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CDP1821CD3 数据表(PDF) 2 Page - Intersil Corporation |
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CDP1821CD3 数据表(HTML) 2 Page - Intersil Corporation |
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2 / 7 page ![]() 6-6 Functional Block Diagram ROW BUFFERS 16 x 32 CELL ARRAY 1/32 COLUMN DECODER 16 x 32 CELL ARRAY COLUMN BUFFERS COLUMN BUFFERS ROW BUFFERS ROW 16 ROW 31 ROW 0 ROW 15 COL. 0 COL. 31 COL. 0 COL. 31 CS • R/W • A4 CS • R/W • A4 CS R/W A0 A3 DI A5 A9 DI a0 a3 1/16 ROW DECODER a0 a3 1/16 ROW DECODER A4 A4 VDD VSS DO OPERATIONAL MODES MODE INPUTS OUTPUT READ/WRITE R/W CHIP-SELECT CS DATA OUTPUT DO Standby X 1 High Impedance Write 0 0 High Impedance Read 1 0 Contents of Addressed Call X = Don’t Care Logic 1 = High Logic 0 = Low CDP1821C/3 |
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