CY7C038V-25AC Cypress Semiconductor Corp, CY7C038V-25AC Datasheet - Page 11

• Manufacturer Part Number: CY7C038V-25AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C038V-25AC

• Density: 1.125Mb
• Access Time (max): 25ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 3.3V
• Address Bus: 16b
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 2
• Supply Current: 165mA
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 100
• Word Size: 18b
• Number Of Words: 64K
• Lead Free Status / RoHS Status: Not Compliant

Switching Waveforms
Document #: 38-06078 Rev. *B
Notes
29. CE = HIGH for the duration of the above timing (both write and read cycle).
30. I/O
31. Semaphores are reset (available to both ports) at cycle start.
32. If t
A
A
A
0R
SPS
0L
0R
0
SEM
SEM
–A
SEM
R/W
R/W
I/O
R/W
–A
–A
= I/O
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
L
R
0L
L
= LOW (request semaphore); CE
t
SA
Figure 10. Timing Diagram of Semaphore Contention
Figure 9. Semaphore Read After Write Timing, Either Side
(continued)
VALID ADRESS
t
AW
R
= CE
WRITE CYCLE
t
t
PWE
SCE
L
t
SD
= HIGH.
DATA
t
MATCH
SPS
MATCH
t
IN
HA
VALID
t
HD
t
SWRD
t
SOP
t
SOP
READ CYCLE
t
SAA
VALID ADRESS
CY7C027V/027VN/027AV/028V
t
DOE
t
ACE
[30, 31, 32]
CY7C037V/037AV/038V
[29]
DATA
OUT
VALID
t
OHA
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