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CY7C1526KV18-333BZC Datasheet(PDF) 11 Page - Cypress Semiconductor |
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CY7C1526KV18-333BZC Datasheet(HTML) 11 Page - Cypress Semiconductor |
11 / 31 page CY7C1511KV18, CY7C1526KV18 CY7C1513KV18, CY7C1515KV18 Document Number: 001-00435 Rev. *G Page 11 of 31 Write Cycle Descriptions The write cycle description table for CY7C1511KV18 and CY7C1513KV18 follows.[2, 10] BWS0/ NWS0 BWS1/ NWS1 K K Comments L L L–H – During the data portion of a write sequence : CY7C1511KV18 − both nibbles (D[7:0]) are written into the device. CY7C1513KV18 − both bytes (D[17:0]) are written into the device. L L – L-H During the data portion of a write sequence : CY7C1511KV18 − both nibbles (D[7:0]) are written into the device. CY7C1513KV18 − both bytes (D[17:0]) are written into the device. L H L–H – During the data portion of a write sequence : CY7C1511KV18 − only the lower nibble (D[3:0]) is written into the device, D[7:4] remains unaltered. CY7C1513KV18 − only the lower byte (D[8:0]) is written into the device, D[17:9] remains unaltered. L H – L–H During the data portion of a write sequence : CY7C1511KV18 − only the lower nibble (D[3:0]) is written into the device, D[7:4] remains unaltered. CY7C1513KV18 − only the lower byte (D[8:0]) is written into the device, D[17:9] remains unaltered. H L L–H – During the data portion of a write sequence : CY7C1511KV18 − only the upper nibble (D[7:4]) is written into the device, D[3:0] remains unaltered. CY7C1513KV18 − only the upper byte (D[17:9]) is written into the device, D[8:0] remains unaltered. H L – L–H During the data portion of a write sequence : CY7C1511KV18 − only the upper nibble (D[7:4]) is written into the device, D[3:0] remains unaltered. CY7C1513KV18 − only the upper byte (D[17:9]) is written into the device, D[8:0] remains unaltered. H H L–H – No data is written into the devices during this portion of a write operation. H H – L–H No data is written into the devices during this portion of a write operation. Write Cycle Descriptions The write cycle description table for CY7C1526KV18 follows. [2, 10] BWS0 K K 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. Note 10. Is based on a write cycle that was initiated in accordance with the Write Cycle Descriptions table. NWS0, NWS1, BWS0, BWS1, BWS2, and BWS3 can be altered on different portions of a write cycle, as long as the setup and hold requirements are achieved. [+] Feedback |
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