FD1000A
3/4COM LCD Driver
3 COM, 4 COM LCD Display Driver
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
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Programmable Duty Ratio
1/3 Duty : Up to 156 Segment Outputs
1/4 Duty : Up to 204 Segment Outputs
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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
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