LCD Controller / Driver HT16C22 Characteristics Operating voltage : 2.4V ~ 5.5V 2 I C-bus interface Two selectable LCD frame frequencies : 80Hz or 160Hz Max. 44 segments 4 commons Low power consumption (IDD : 27A at 3V、ISTB : 1A at 3V) Provides VLCD pin to adjust the LCD operating voltage Internal 16-voltage steps for VLCD adjustment High EFT capability High system ESD capability Requires very few external circuit components LCD Panel MCU Interface with MCU VDD SDA SCL GND HT16C22 HT16C22 SEG Operating Procedure Turn on the power switch -- the pictures will then appear sequentially Application Circuit