HT16C22/HT16C22G -- RAM Mapping 44*4 LCD Controller Driver

General Description

The HT16C22/HT16C22G device is a memory mapping and multi-function LCD controller driver. The maximum Display segments of the device are 176 patterns (44 segments and 4commons). The software confi guration feature of the HT16C22/HT16C22G makes it suitable for multiple LCD applications including LCD modules and display subsystems. The HT16C22/HT16C22G device communicates with most microprocessors / microcontrollers via a two-line bidirectional I2C-bus.


  • Operating voltage:2.4~5.5V
  • Internal 32kHz RC oscillator
  • Bias: 1/2 or 1/3; Duty: 1/4
  • Internal LCD bias generation with voltage-follower buffers
  • I2C-bus interface
  • Two Selectable LCD frame frequencies: 80Hz or 160Hz
  • 44 x 4 bits RAM for display data storage
  • Max. 44 x 4 patterns, 44 segments and 4 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
  • Manufactured in silicon gate CMOS process
  • Package Type: 48/52LQFP, chip and COG

Technical Document

Other Information