特色

1. Operating voltage: 2.4V - 5.2V
2. Built-in 256kHz RC oscillator
3. External 32.768kHz crystal or 256kHz frequency source input
4. Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4 duty LCD applications
5. Internal time base frequency sources
6. Two selectable buzzer frequencies (2kHz/4kHz)
7. Power down command reduces power consumption
8. Built-in time base generator and WDT
9. Time base or WDT overflow output
10. 8 kinds of time base/WDT clock sources
11. 32×4 LCD driver - Built-in 32×4 bit display RAM
12. 3-wire serial interface
13. Internal LCD driving frequency source
14. Software configuration feature
15. Data mode and command mode instructions
16. R/W address auto increment
17. Three data accessing modes
18. VLCD pin for adjusting LCD operating voltage

資源

1. IC: Holtek HT1621, RAM Mapping 32 x 4 LCD Controller (包含規格書、封裝尺寸等)
2. 應用筆記: AN0468T, HT162x應用須知