CY7C144AV-25AC Cypress Semiconductor Corp, CY7C144AV-25AC Datasheet - Page 10

• Manufacturer Part Number: CY7C144AV-25AC
• Description: IC SRAM 64KB DUAL 64-TQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C144AV-25AC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 64K (8K x 8)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Switching Waveforms
Document #: 38-06051 Rev. *C
Read Cycle No. 3 (Either Port)
Read Cycle No. 2 (Either Port CE/OE Access)
Read Cycle No. 1 (Either Port Address Access)
CURRENT
Notes:
DATA OUT
24. R/W is HIGH for read cycles.
25. Device is continuously selected CE = V
26. OE = V
27. Address valid prior to or coincident with CE transition LOW.
28. To access RAM, CE = V
ADDRESS
DATA OUT
ADDRESS
DATA OUT
IL
CE
.
I
OE
I
CE
CC
SB
PREVIOUS DATA VALID
IL
, SEM = V
t
OHA
[24, 26, 27, 28]
IH
. To access semaphore, CE = V
IL
. This waveform cannot be used for semaphore reads.
t
AA
t
PU
t
AA
t
t
LZCE
LZCE
t
LZCE
[24, 27, 28]
t
t
ACE
ABE
[24, 25, 26]
t
LZOE
t
t
RC
ACE
t
RC
IH
t
DOE
, SEM = V
IL
.
DATA VALID
CY7C138AV/144AV/006AV
CY7C139AV/145AV/016AV
DATA VALID
CY7C007AV/017AV
t
OHA
t
t
t
OHA
HZCE
PD
t
t
HZOE
HZCE
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