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CY7C1545KV18-400BZXI Datasheet(PDF) 11 Page - Cypress Semiconductor |
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CY7C1545KV18-400BZXI Datasheet(HTML) 11 Page - Cypress Semiconductor |
11 / 27 page CY7C1541KV18, CY7C1556KV18 CY7C1543KV18, CY7C1545KV18 Document Number: 001-15700 Rev. *F Page 11 of 27 Write Cycle Descriptions The write cycle description table for CY7C1556KV18 follows. [3, 11] BWS0 K K Comments L L–H – During the Data portion of a write sequence, the single byte (D[8:0]) is written into the device. L – L–H During the Data portion of a write sequence, the single byte (D[8:0]) is written into the device. H L–H – No data is written into the device during this portion of a write operation. H – L–H No data is written into the device during this portion of a write operation. Write Cycle Descriptions The write cycle description table for CY7C1545KV18 follows. [3, 11] BWS0 BWS1 BWS2 BWS3 K K Comments LLLL L–H – During the Data portion of a write sequence, all four bytes (D[35:0]) are written into the device. LLLL – L–H During the Data portion of a write sequence, all four bytes (D[35:0]) are written into the device. L H H H L–H – During the Data portion of a write sequence, only the lower byte (D[8:0]) is written into the device. D[35:9] remains unaltered. L H H H – L–H During the Data portion of a write sequence, only the lower byte (D[8:0]) is written into the device. D[35:9] remains unaltered. H L H H L–H – During the Data portion of a write sequence, only the byte (D[17:9]) is written into the device. D[8:0] and D[35:18] remains unaltered. H L H H – L–H During the Data portion of a write sequence, only the byte (D[17:9]) is written into the device. D[8:0] and D[35:18] remains unaltered. H H L H L–H – During the Data portion of a write sequence, only the byte (D[26:18]) is written into the device. D[17:0] and D[35:27] remains unaltered. H H L H – L–H During the Data portion of a write sequence, only the byte (D[26:18]) is written into the device. D[17:0] and D[35:27] remains unaltered. H H H L L–H – During the Data portion of a write sequence, only the byte (D[35:27]) is written into the device. D[26:0] remains unaltered. H H H L – L–H During the Data portion of a write sequence, only the byte (D[35:27]) is written into the device. D[26:0] remains unaltered. HHHH L–H – No data is written into the device during this portion of a write operation. HHHH – L–H No data is written into the device during this portion of a write operation. [+] Feedback |
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