74 Series digital circuit of 74246,74247 BCD seven segment decoder / driver

Published:2011/8/2 4:13:00 Author:Lucas | Keyword: 74 Series , digital circuit , BCD seven segment , decoder , driver | From:SeekIC

The open-collector output can directly drive the display; it has lamp test device; frontier, back porch are zero out; it can adjust the light intensity; the withstand voltage of 246 is 30V, and the withstand voltage of 247 is 15V; the 74246 and 7446,74247,7447 are similar but the word shapes, thus they are interchangeable. 1. It requires 0 to 15, then the turning off input (BI) must remain high level, if it does not eliminate decimal zero, the dynamic turning off input (RBI) is open or high. If the low input is direct added to turning off input, all segment outputs are off regardless of the level of other inputs.



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