CY7C009V-15AXC Cypress Semiconductor Corp, CY7C009V-15AXC Datasheet - Page 13

• Manufacturer Part Number: CY7C009V-15AXC
• Description: CY7C009V-15AXC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C009V-15AXC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 1M (128K x 8)
• Speed: 15ns
• 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
• Other names: 428-1786

Switching Waveforms
Document Number: 38-06044 Rev. *E
Timing Diagram of Semaphore Contention
Semaphore Read After Write Timing, Either Side
Notes
36. CE = HIGH for the duration of the above timing (both write and read cycle).
37. I/O
38. Semaphores are reset (available to both ports) at cycle start.
39. If t
A
A
A
0R
SPS
0L
0R
0
SEM
SEM
–A
SEM
R/W
R/W
I/O
R/W
–A
–A
OE
= I/O
is violated, the semaphore will definitely be obtained by one side or the other, but which side will get the semaphore is unpredictable.
2
2L
2R
0
R
R
L
L
0L
= LOW (request semaphore); CE
t
SA
(continued)
VALID ADRESS
t
AW
WRITE CYCLE
t
t
R
PWE
SCE
= CE
t
SD
DATA
t
MATCH
SPS
MATCH
L
= HIGH.
t
IN
HA
[37, 38, 39]
VALID
t
HD
[36]
t
SWRD
t
SOP
t
SOP
READ CYCLE
t
SAA
VALID ADRESS
t
DOE
t
ACE
DATA
OUT
CY7C008V/009V
CY7C018V/019V
VALID
t
OHA
Page 13 of 23
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