CY7C144-55AC Cypress Semiconductor Corp, CY7C144-55AC Datasheet - Page 14

• Manufacturer Part Number: CY7C144-55AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C144-55AC

• Density: 64Kb
• Access Time (max): 55ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 13b
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 2
• Supply Current: 160mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Word Size: 8b
• Number Of Words: 8K
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Note
Document #: 38-06034 Rev. *G
28. If t
Left Address Valid First:
Right Address Valid First:
CE
CE
ADDRESS
ADDRESS
PS
ADDRESS
ADDRESS
ADDRESS
ADDRESS
R
L
is violated, the busy signal will be asserted on one side or the other, but there is no guarantee on which side BUSY will be asserted.
Valid First:
Valid First:
BUSY
BUSY
BUSY
BUSY
CE
CE
CE
CE
L,R
L,R
R
R
R
L
L
L
R
R
R
L
L
L
Figure 15. Busy Timing Diagram No. 2 (Address Arbitration)
(continued)
Figure 14. Busy Timing Diagram No. 1 (CE Arbitration)
t
t
PS
PS
ADDRESS MATCH
ADDRESS MATCH
t
t
RC
RC
or t
or t
t
t
PS
PS
WC
WC
t
t
BLA
BLA
ADDRESS MATCH
ADDRESS MATCH
t
t
BLC
BLC
ADDRESS MISMATCH
ADDRESS MISMATCH
t
t
BHA
BHA
t
t
BHC
BHC
[28]
[28]
CY7C144, CY7C145
Page 14 of 21