CY7C4265-10ASC Cypress Semiconductor Corp, CY7C4265-10ASC Datasheet - Page 8

• Manufacturer Part Number: CY7C4265-10ASC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4265-10ASC

• Density: 256Kb
• 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

Document #: 38-06004 Rev. *C
Switching Waveforms
Reset Timing
First Data Word Latency after Reset with Simultaneous Read and Write
Notes:
16. The clocks (RCLK, WCLK) can be free-running during reset.
17. After reset, the outputs will be LOW if OE = 0 and three-state if OE = 1.
18. When t
19. The first word is available the cycle after EF goes HIGH, always.
REN, WEN,
Q
D
t
0
0
Q
CLK
WCLK
RCLK
EF,PAE
FF,PAF,
WEN
–D
–Q
0
REN
–Q
OE
+ t
EF
17
17
RS
SKEW2
17
SKEW2
HF
LD
. The Latency Timing applies only at the Empty Boundary (EF = LOW).
t
> minimum specification, t
[16]
ENS
t
DS
D
0
(FIRSTVALID WRITE)
(continued)
FRL
t
SKEW2
(maximum) = t
t
t
t
RSF
RSF
RSF
t
RS
t
OLZ
t
FRL
[18]
CLK
+ t
SKEW2
t
REF
D
1
. When t
SKEW2
t
OE
< minimum specification, t
t
RSR
t
D
A
2
FRL
(maximum) = either 2*t
D
0
t
A
[19]
D
3
OE = 1
OE = 0
CY7C4255
CY7C4265
[17]
CLK
Page 8 of 22
+ t
SKEW2
D
1
D
4
or
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