LAPIS ML9478C
The ML9478C is an LCD driver LSI, consists of a 80-bit shift register, a 320-bit data latch, 80 sets of LCD drivers, and a common signal generation circuit. It can directly drive an LCD up to 80 segments for static display, 160 segments for 1/2-duty display, 240 segments for 1/3-duty display, and 320 segments for 1/4-duty display. The three-wire serial interface and I2C interface are selectable.| Part No. | ML9478C |
|---|---|
| Datasheet | ML9478C Download |
| Manufacturer |  LAPIS |
| Description | Static 1/2 Duty 1/3 Duty 1/4 Duty 80 Outputs LCD Driver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
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● 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 : 80 segments 1/2-duty display : 160 segments 1/3-duty display : 240 segments 1/4-duty display : 320 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 (ML9478CDVWA)
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● 1/31 FEDL9478C-01 ML9478C BLOCK DIAGRAM SEG1 VLCD SEG80 BIAS Bias Resi. 80-Dot Segment Driver 80-Ch Data Selector Duty0 Duty1 80 80-Bit Latch4 80 80-Bit Latch3 80 80-Bit Latch2 80 80-Bit Latch1 M/S LATCH SELECTOR 80 I2C LOAD DATA（SDA） CLOCK（S...
