VK1621S-1
32×4 LCD DRIVER
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 • Time base or WDT overflow output （/IRQ pin）
• 3 or 4 wire serial interface • Software configuration LCD parameters • Data mode and command mode instructions • Read/Write address auto increment • Three data accessing modes • VLCD pin for adjusting LCD operating voltage（
VK1621S-1 Datasheet
