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CY7C1441AV33-133AXI Datasheet(PDF) 10 Page - Cypress Semiconductor |
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CY7C1441AV33-133AXI Datasheet(HTML) 10 Page - Cypress Semiconductor |
10 / 34 page CY7C1441AV33 Document Number: 38-05357 Rev. *K Page 10 of 34 Truth Table for Read/Write Function (CY7C1441AV33) [6, 7] GW BWE BWD BWC BWB BWA Read H H X X X X Read H L HH HH Write Byte A (DQA, DQPA)H L H H H L Write Byte B(DQB, DQPB)H L H H L H Write Bytes A, B (DQA, DQB, DQPA, DQPB)H L H H L L Write Byte C (DQC, DQPC)H L H L H H Write Bytes C, A (DQC, DQA, DQPC, DQPA)H L H L H L Write Bytes C, B (DQC, DQB, DQPC, DQPB)H L H L L H Write Bytes C, B, A (DQC, DQB, DQA, DQPC, DQPB, DQPA) HL HL L L Write Byte D (DQD, DQPD)H L L H H H Write Bytes D, A (DQD, DQA, DQPD, DQPA)H L L H H L Write Bytes D, B (DQD, DQA, DQPD, DQPA)H L L H L H Write Bytes D, B, A (DQD, DQB, DQA, DQPD, DQPB, DQPA) HL LHL L Write Bytes D, B (DQD, DQB, DQPD, DQPB) H LLL H H Write Bytes D, B, A (DQD, DQC, DQA, DQPD, DQPC, DQPA) H LLL H L Write Bytes D, C, A (DQD, DQB, DQA, DQPD, DQPB, DQPA) H LLL L H Write All Bytes H L L L L L Write All Bytes L X X X X X Notes 6. X = “Don't Care.” H = Logic HIGH, L = Logic LOW. 7. Table only lists a partial listing of the byte write combinations. Any Combination of BWX is valid Appropriate write is done based on which byte write is active. |
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