HT16566 clock equivalent, 1/2 duty vfd digital clock.
* VFD display 24 hour clock function
* Directly drive VFD panels at 1/2 Duty cycle
* 4.194304MHz crystal oscillation
* Zero adjust function
* Integrat.
four 7-segment displays are required to display the correct time output. The connections for the grids and segments are.
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