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HT16C21 RAM Mapping 20*4 / 16*8 LCD Driver Controller
Feature
●● Operating
voltage: 2.
4 ~ 5.
5V ●● Internal 32kHz RC oscillator ●● Bias: 1/3 or 1/4; Duty: 1/4 or 1/8 ●● Internal LCD bias generation with
voltagefollower buffers ●● I2C interface ●● Two selectable LCD frame frequencies: 80Hz or 160Hz ●● Up to 16 x 8 bits RAM for display data storage ●● Display patterns: ––20 x 4 patterns: 20 segments and 4 commons ––16 x 8 patterns: 16 segments and 8 commons ●● Versatile blinking modes ●● R/W address auto increment ●● Internal 16-step
voltage adjustment to adjust LCD operating
voltage ●● Low power consumption ●● Provides VLCD pin to adjust LCD operating
voltage ●● Manufactur...