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HT16565 24 Hour System VFD Digital Clock
Features
· VFD display 24 hour clock function · 4.194304MHz crystal oscillation · Zero adjust function · Integrated voltage regulator permits wide 4V to 16V
operating voltage range
· Four level contrast control function · 44-pin QFP package
General Description
The HT16565 provides direct drive to VFD panels to implement a 24 hour clock function. In addition to obtaining its time base from a 4.194304MHz crystal oscillation source and in having a wide operating voltage, the device also contains a host of other features. These include a choice of adjustment modes, including single push increment or 2Hz fast forward functions. Additional features are provided in the form of Zero adjustment and four levels of contrast control.