ML9484

FEDL9484-01 Issue Date: Dec. 25, 2013 ML9484 Static, 1/2 Duty, 1/3 Duty, 1/4 Duty 50 Outputs LCD Driver GENERAL DESCRIPTION The ML9484 is an LCD driver LSI, consists of a 50-bit shift register, a 200-bit data latch, 50 sets of LCD drivers, and a common signal generation circuit. It can directly drive an LCD up to 50 segments for static display, 100 segments for 1/2-duty display, 150 segments for 1/3-duty display, and 200 segments for 1/4-duty display. FEATURES     Logic power supply voltage : 2.7 to 5.5 V LCD drive power supply voltage : 4.5 to 5.5 V Maximum number of segments Static display : 50 segments 1/2-duty display : 100 segments 1/3-duty display : 150 segments 1/4-duty display : 200 segments Serially interfaces with the CPU using the three signal lines of DATA, CLOCK, and LOAD Selectable internal CR oscillator circuit or external clock input Built-in bias circuit Built-in common output intermediate-value voltage generation circuit Command-selectable A-waveform or B-waveform Package : 64-pin plastic TQFP       1/29 http://www.Datasheet4U.com FEDL9484-01 ML9484 BLOCK DIAGRAM SEG1 VLCD SEG50 Bias Resi. 50-Dot Segment Driver 50-Ch Data Selector 50 50-Bit Latch4 50 50-Bit Latch3 50 50-Bit Latch2 50 50-Bit Latch1 LOAD LATCH SELECTOR 50 DATA CLOCK Command Decoder 50-bit Shift Register OSC I/E COM1 OSC OSC TIMING GENERATOR COMMON Driver COM2 COM3 COM4 RESETB TEST VDD GND 2/29 FEDL9484-01 ML9484 PIN CONFIGURATION (TOP VIEW) 62 LOAD 61 RESE...