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CY7C13451G Datasheet(PDF) 9 Page - Cypress Semiconductor |
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CY7C13451G Datasheet(HTML) 9 Page - Cypress Semiconductor |
9 / 23 page Document Number: 001-88572 Rev. *G Page 9 of 23 CY7C13451G Truth Table for Read or Write The Truth Table for read or write for part CY7C13451G is as follows. [8, 9] Function GW BWE BWD BWC BWB BWA Read H H XXXX Read H L H H H H Write Byte (A, DQPA)H L H H H L Write Byte (B, DQPB)H L H H L H Write Bytes (B, A, DQPA, DQPB)H L H H L L Write Byte (C, DQPC)H L H L H H Write Bytes (C, A, DQPC, DQPA)H L H L H L Write Bytes (C, B, DQPC, DQPB)H L H L L H Write Bytes (C, B, A, DQPC, DQPB, DQPA) H L H LLL Write Byte (D, DQPD) H L L HHH Write Bytes (D, A, DQPD, DQPA)H L L H H L Write Bytes (D, B, DQPD, DQPA)H L L H L H Write Bytes (D, B, A, DQPD, DQPB, DQPA)H L L H L L Write Bytes (D, B, DQPD, DQPB)H L L L H H Write Bytes (D, B, A, DQPD, DQPC, DQPA)H LLL H L Write Bytes (D, C, A, DQPD, DQPB, DQPA) H LLLL H Write All Bytes H LLLLL Write All Bytes L XXXXX Notes 8. X = “Don’t Care,” H = Logic HIGH, and L = Logic LOW. 9. This table is only a partial listing of the byte write combinations. Any combination of BWx is valid. Appropriate write is done based on the active byte write. |
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