CY7C024-25JXCT Cypress Semiconductor Corp, CY7C024-25JXCT Datasheet - Page 11

• Manufacturer Part Number: CY7C024-25JXCT
• Description: IC SRAM 64KBIT 25NS 84PLCC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C024-25JXCT

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 64K (4K x 16)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 84-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Document #: 38-06035 Rev. *C
Switching Waveforms
Notes:
Read Cycle No. 3 (Either Port)
22. R/W is HIGH for read cycles
23. Device is continuously selected CE = V
24. OE = V
25. Address valid prior to or coincident with CE transition LOW.
26. To access RAM, CE = V
Read Cycle No. 2 (Either Port CE/OE Access)
Read Cycle No. 1 (Either Port Address Access)
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
t
OHA
[22, 24, 25, 25, 26]
IL
IL
and UB or LB = V
, SEM = V
t
AA
t
PU
t
AA
IH
t
t
. To access semaphore, CE = V
LZCE
LZCE
t
LZCE
[22, 25, 26]
IL
t
t
ACE
ABE
[22, 23, 24]
. This waveform cannot be used for semaphore reads.
t
LZOE
t
t
RC
ACE
t
RC
t
DOE
IH
, SEM = V
IL
DATA VALID
.
DATA VALID
t
OHA
t
t
t
OHA
HZCE
PD
CY7C024/0241
CY7C025/0251
t
t
t
HZCE
HZCE
HZOE
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