HT16C21 SOP20

The HT16C21 device is a memory mapping and multi-function LCD controller/driver. The display segments of the device are 80 patterns (20 segments and 4 commons) or 128 patterns (16 segments and 8 commons). The software configuration feature of the HT16C21 device makes it suitable for multiple LCD applications including LCD modules and display subsystems. The HT16C21 device communicates with most microprocessors/microcontrollers via a two-line bidirectional I2C interface.

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 voltage follower 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
Manufactured in silicon gate CMOS process
Package Type: 20/24/28 SOP, 16 NSOP and Chip