CY7C1381D-133AXI Cypress Semiconductor Corp, CY7C1381D-133AXI Datasheet - Page 10

• 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
27. I/O
28. Semaphores are reset (available to both ports) at cycle start.
29. If t
SPS
0R
ADDRESS
ADDRESS
= I/O
DATA
is violated, the semaphore will definitely be obtained by one side or the other, but there is no guarantee which side will control the semaphore.
BUSY
DATA IN
R/W
BUSY
0L
R/W
OUTL
= LOW (request semaphore); CE
R
L
R
R
L
Figure 10. Timing Diagram of Read with BUSY (M/S = HIGH)
(continued)
t
PS
Figure 11. Write Timing with Busy Input (M/S=LOW)
R
= CE
t
WB
L
= HIGH
t
BLA
MATCH
MATCH
t
PWE
t
WC
t
PWE
t
WH
t
WDD
t
VALID
SD
t
DDD
[21]
t
HD
CY7C138, CY7C139
t
BHA
t
BDD
VALID
Page 10 of 17
[+] Feedback