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HT1621

HT1621_CN.pdf

HOLTEK HT1621 LCD Driver


Characteristics


* Operating voltage 2.4 5.2V


* Embedded 256KHz RC Oscillator


* External 32KHz wafer or 256KHz frequency source inputs available


* Selectable 1/2 or 1/3 bias voltage and 1/2 1/3 or 1/4 duty cycle


* On-chip time base frequency source


* Buzzer selectable for two frequencies


* Power save command can be used to reduce power consumption


* Embedded time base generator and watchdog timer WDT


* Time base or watchdog timer overflow outputs


* Eight time base/watchdog timer clock sources


* One 32 4 LCD driver


* One embedded 32 4-bit display RAM memory


* A four-wire serial interface


* On-chip LCD driver frequency source


* Software configuration features


* Data mode and command mode instructions


* Three data access modes


* VLCD pin is provided to adjust the LCD operating voltage


OVERVIEW

HT1621_CN.pdf-Specification Download PDF-LCD Manufacturer