CY7C4245V-15ASC Cypress Semiconductor Corp, CY7C4245V-15ASC Datasheet - Page 12

• Manufacturer Part Number: CY7C4245V-15ASC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4245V-15ASC

• Configuration: Dual
• Density: 64Kb
• Access Time (max): 11ns
• Word Size: 18b
• Organization: 4Kx18
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: TQFP
• Clock Freq (max): 66.7MHz
• 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

Document #: 38-06029 Rev. *C
Switching Waveforms
First Data Word Latency after Reset with Simultaneous Read and Write
Empty Flag Timing
Notes:
18. When t
19. The first word is available the cycle after EF goes HIGH, always.
D
+ t
Q
0
WCLK
D
RCLK
–D
0
Q
WEN
SKEW2
REN
0
WCLK
–Q
RCLK
–D
0
OE
WEN
EF
REN
17
–Q
17
OE
SKEW2
EF
17
17
. The Latency Timing applies only at the Empty Boundary (EF = LOW).
> minimum specification, t
t
ENS
t
DS
t
t
DS
ENS
D
0
(FIRSTVALID WRITE)
D0
t
SKEW2
(continued)
t
ENH
t
FRL
FRL
t
SKEW2
[18]
(maximum) = t
t
OLZ
t
FRL
[18]
CLK
t
REF
+ t
SKEW2
t
D
REF
1
. When t
SKEW2
t
t
OE
A
t
< minimum specification, t
REF
t
DS
t
ENS
t
D
A
2
CY7C4225V/4205V/4215V
CY7C4425V/4235V/4245V
D1
t
SKEW2
t
FRL
ENH
(maximum) = either 2*t
t
FRL
[18]
D
0
t
A
[19]
D
3
D0
t
REF
CLK
Page 12 of 20
+ t
SKEW2
D
1
D
or t
4
CLK