LCD Controller & Driver (I²C) - RAM Mapping 44×4 LCD Controller Driver

The HT16C22A/HT16C22AG devices are a memory mapping and multi-function LCD controller driver. The maximum display segments of the devices are 176 patterns (44 segments and 4 commons). The software configuration feature of the HT16C22A/HT16C22AG devices make it suitable for multiple LCD applications including LCD modules and display subsystems. The HT16C22A/HT16C22AG devices communicate with most microprocessors/microcontrollers via a two-line bidirectional I²C bus.

Features:

• operating voltage: 2.4V~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
• up to 44×4 bits RAM for display data storage
• max. 44×4 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 the VLCD pin to adjust LCD operating voltage
• manufactured in silicon gate CMOS process

Specification:

• VDD: 2.4V~5.5V
• segment x common: 44×4
• LCD voltage: ≤VDD
• bias: 1/2, 1/3
• build-in OSC
• interface: I²C
• case: 48LQFP