VK1621S-1 Overview
VK1621S-1 32×4 LCD DRIVER VK1621 is a RAM Mapping 32x4 LCD Driver，It can support LCD screens with a maximum of 128 pattern(32SEGx4), it is also supports LCD screens of 2 or 3.Only 3 or 4 lines are required to munication interface with the VK1621,it is used to.
VK1621S-1 Key Features
- Operating voltage:2.4-5.2V
- Built-in 256kHz RC oscillator（default）
- External 32.768kHz crystal（OSCO,OSCI）
- External 256kHz requency source（OSCI）
- Selection of 1/2 or 1/3 bias
- Selection of 1/2 or 1/3 or 1/4 duty
- Built-in 32×4 bit display RAM
- Selection of buzzer frequencies 2kHz、4kHz
- STANDBY mode（by Cmd LCD OFF,SYS DIS）
- 8 kinds of time base/WDT clock sources