CY7C008-20AC Cypress Semiconductor Corp, CY7C008-20AC Datasheet - Page 9

• Manufacturer Part Number: CY7C008-20AC
• Description: IC SRAM 512KBIT 20NS 100LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C008-20AC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 512K (64K x 8)
• Speed: 20ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1146

Switching Waveforms
Document #: 38-06041 Rev. *A
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
21. R/W is HIGH for read cycles.
22. Device is continuously selected CE = V
23. OE = V
24. Address valid prior to or coincident with CE transition LOW.
25. To access RAM, CE = V
ADDRESS
DATA OUT
ADDRESS
DATA OUT
CE
IL
I
OE
I
CE
CC
SB
.
PREVIOUS DATA VALID
IL
, SEM = V
t
OHA
[21, 23, 24, 25]
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
[21, 24, 25]
t
t
ACE
ABE
[21, 22, 23]
t
LZOE
t
t
RC
IH
ACE
, SEM = V
t
RC
t
DOE
IL
.
DATA VALID
DATA VALID
t
OHA
t
t
t
OHA
HZCE
PD
t
t
HZCE
HZOE
CY7C008/009
CY7C018/019
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