ML9479E

FEDL9479E-02 Issue Date: Apr. 3, 2013 ML9479E Static, 1/2 Duty, 1/3 Duty, 1/4 Duty 160 Outputs LCD Driver GENERAL DESCRIPTION The ML9479E is an LCD driver LSI, consists of a 160-bit shift register, a 640-bit data latch, 160 sets of LCD drivers, and a common signal generation circuit. It can directly drive an LCD up to 160 segments for static display, 320 segments for 1/2-duty display, 480 segments for 1/3-duty display, and 640 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 : 160 segments 1/2-duty display : 320 segments 1/3-duty display : 480 segments 1/4-duty display : 640 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 eight 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 (ML9479EDVWA)        1/32 http://www.Datasheet4U.com FEDL9479E-02 ML9479E BLOCK DIAGRAM SEG1 VLCD SEG160 BIAS Bias Resi. 160-Dot Segment Driver 160-Ch Data Selector Duty0 Duty1 160 160-Bit Latch4 160 160-Bit Latch3 160 160-Bit Latch2 160 160-...