CY7C027-20AXCT Cypress Semiconductor Corp, CY7C027-20AXCT Datasheet - Page 14

• Manufacturer Part Number: CY7C027-20AXCT
• Description: CY7C027-20AXCT
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C027-20AXCT

• 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

Switching Waveforms
Document #: 38-06042 Rev. *F
Left Side Sets INT
Right Side Clears INT
Right Side Sets INT
Left Side Clears INT
Notes
ADDRESS
43. t
44. t
ADDRESS
ADDRESS
ADDRESS
HA
INS
R/W
depends on which enable pin (CE
R/W
R/W
R/W
or t
INT
INT
OE
INT
OE
INT
CE
CE
CE
CE
INR
R
R
R
R
R
R
R
L
L
L
L
L
L
R
R
R
L
L
depends on which enable pin (CE
R
:
L
L
:
:
R
:
(continued)
t
INS
WRITE 7FFE (FFFE for CY7C028/38)
t
WRITE 7FFF (FFFF for CY7C028/38)
L
INS
or R/W
[44]
[44]
L
L
or R/W
) is deasserted first.
Figure 15. Interrupt Timing Diagrams
t
INR
t
WC
L
[44]
) is asserted last.
t
WC
t
INR
t
t
[44]
HA
HA
[43]
[43]
(FFFE for CY7C028/38)
(FFFF for CY7C028/38)
READ 7FFE
READ 7FFF
t
t
RC
RC
CY7C027/028
CY7C037/038
Page 14 of 19
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