CY7C4255V-25ASC Cypress Semiconductor Corp, CY7C4255V-25ASC Datasheet - Page 17

• Manufacturer Part Number: CY7C4255V-25ASC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4255V-25ASC

• Configuration: Dual
• Density: 144Kb
• Access Time (max): 15ns
• Word Size: 18b
• Organization: 8Kx18
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: TQFP
• Clock Freq (max): 40MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Supply Current: 30mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Notes
Document #: 38-06012 Rev. *B
33. Write to Last Physical Location.
34. Read from Last Physical Location.
Q
WCLK
WCLK
WCLK
0
WEN
RCLK
WXO
REN
WEN
RXO
WXI
–Q
LD
17
t
CLKH
(continued)
t
CLK
t
t
t
t
ENS
ENS
ENS
ENS
t
t
CLKH
CLKH
t
XIS
t
XI
Figure 18. Read Programmable Registers
Figure 19. Write Expansion Out Timing
Figure 20. Read Expansion Out Timing
Figure 21. Write Expansion In Timing
34
34
33
UNKNOWN
t
CLKL
t
t
XO
XO
t
ENH
t
A
t
t
XO
XO
PAE OFFSET
PAF OFFSET
CY7C4255V, CY7C4265V
CY7C4275V, CY7C4285V
PAE OFFSET
Page 17 of 21
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