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74 series digital circuit of 74LS398/399 4-bit 2-to-1 data s

2016-10-19 11:08  
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74 series digital circuit of 74LS398/399 4-bit 2-to-1 data selector
74 series digital circuit of 74LS398/399 4-bit 2-to-1 data selector
a1, a2 ...= A1, A2 ... steady input level. QA0, QB0 ...= QA, QB ... level before the establishment of steady-state input conditions.74LS398/ 74LS399, 74F398/ 74LS399, 74S398/ 74LS399 4-bit 2-to-1 data selector 74LS398 has dual-ended output, and 74LS399 has single-ended output; 74LS398 and 74LS298 are similar, and they use the reverse phase clock.