General Description
The VK2C23 device is a memory mapping and multi-function LCD controller driver. The Display segments of the device are 224 patterns (56 segments and 4commons) or 416 patterns (52 segments and 8 commons). The software configuration feature of the VK2C23 device makes it suitable for multiple LCD applications including LCD modules and display subsystems. The VK2C23 device communicates with most microprocessors / microcontrollers via a two-line bidirectional I2C-bus.

Features
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-bus interface
Two Selectable LCD frame frequencies: 80Hz or 160Hz
Up to 52 x 8 bits RAM for display data storage
Display patterns:
– 56 x 4 patterns: 56 segments and 4 commons
– 52 x 8 patterns: 52 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: 48LQFP, 64LQFP, Chip and Goldbump chip.

Electronic meter
Water meter
Gas meter
Heat energy meter

Household appliance
Games
Telephone
Consumer electronics