HT1623 -- RAM Mapping 48x8 LCD Controller forI/O MCU General Description HT1623 is a peripheral device speciallydesigned for I/O type MCU used to expand the display capability.The max. display segment of the device are 384 patterns (48x8). Italso supports serial interface, buzzer sound, watchdog timer ortime base timer functions. The HT1623 is a memory mapping andmulti-function LCD controller. The software configuration featureof the HT1623 make it suitable for multiple LCD applicationsincluding LCD modules and display subsystems. Only three lines arerequired for the interface between the host controller and theHT1623. The HT162X series have many kinds of products that matchvarious applications.  Features Operating voltage: 2.7V~5.2V Built-in RC oscillator External 32.768kHz crystal or 32kHz frequency source input 1/4 bias, 1/8 duty, frame frequency is 64Hz Max. 48x8 patterns, 8 commons, 48 segments Built-in internal resistor type bias generator 3-wire serial interface 8 kinds of time base/WDT selection Time base or WDT overflow output Built-in LCD display RAM R/W address auto increment Two selection buzzer frequencies (2kHz/4kHz) Power down command reduces power consumption Software configuration feature Data mode and Command mode instructions Three data accessing modes VLCD pin to adjust LCD operating voltage Cascade application 100-pin QFP package

HT1625 -- RAM Mapping 64x8 LCD Controller forI/O MCU

General Description

HT1625 is a peripheral device speciallydesigned for I/O type MCU used to expand the display capability.The max. display segment of the device are 512 patterns (64x8). Italso supports serial interface, buzzer sound, watchdog timer ortime base timer functions. The HT1625 is a memory mapping andmulti-function LCD controller. The software configuration featureof the HT1625 make it suitable for multiple LCD applicationsincluding LCD modules and display subsystems. Only three lines arerequired for the interface between the host controller and theHT1625. The HT162X series have many kinds of products that matchvarious applications. 

Features Operating voltage: 2.7V~5.2V Built-in RC oscillator External 32.768kHz crystal or 32kHz frequency source input 1/4 bias, 1/8 duty, frame frequency is 64Hz Max. 64x8 patterns, 8 commons, 64 segments Built-in internal resistor type bias generator 3-wire serial interface 8 kinds of time base/WDT selection Time base or WDT overflow output Built-in LCD display RAM R/W address auto increment Two selectable buzzer frequencies (2kHz/4kHz) Power down command reduces power consumption Software configuration feature Data mode and Command mode instructions Three data accessing modes VLCD pin to adjust LCD operating voltage Cascade application 100-pin QFP package

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