CY7C037V-15AXC Cypress Semiconductor Corp, CY7C037V-15AXC Datasheet - Page 10

• Manufacturer Part Number: CY7C037V-15AXC
• Description: IC SRAM 576KBIT 15NS 100LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C037V-15AXC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 576K (32K x 18)
• 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

Switching Waveforms
Document #: 38-06078 Rev. *B
Notes
CE
20. R/W must be HIGH during all address transitions.
21. A write occurs during the overlap (t
22. t
23. If OE is LOW during a R/W controlled write cycle, the write pulse width must be the larger of t
24. To access RAM, CE = V
25. To access upper byte, CE = V
26. Transition is measured ±500 mV from steady state with a 5 pF load (including scope and jig). This parameter is sampled and not 100% tested.
27. During this period, the I/O pins are in the output state, and input signals must not be applied.
28. If the CE or SEM LOW transition occurs simultaneously with or after the R/W LOW transition, the outputs remain in the high impedance state.
DATA OUT
ADDRESS
ADDRESS
CE
DATA IN
DATA IN
[24,25]
HA
the bus for the required t
To access lower byte, CE = V
[24,25]
is measured from the earlier of CE or R/W or (SEM or R/W) going HIGH at the end of write cycle.
R/W
R/W
OE
SD
IL
, SEM = V
. If OE is HIGH during an R/W controlled write cycle, this requirement does not apply and the write pulse can be as short as the specified t
IL
, LB = V
IL
, UB = V
t
t
SA
SA
Figure 7. Write Cycle No. 1: R/W Controlled Timing
NOTE 27
Figure 8. Write Cycle No. 2: CE Controlled Timing
(continued)
IH
SCE
.
IL
, SEM = V
IL
or t
, SEM = V
PWE
) of a LOW CE or SEM and a LOW UB or LB.
IH
.
IH
t
HZWE
.
[26]
t
t
AW
AW
t
t
WC
WC
t
t
SCE
PWE
[23]
PWE
t
t
SD
SD
or (t
HZWE
+ t
CY7C027V/027VN/027AV/028V
SD
t
t
) to allow the I/O drivers to turn off and data to be placed on
HA
HA
[20, 21, 22, 28]
[20, 21, 22, 23]
t
t
HD
HD
t
LZWE
CY7C037V/037AV/038V
t
HZOE
NOTE 27
[26]
Page 10 of 18
PWE
.
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