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

• Manufacturer Part Number: CY7C027-20AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C027-20AC

• Density: 512Kb
• Access Time (max): 20ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 15b
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 2
• Supply Current: 265mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 100
• Word Size: 16b
• Number Of Words: 32K
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Document #: 38-06042 Rev. *D
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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