ML9475 Datasheet | LAPIS

DESCRIPTION The ML9475 is an LCD driver for dynamic display. It has a function to switch between 1/3 and 1/4 duty. When 1/4 duty is selected, an LCD of up to 160 segments can be driven directly; when 1/3 duty is selected, an LCD of up to 120 segments can be driven directly. FEATURES - Logic power supply voltage : 2.7 to 3.6 V, 4.5 to 5.5 V - Driver power supply voltage : 3.5 to 5.5 V - Operatin g temperature : - 40 to +105°C - 40 segment outputs 1/4 duty : Up to 160 segments can be displayed. 1/3 duty : Up to 120 segments can be displayed. - Serially interfaces with the CPU using the three signal lines of LOAD, DATA_IN, and CLOCK - Built-in RC oscillator circuit for LCD AC drive (the CLKSEL pin allows selecting an external clock input) - Built-in voltage-dividing resistor for bias voltage generation - Package : 56-pin plastic QFP (QFP56-P-910-0.65-2K) 1/20 http://.. FEDL9475-01 BLOCK DIAGRAM SEG1 SEG40 DVDD 40-Dot Segment Driver Bias Res. 40-Ch Data Selector TEST 40-Bit Latch4 40-Bit Latch3 40-Bit Latch2 40-Bit Latch1 LOAD LATCH SELECTOR DATA_IN CLOCK 46(40 + 6)-bit Shift Register TIMING GENERATOR 1 CLKSEL 3/4SEL MON Driver 2 3 4 RESET LVDD VSS 2/...