CY7C1381D-133AXI Cypress Semiconductor Corp, CY7C1381D-133AXI Datasheet - Page 14

• Manufacturer Part Number: CY7C1381D-133AXI
• Description: IC,SYNC SRAM,512KX36,CMOS,QFP,100PIN,PLASTIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1381D-133AXI

• Format - Memory: RAM
• Memory Type: SRAM - Synchronous
• Memory Size: 18M (512K x 36)
• Speed: 133MHz
• Interface: Parallel
• Voltage - Supply: 3.135 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-2147; CY7C1381D-133AXI

Table 3. Non-Contending Read/Write
Table 4. Interrupt Operation Example (assumes BUSY
Table 5. Semaphore Operation Example
Document #: 38-06037 Rev. *E
Set Left INT
Reset Left INT
Set Right INT
Reset Right INT
No action
Left port writes semaphore
Right port writes 0 to semaphore
Left port writes 1 to semaphore
Left port writes 0 to semaphore
Right port writes 1 to semaphore
Left port writes 1 to semaphore
Right port writes 0 to semaphore
Right port writes 1 to semaphore
Left port writes 0 to semaphore
Left port writes 1 to semaphore
CE
H
H
X
H
L
L
L
R/W
X
H
X
H
X
L
Function
Function
Inputs
OE
H
X
L
X
L
X
X
SEM
H
X
H
H
L
L
L
High Z
Data Out
High Z
Data In
Data Out
Data In
R/W
I/O
X
X
X
L
0-7/8
1
0
0
1
1
0
1
1
1
0
1
L
=BUSY
Left
Outputs
CE
I/O
X
L
L
X
0-7/8
Left Port
R
=HIGH)
I/O
OE
X
X
X
L
0-7/8
1
1
1
0
0
1
1
0
1
1
1
A
Right
FFE
FFF
0-11
X
X
Power Down
Read Data in Semaphore
I/O Lines Disabled
Write to Semaphore
Read
Write
Illegal Condition
Semaphore free
Left port obtains semaphore
Right side is denied access
Right port is granted access to semaphore
No change. Left port is denied access
Left port obtains semaphore
No port accessing semaphore address
Right port obtains semaphore
No port accessing semaphore
Left port obtains semaphore
No port accessing semaphore
INT
H
X
X
L
R/W
X
X
X
L
CY7C138, CY7C139
Operation
CE
L
X
X
L
Status
Right Port
OE
X
X
X
L
A
FFE
FFF
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0-11
X
X
INT
X
X
H
L
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