CY7C144-15JC Cypress Semiconductor Corp, CY7C144-15JC Datasheet - Page 12

CY7C144-15JC

Manufacturer Part Number
CY7C144-15JC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of CY7C144-15JC

Density
64Kb
Access Time (max)
15ns
Sync/async
Asynchronous
Architecture
Not Required
Clock Freq (max)
Not RequiredMHz
Operating Supply Voltage (typ)
5V
Address Bus
13b
Package Type
PLCC
Operating Temp Range
0C to 70C
Number Of Ports
2
Supply Current
220mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
68
Word Size
8b
Number Of Words
8K
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C144-15JC
Manufacturer:
CYPRESS
Quantity:
1 285
Part Number:
CY7C144-15JC
Manufacturer:
CY
Quantity:
1 292
Switching Waveforms
Notes
Document #: 38-06034 Rev. *E
24. CE = HIGH for the duration of the above timing (both write and read cycle).
25. I/O
26. Semaphores are reset (available to both ports) at cycle start.
27. If t
SPS
A
0R
0
SEM
A
−A
R/W
A
I/O
= I/O
OE
0R
is violated, the semaphore will definitely be obtained by one side or the other, but there is no guarantee which side will control the semaphore.
0L
SEM
2
0
SEM
−A
R/W
−A
R/W
0L
2R
2L
= LOW (request semaphore); CE
R
L
L
R
t
SA
Figure 10. Semaphore Read After Write Timing, Either Side
(continued)
VALID ADDRESS
t
AW
WRITE CYCLE
R
t
t
PWE
SCE
= CE
t
Figure 11. Semaphore Contention
DATA
SD
L
= HIGH
t
MATCH
SPS
MATCH
t
IN
HA
VALID
t
HD
t
SWRD
t
SOP
t
SOP
READ CYCLE
VALID ADDRESS
t
AA
[25, 26, 27]
t
ACE
t
DOE
DATA
[24]
CY7C144, CY7C145
OUT
VALID
t
OHA
Page 12 of 20
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