The level test circuit diagram composed of 7404 TTL hex not gate

Published:2011/5/17 4:14:00 Author:Ecco | Keyword: test circuit , TTL , hex , not gate | From:SeekIC

The test circuit diagram composed of 7404 TTL hex not gate is shown as the chart. The TTL (CMOS) circuit hascertain high and low level input threshold voltage, so it does not need additional setup or adjustment, the test results are very accurate. The two non-parallel gates of input side could increase driven capability, high level displays H, low level displays L. As using common anode digital tube, the polarity of VD1, VD2 changes. If it tests CMOS level, you should use a 4069 CMOS NAND gate and so on.



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