HT1621 - ART CHIP

HT1621 RAM Mapping 32 x 4 LCD Controller

The HT1621 is a 128 pattern (32x4), memory mapping, and multi-function LCD driver. The S/W c.

Features

Operating voltage: 2.4V ~ 5.2V Built-in 256kHz RC oscillator External 32.768kHz crystal or 256 kHz frequency source input Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4 duty LCD applications Internal time base frequency sources Two selectable buzzer frequencies (2kHz/4kHz) Power down command reduces power consumption Built-in time base generator and a WDT Time base or WDT overflow output 8 kinds of time base/WDT clock sources 32x4 LCD driver Built-in 32x4 bit display RAM 3-wire serial interface Internal LCD driving frequency source Software configuration feature Data mode an.