any level in the 2.7 to 6.0 V range independently of the logic bl Deg Ck supply voltage.

• Either 1/3 or 1/4 duty can be selected with the serial control data.
• Either 1/2 or 1/3 bias can be selected with the serial control data.
• Up to 153 segments can be driven in 1/3 duty drive and up to 200 segments can be driven in 1/4 duty drive.
• 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 general-purpose output port functions
• The frame frequency of the common and segment output waveforms can be controlled with the serial control data.
• Either RC oscillation or external clock mode can be selected with the serial control data.
• 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.