CY7C1381D-133AXI Cypress Semiconductor Corp, CY7C1381D-133AXI Datasheet - Page 9

• 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

Switching Waveforms
Notes
Document #: 38-06037 Rev. *E
25. Data I/O pins enter high impedance when OE is held LOW during write.
26. CE = HIGH for the duration of the above timing (both write and read cycle).
A
0
SEM
–A
R/W
I/O
A
OE
A
0R
0L
2
0
SEM
SEM
R/W
R/W
–A
–A
2R
2L
R
R
L
L
t
SA
(continued)
Figure 8. Semaphore Read After Write Timing, Either Side
Figure 9. Timing Diagram of Semaphore Contention
VALID ADDRESS
t
AW
WRITE CYCLE
t
t
PWE
SCE
t
SD
DATA
t
t
MATCH
SPS
MATCH
IN
HA
VALID
t
HD
t
SWRD
t
SOP
t
SOP
READ CYCLE
t
AA
VALID ADDRESS
t
ACE
t
DOE
[27, 28, 29]
DATA
[26]
OUT
CY7C138, CY7C139
VALID
t
OHA
Page 9 of 17
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