CY7C4255V-15ASXC Cypress Semiconductor Corp, CY7C4255V-15ASXC Datasheet - Page 20

• Manufacturer Part Number: CY7C4255V-15ASXC
• Description: CY7C4255V-15ASXC
• Manufacturer: Cypress Semiconductor Corp
• Series: CY7Cr

Specifications of CY7C4255V-15ASXC

• Function: Synchronous
• Memory Size: 144K (8K x 18)
• Data Rate: 100MHz
• Access Time: 10ns
• Voltage - Supply: 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Switching Waveforms
Notes
Document Number: 38-06012 Rev. *D
37. Clocks are free-running in this case.
38. The flags may change state during Retransmit as a result of the offset of the read and write pointers, but flags are valid at t
39. For the synchronous PAE and PAF flags (SMODE), an appropriate clock cycle is necessary after t
HF/PAE/PAF
async flags
REN/WEN
RCLK
RXI
and all
FL/RT
EF/FF
(continued)
Figure 23. Retransmit Timing
Figure 22. Read Expansion In Timing
t
PRT
[37, 38, 39]
RTR
to update these flags.
t
XIS
t
XI
CY7C4255V, CY7C4265V
CY7C4275V, CY7C4285V
RTR
t
.
RTR
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