ML9471 Datasheet | LAPIS

DESCRIPTION The ML9471 is a LCD driver for dynamic display providing 3-duty-switchable pins (1/3, 1/4, 1/5 duty). It can directly drive LCDs of up to 400, 320 and 240 segments when 1/5, 1/4 and 1/3 duty are selected respectively. FEATURES - Operatin g range Supply voltage : 3.0 to 5.5 V Operating temperature range : - 40 to + 105C - Segment output : 80 pins 1/5 duty : Up to 400 segments can be displayed. 1/4 duty : Up to 320 segments can be displayed. 1/3 duty : Up to 240 segments can be displayed. - Serial transfer clock frequency : 4 MHz - Serical interface with CPU :Through three input pins (DATA_IN, LOAD, and CLOCK) - Built-in oscillator circuit for MON signals - One-to-one correspondence between input data and output data When input data is at “H” level : Display goes on. When input data is at “L” level : Display goes off. - The entire display can be turned off. (BLANK pin) - P ackage options 100-pin plastic TQFP (TQFP100-P-1414-0.50-K) (Product name: ML9471TB) 1/20 http://.. FEDL9471-01 LAPIS Semiconductor BLOCK DIAGRAM SEG1 SEG80 BLANK 80-Dot Segment Driver 80-Ch Data Selector 80 80 80 80 80 80-Bit Latch 5 80-Bit Latch 4 80-Bit Latch 3 80-Bit Latch 2 80-Bit Latch 1 LOAD LATCH SELECTOR DATA_IN CLOCK 88-Stage Shift Register OSC_OUT OSC_OUT OSC_IN TIMING GENERATOR VLC1 VLC2 VLC3 DSEL1 DSEL2 MON Driver 1 2 3 4 5 VDD...