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HD74LS283P 数据表(PDF) 2 Page - Renesas Technology Corp |
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HD74LS283P 数据表(HTML) 2 Page - Renesas Technology Corp |
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2 / 8 page ![]() HD74LS283 Rev.3.00, Jul.15.2005, page 2 of 7 Function Table Outputs When C0 = L When C0 = H Inputs When C2 = L When C2 = H A1 B1 A2 B2 Σ1 Σ2 C2 Σ1 Σ2 C2 A3 B3 A4 B4 Σ3 Σ4 C4 Σ3 Σ4 C4 L L L L L L L H L L H L L L H L L L H L L H L L H L L L H L H H L L L H L H H L L L H L L H L H H L H L H L H H L L L H L H H L H H L L L H H H H L L L H H L H L L L H L H L H H L H L L H H H L L L H L H L H H H L L L H H H L H L L H H L H L L H H L L H H L H H L H H H L H L H H L H H H H L H L H H H H H H L H H H H H H; high level, L; low level Note: Input conditions at A1, B1, A2, B2, and C0are use to determine outputs Σ1 and Σ2 and the value of the internal carry C2. The values at C2, A3, B3, A4, and B4 are then used to determine outputs Σ3, Σ4, and C4. |
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