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CY7C1382D-167AXC Datasheet(PDF) 10 Page - Cypress Semiconductor |
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CY7C1382D-167AXC Datasheet(HTML) 10 Page - Cypress Semiconductor |
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10 / 37 page  CY7C1380D CY7C1380F CY7C1382D Document Number: 38-05543 Rev. *N Page 10 of 37 Truth Table for Read/Write The Truth Table for Read/Write for CY7C1380D/CY7C1380F follows. [6, 7] Function (CY7C1380D/CY7C1380F) GW BWE BWD BWC BWB BWA Read H H X X X X Read H L HH HH Write Byte A – (DQA and DQPA)H L H H H L Write Byte B – (DQB and DQPB)H L H H L H Write Bytes B, A H L H H L L Write Byte C – (DQC and DQPC)H L H L H H Write Bytes C, A H L H L H L Write Bytes C, B H L H L L H Write Bytes C, B, A H L H L L L Write Byte D – (DQD and DQPD)H L L H H H Write Bytes D, A H L L H H L Write Bytes D, B H L L H L H Write Bytes D, B, A H L L H L L Write Bytes D, C H L L L H H Write Bytes D, C, A H L L L H L Write Bytes D, C, B H L L L L H Write All Bytes H L L L L L Write All Bytes L X X X X X Truth Table for Read/Write The Truth Table for Read/Write for CY7C1382D follows. [6, 7] Function (CY7C1382D) GW BWE BWB BWA Read H H X X Read H L H H Write Byte A – (DQA and DQPA)H L H L Write Byte B – (DQB and DQPB)H L L H Write Bytes B, A H L L L Write All Bytes H L L L Write All Bytes L 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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