CY7C027-20AXC Cypress Semiconductor Corp, CY7C027-20AXC Datasheet - Page 9
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CY7C027-20AXC
Manufacturer Part Number
CY7C027-20AXC
Description
CY7C027-20AXC
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C028-15AXC.pdf
(19 pages)
Specifications of CY7C027-20AXC
Format - Memory
RAM
Memory Type
SRAM - Dual Port, Asynchronous
Memory Size
512K (32K x 16)
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
Lead free / RoHS Compliant
Other names
428-2098
CY7C027-20AXC
CY7C027-20AXC
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CY7C027-20AXC
Manufacturer:
CY
Quantity:
67
Company:
Part Number:
CY7C027-20AXC
Manufacturer:
Cypress Semiconductor Corp
Quantity:
10 000
Company:
Part Number:
CY7C027-20AXCT
Manufacturer:
Cypress Semiconductor Corp
Quantity:
10 000
Switching Waveforms
Document #: 38-06042 Rev. *F
CURRENT
Notes
DATA OUT
ADDRESS
23. R/W is HIGH for read cycles.
24. Device is continuously selected CE = V
25. OE = V
26. Address valid prior to or coincident with CE transition LOW.
27. To access RAM, CE = V
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
Figure 4. Read Cycle No. 1 (Either Port Address Access)
Figure 5. Read Cycle No. 2 (Either Port CE/OE Access)
t
OHA
IL
IL
, SEM = V
Figure 6. Read Cycle No. 3 (Either Port)
and UB or LB = V
t
AA
t
PU
t
IH
AA
. To access semaphore, CE = V
t
t
LZCE
LZCE
t
LZCE
IL
t
t
ACE
ABE
. This waveform cannot be used for semaphore reads.
t
LZOE
t
t
RC
ACE
t
RC
t
DOE
IH
, SEM = V
IL
.
[23, 25, 26, 27]
DATA VALID
[23, 26, 27]
[23 ,24, 25]
DATA VALID
t
OHA
t
t
t
OHA
HZCE
PD
t
t
t
HZCE
HZCE
HZOE
CY7C027/028
CY7C037/038
Page 9 of 19
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