HT16C22A/HT16C22AG
RAM Mapping 44×4 LCD Controller Driver
General Information
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.
Feature Details
| Attribute | Value |
|---|---|
| Operating voltage | 2.4V~5.5V |
| Internal 32kHz RC oscillator | Available |
| Bias | 1/2 or 1/3; Duty: 1/4 |
| Internal LCD bias generation with voltage-follower buffers | Available |
| I²C bus interface | Available |
| Two selectable LCD frame frequencies | 80Hz or 160Hz |
| Up to 44×4 bits RAM for display data storage | Available |
| Max. 44×4 patterns | 44 segments and 4 commons |
| Versatile blinking modes | Available |
| R/W address auto increment | Available |
| Internal 16-step voltage adjustment to adjust LCD operating voltage | Available |
| Low power consumption | Available |
| Provides the VLCD pin to adjust LCD operating voltage | Available |
| Manufactured in silicon gate CMOS process | Available |
| Package Types | 48/52-pin LQFP and COG |
Resources
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