CY7C1339G-133AXI Cypress Semiconductor Corp, CY7C1339G-133AXI Datasheet - Page 8

• Manufacturer Part Number: CY7C1339G-133AXI
• Description: SRAM (Static RAM)
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1339G-133AXI

• Format - Memory: RAM
• Memory Type: SRAM - Synchronous
• Memory Size: 4M (128K x 32)
• Speed: 133MHz
• Interface: Parallel
• Voltage - Supply: 3.15 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Partial Truth Table for Read/Write
Document Number: 38-05520 Rev. *I
Read
Read
Write byte A – DQ
Write byte B – DQ
Write bytes B, A
Write byte C– DQ
Write bytes C, A
Write bytes C, B
Write bytes C, B, A
Write byte D– DQ
Write bytes D, A
Write bytes D, B
Write bytes D, B, A
Write bytes D, C
Write bytes D, C, A
Write bytes D, C, B
Write all bytes
Write all bytes
Notes
8.X = “Don't Care.” H = Logic HIGH, L = Logic LOW.
9.Table only lists a partial listing of the byte write combinations. Any combination of BW
C
D
B
Function
A
[8, 9]
GW
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
BWE
H
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
is valid. Appropriate write will be done based on which byte write is active.
BW
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
D
BW
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
C
BW
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
B
CY7C1339G
BW
Page 8 of 21
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
A
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