NJU6541A

Preliminary Static 1/2 1/3 1/4 Duty LCD Driver www.datasheet4u.com ! GENERAL NJU6541A DESCRIPTION ! PACKAGE OUTLINE The NJU6541A is a Static or 1/2,1/3,1/4 duty segment type LCD driver. It incorporates 4 common driver circuits and 120 segment driver circuits. The NJU6541A can drive maximum 480 segments in 1/4 duty ratio, and can 2 use I C F/S mode. In addition, the NJU6541A's useful functions meet a wide range of applications. ! FEATURES NJU6541A # LCD driving circuit :Max. 120outputs (4 outputs as for general purpose ports) # Programmable Duty Ratio Static :Driving max. 120 segments 1/2 Duty Ratio :Driving max. 240 segments 1/3 Duty Ratio :Driving max. 360 segments 1/4 Duty Ratio :Driving max. 480 segments # General Purpose Port :Driving max 4outputs (SEG1-SEG4:4outputs as for general purpose ports) # Key Scan Function :Max 30Key(5-out x 6-in matrix) # Programmable Bias Ratio :1/2, 1/3 bias ratio (Static:1/1) 2 # I C-bus Interface :F/S mode slave address 0111_000* (*: Read/ Write mode distinction: 0=write, 1=read) # Oscillator :CR oscillation with external resistor and capacitance, or external oscillation signal input Operating Wave Form :A wave form, B wave form Electrical Variable Resistance :8-steps Power ON Initialize Circuit On-Chip Useful Instruction Set :Duty select, Bias select, Wave form select, Oscillation select, Segment or general purpose ports select, Segment or Key scan output select, E.V.R select, Display ON/OFF, Key scan ON/OFF # Operating Voltage :3....