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CY7C1444KV33 Datasheet(PDF) 9 Page - Cypress Semiconductor |
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CY7C1444KV33 Datasheet(HTML) 9 Page - Cypress Semiconductor |
9 / 22 page CY7C1444KV33 CY7C1445KV33 Document Number: 001-66678 Rev. *G Page 9 of 22 Partial Truth Table for Read/Write The Partial Truth Table for Read/Write for CY7C1444KV33 is as follows [7, 8]. Function (CY7C1444KV33) GW BWE BWD BWC BWB BWA Read H H XX XX 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 LLL LL Write all bytes L X X X X X Partial Truth Table for Read/Write The Partial Truth Table for Read/Write for CY7C1445KV33 is as follows [7, 8]. Function (CY7C1445KV33) 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 all bytes H L L L Write all bytes L X X X Notes 7. The DQ pins are controlled by the current cycle and the OE signal. OE is asynchronous and is not sampled with the clock. 8. Table only lists a partial listing of the byte write combinations. Any Combination of BWX is valid Appropriate write will be done based on which byte write is active. |
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