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HCF4089B 数据表(PDF) 3 Page - STMicroelectronics |
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HCF4089B 数据表(HTML) 3 Page - STMicroelectronics |
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3 / 13 page ![]() LOGIC DIAGRAM TRUTH TABLE Inputs Outputs Number of Pulses or I nput Logic Level (0 = low ; 1 = high ; X = don’t care) Number of Pulses or Output Logic Level (L = low ; H = high) DC BA CLK IN H IN ST R CAS CLR S ET O U T O U T INH OU T ”15” OU T 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 X X X 1 0 X 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 X X X X X X 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 X X X X X X 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 X X X X X X 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 • L H 16 L L H 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 • H * 16 H H 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 H 1 1 H H L 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 • 1 1 L L H * Output same as the first 16 lines of this truth table (depending on values of A, B, C, D). • Depends on internal state of counter. HCC/HCF4089B 3/13 |
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