CY7C025AV-25AXCT Cypress Semiconductor Corp, CY7C025AV-25AXCT Datasheet - Page 13

• Manufacturer Part Number: CY7C025AV-25AXCT
• Description: CY7C025AV-25AXCT
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C025AV-25AXCT

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 128K (8K x 16)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Switching Waveforms
Document #: 38-06052 Rev. *M
Notes
43. CE = HIGH for the duration of the above timing (both write and read cycle).
44. IO
45. Semaphores are reset (available to both ports) at cycle start.
46. If t
A
A
A
0R
0R
SPS
0L
0
SEM
SEM
–A
SEM
R/W
R/W
IO
R/W
–A
–A
= IO
OE
is violated, the semaphore is definitely obtained by one side or the other, but which side gets the semaphore is unpredictable.
2
2L
0
2R
R
0L
L
R
L
= LOW (request semaphore); CE
t
SA
Figure 11. Timing Diagram of Semaphore Contention
Figure 10. Semaphore Read After Write Timing, Either Side
(continued)
VALID ADRESS
t
AW
R
WRITE CYCLE
t
t
PWE
SCE
= CE
t
SD
DATA
t
MATCH
SPS
MATCH
L
= HIGH.
t
IN
HA
VALID
t
HD
t
SWRD
t
SOP
t
SOP
READ CYCLE
CY7C024AV/024BV/025AV/026AV
t
SAA
VALID ADRESS
t
DOE
t
CY7C0241AV/0251AV/036AV
ACE
[44, 45, 46]
[43]
DATA
OUT
VALID
t
OHA
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