General Description
The FD1000A is a 1/3 or 1/4 duty LCD driver for segment type LCD panel. It can be used for frequency display in microprocessor-controlled receiver and in other display application.
The FD1000A chooses numbers of common and general-purpose output ports by instructions. Therefor, It drives 156-segment at 1/3 duty in use of 3 commons or 204-segment at 1/4 duty in use of 4 commons. Also it provides 12 general-purpose output ports. 

FEATUREs
● Programmable Duty Ratio
   1/3 Duty : Up to 156 Segment Outputs
   1/4 Duty : Up to 204 Segment Outputs
● Programmable LCD Bias Ratio : 1/2 Bias or 1/3 Bias
● Programmable General-purpose Output Port Function (Only 1/4 Duty Mode)
● Internal LCD Driving Voltage Generator Circuit
● Normal & Diminish LCD Dividing resistors Selection (Only 1/4 Duty Mode)
● Power Saving Mode and all Segment OFF Function
● RC Oscillation Circuit
● Serial Interface ( SI, SCK, CE and INH/ ) for 3V or 5V
● Power supply Voltage : 2.7V ~ 5.5V
● Package Type
   64-LQFP-1414, 64-LQFP-1010