CY7C007A-20AC Cypress Semiconductor Corp, CY7C007A-20AC Datasheet - Page 14

• Manufacturer Part Number: CY7C007A-20AC
• Description: IC SRAM 256KBIT 20NS 80LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C007A-20AC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 256K (32K x 8)
• Speed: 20ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1144

Document #: 38-06045 Rev. *D
Switching Waveforms
Left Address Valid First:
CE
CE
Right Address Valid First:
Busy Timing Diagram No. 1 (CE Arbitration)
Busy Timing Diagram No. 2 (Address Arbitration)
Note:
40. If t
L
ADDRESS
ADDRESS
R
Valid First:
ADDRESS
ADDRESS
ADDRESS
ADDRESS
Valid First:
PS
is violated, the busy signal will be asserted on one side or the other, but there is no guarantee to which side BUSY will be asserted.
BUSY
BUSY
BUSY
BUSY
CE
CE
CE
CE
L,R
L,R
R
R
R
L
R
L
L
L
R
R
L
L
(continued)
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
[40]
ADDRESS MATCH
ADDRESS MATCH
[40]
t
t
BLC
BLC
ADDRESS MISMATCH
ADDRESS MISMATCH
t
t
BHA
BHA
t
t
BHC
BHC
CY7C006A/CY7C007A
CY7C016A/CY7C017A
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