CY7C144-55AXC Cypress Semiconductor Corp, CY7C144-55AXC Datasheet - Page 15

• Manufacturer Part Number: CY7C144-55AXC
• Description: IC SRAM 64KBIT 55NS 64LQFP
• Manufacturer: Cypress Semiconductor Corp
• Type: Asynchronousr

Specifications of CY7C144-55AXC

• Memory Size: 64K (8K x 8)
• Package / Case: 64-LQFP
• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Access Time: 55 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 160 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Ports: 2
• Operating Supply Voltage: 5 V
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 428-2154; CY7C144-55AXC

Switching Waveforms
Note
Document #: 38-06034 Rev. *H
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
l,R
l,R
CE
CE
CE
CE
R
R
R
R
R
R
L
L
L
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 15 of 23
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