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CY7C1426AV18-278BZXI Datasheet(PDF) 11 Page - Cypress Semiconductor

Part # CY7C1426AV18-278BZXI
Description  36-Mbit QDR??II SRAM 4-Word Burst Architecture
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C1426AV18-278BZXI Datasheet(HTML) 11 Page - Cypress Semiconductor

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CY7C1411AV18
CY7C1426AV18
CY7C1413AV18
CY7C1415AV18
Document Number: 38-05614 Rev. *C
Page 11 of 28
Write Cycle Descriptions[2, 10](CY7C1415AV18)
BWS0 BWS1 BWS2 BWS3
KK
Comments
L
L
L
L
L–H
During the Data portion of a Write sequence, all four bytes (D[35:0]) are written
into the device.
L
L
L
L
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] will remain 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] will remain 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] will remain 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] will remain 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] will remain 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] will remain 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] will remain 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] will remain 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.
Write Cycle Descriptions[2, 10] (CY7C1426AV18)
BWS0
KK
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.
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