CY7C4255-25AC Cypress Semiconductor Corp, CY7C4255-25AC Datasheet - Page 13

• Manufacturer Part Number: CY7C4255-25AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4255-25AC

• Density: 128Kb
• Word Size: 18b
• Sync/async: Synchronous
• Expandable: Yes
• Package Type: TQFP
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• 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
Write Expansion In Timing
Read Expansion Out Timing
Read Programmable Registers
Write Expansion Out Timing
Notes:
31. Write to Last Physical Location.
32. Read from Last Physical Location.
Q
WCLK
WCLK
WCLK
0
RCLK
WEN
WEN
WXO
RXO
REN
–Q
WXI
LD
17
t
CLKH
(continued)
t
CLK
t
t
t
t
ENS
ENS
ENS
ENS
t
t
CLKH
CLKH
t
XIS
t
XI
Note 32
Note 31
Note 31
UNKNOWN
t
CLKL
t
t
t
XO
XO
ENH
t
A
t
t
XO
XO
13
PAE OFFSET
PAF OFFSET
PAE OFFSET
CY7C4255
CY7C4265
4255–18
4255–19
4255–20
4255–21