CY7C025-25AXI Cypress Semiconductor Corp, CY7C025-25AXI Datasheet - Page 11

• Manufacturer Part Number: CY7C025-25AXI
• Description: IC SRAM 128KBIT 25NS 100LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C025-25AXI

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 128K (8K x 16)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Switching Waveforms
Notes
Document #: 38-06035 Rev. *D
23. R/W is HIGH for read cycles
24. Device is continuously selected CE = V
25. OE = V
26. Address valid prior to or coincident with CE transition LOW.
27. To access RAM, CE = V
CURRENT
DATA OUT
ADDRESS
DATA OUT
ADDRESS
DATA OUT
UB or LB
LB or UB
CE and
IL
.
CE
I
OE
I
CC
SB
PREVIOUS DATA VALID
IL
, UB or LB = V
Figure 4. Read Cycle No. 1 (Either Port Address Access)
Figure 5. Read Cycle No. 2 (Either Port CE/OE Access)
t
OHA
IL
Figure 6. Read Cycle No. 3 (Either Port)
IL
and UB or LB = V
, SEM = V
t
AA
t
PU
t
AA
IH
t
t
LZCE
LZCE
. To access semaphore, CE = V
t
LZCE
t
t
IL
ACE
ABE
. This waveform cannot be used for semaphore reads.
t
LZOE
t
t
RC
ACE
t
RC
t
DOE
IH
, SEM = V
[23, 25, 26, 26, 27]
IL
DATA VALID
.
[23, 26, 27]
[23, 24, 25]
DATA VALID
t
OHA
CY7C024/024A/0241
t
t
t
OHA
HZCE
PD
t
t
t
HZCE
HZCE
HZOE
CY7C025/0251
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