Digital tube dynamic scanning circuit

Published:2011/5/25 21:40:00 Author:Christina | Keyword: Digital tube, dynamic scanning | From:SeekIC

One group of digital tube dynamic scanning display needs two groups of control signal: one group is the font code which is output by the field output port, this font code can be used to control the displaying font, called the segment-code, another group is the control signal which is output by the bit output port, this control signal can be used to select which bit of the digital tube will be working, called the bit-code. The digital tube is composed of seven bar-type LEDs and a circular LED, so there are 8 section lines that can be used in the 8-bit parallel system. There are two kinds of digital tubes: the altogether cathode and the altogether anode. The public cathode of the altogether anode digital tube connects to the ground.



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