ML9480

FEDL9480-01 Issue Date: Oct. 1, 2012 ML9480 Static, 1/2 Duty, 1/3 Duty, 1/4 Duty 40 Outputs LCD Driver GENERAL DESCRIPTION The ML9480 is an LCD driver LSI, consists of a 40-bit shift register, a 160-bit data latch, 40 sets of LCD drivers, and a common signal generation circuit. It can directly drive an LCD up to 40 segments for static display, 80 segments for 1/2-duty display, 120 segments for 1/3-duty display, and 160 segments for 1/4-duty display. The three-wire serial interface and I2C interface are selectable. 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 : 40 segments 1/2-duty display : 80 segments 1/3-duty display : 120 segments 1/4-duty display : 160 segments Interface with microcomputer : Serial interface : DATA, CLOCK, LOAD CLOCK transfer speed up to 1 MHz : SDA, SCL, SDAACK I2C interface SCL transfer speed up to 400 kHz Built-in CR oscillator circuit using the internal resistor or External resistor Cascade connectable (up to sixteen chips) Built-in common signal generation circuit Built-in common output intermediate-value voltage generation circuit Built-in POC (Power On Clear) circuit Gold bump chip (ML9480DVWA)        1/37 http://www.Datasheet4U.com FEDL9480-01 ML9480 BLOCK DIAGRAM SEG1 VLCD SEG40 BIAS Bias Resi. 40-Dot Segment Driver 40-Ch Data Selector Duty0 Duty1 40 40-Bit Latch4 40 40-Bit Latch3 40 40-Bit Latch2 40 40-Bit Latch1 M/S LATCH...