CY7C1518AV18-250BZI Cypress Semiconductor Corp, CY7C1518AV18-250BZI Datasheet - Page 10

• Manufacturer Part Number: CY7C1518AV18-250BZI
• Description: IC SRAM 72MBIT 250MHZ 165TFBGA
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1518AV18-250BZI

• Format - Memory: RAM
• Memory Type: SRAM - Synchronous, DDR II
• Memory Size: 72M (4M x 18)
• Speed: 250MHz
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.9 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 165-TFBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Write Cycle Descriptions
The following table represents the write cycle description for the part, CY7C1520AV18.
Document Number: 001-06982 Rev. *F
BWS
H
H
H
H
H
H
H
H
L
L
L
L
0
BWS
H
H
H
H
H
H
H
H
L
L
L
L
1
BWS
H
H
H
H
H
H
H
H
L
L
L
L
2
BWS
H
H
H
H
H
H
H
H
L
L
L
L
3
L–H
L–H
L–H
L–H
L–H
L–H
K
–
–
–
–
–
–
L–H During the data portion of a write sequence, all four bytes (D
L–H During the data portion of a write sequence, only the lower byte (D
L–H During the data portion of a write sequence, only the byte (D
L–H During the data portion of a write sequence, only the byte (D
L–H During the data portion of a write sequence, only the byte (D
L–H No data is written into the device during this portion of a write operation.
K
–
–
–
–
–
–
During the data portion of a write sequence, all four bytes (D
the device.
the device.
During the data portion of a write sequence, only the lower byte (D
into the device. D
into the device. D
During the data portion of a write sequence, only the byte (D
the device. D
the device. D
During the data portion of a write sequence, only the byte (D
the device. D
the device. D
During the data portion of a write sequence, only the byte (D
the device. D
the device. D
No data is written into the device during this portion of a write operation.
[8:0]
[8:0]
[17:0]
[17:0]
[26:0]
[26:0]
and D
and D
[35:9]
[35:9]
and D
and D
remains unaltered.
remains unaltered.
remains unaltered.
remains unaltered.
[35:18]
[35:18]
[35:27]
[35:27]
remains unaltered.
remains unaltered.
remains unaltered.
remains unaltered.
Comments
[2, 8]
CY7C1518AV18
CY7C1520AV18
[35:0]
[35:0]
[26:18]
[26:18]
[35:27]
[35:27]
[17:9]
[17:9]
) are written into
) are written into
) is written into
) is written into
) is written into
) is written into
) is written into
) is written into
[8:0]
[8:0]
Page 10 of 28
) is written
) is written
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