www.DataSheet.co.kr HT16C21 RAM Mapping 20*4 / 16.
Holtek Semiconductor
HT16C21 - LCD Driver Controller
www.DataSheet.co.kr HT16C21 RAM Mapping 20*4 / 16*8 LCD Driver Controller Feature ●● Operating voltage: 2.4 ~ 5.5V ●● Internal 32kHz RC oscillator ●●.