CY7C024-25JXI Cypress Semiconductor Corp, CY7C024-25JXI Datasheet - Page 13
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CY7C024-25JXI
Manufacturer Part Number
CY7C024-25JXI
Description
IC SRAM 64KBIT 25NS 84PLCC
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C024-55AXC.pdf
(21 pages)
Specifications of CY7C024-25JXI
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
-40°C ~ 85°C
Package / Case
84-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CY7C024-25JXI
Manufacturer:
Cypress Semiconductor Corp
Quantity:
135
Company:
Part Number:
CY7C024-25JXI
Manufacturer:
Cypress Semiconductor Corp
Quantity:
10 000
Switching Waveforms
Notes
Document #: 38-06035 Rev. *D
37. CE = HIGH for the duration of the above timing (both write and read cycle).
38. I/O
39. Semaphores are reset (available to both ports) at cycle start.
40. If t
A
SPS
A
A
0R
0R
0L
0
= I/O
SEM
SEM
is violated, the semaphore is definitely obtained by one side or the other, but which side gets the semaphore is unpredictable.
–A
SEM
R/W
R/W
I/O
R/W
–A
–A
OE
0L
2
2L
0
2R
R
L
R
L
= LOW (request semaphore); CE
t
SA
Figure 10. Timing Diagram of Semaphore Contention
Figure 9. Semaphore Read After Write Timing, Either Side
(continued)
VALID ADRESS
t
AW
R
= CE
WRITE CYCLE
t
t
PWE
SCE
t
L
SD
DATA
t
= HIGH.
MATCH
SPS
MATCH
t
IN
HA
VALID
t
HD
t
SWRD
t
SOP
t
SOP
READ CYCLE
t
AA
VALID ADRESS
t
DOE
t
ACE
[38, 39, 40]
[37]
DATA
CY7C024/024A/0241
OUT
VALID
CY7C025/0251
t
OHA
Page 13 of 21
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