Overview: 

The AX1622 is a 256 dot matrix memory mapped multifunction LCD driver circuit. The S/W structure of the AX1622 makes it suitable for dot matrix LCD display, including LCD module and display subsystem, and the AX1622 has a power off function.

Features: 

 Operating Voltage: 2.7V~5.2V 

 Built-in 32KHz RC Oscillator 

 1/4 Bias, 1/8 Duty Cycle, 64Hz Display Frequency 

 Built-in Resistor Bias Voltage Generator Circuit

 Two buzzer frequencies available (2kHz/4kHz) 

 Power down command to reduce power loss 

 Internal Time base and WDT watchdog circuitry 

 Overflow output for Time base/WDT 

 8 Time base/WDT clock sources 

 LCD driver up to 32×8 

 Power down command reduces power consumption 

 3-terminal serial interface 

 Specify control operations 

 Data Mode and Command Mode instructions 

 R/W address auto-accumulation 

 Three data access modes 

 Adjust LCD voltage with VLCD terminal 

 Package: 64 QFP/LQFP