CY7C4245-10AC Cypress Semiconductor Corp, CY7C4245-10AC Datasheet - Page 8
CY7C4245-10AC
Manufacturer Part Number
CY7C4245-10AC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C4245-10AC.pdf
(25 pages)
Specifications of CY7C4245-10AC
Configuration
Dual
Density
72Kb
Access Time (max)
8ns
Word Size
18b
Organization
4Kx18
Sync/async
Synchronous
Expandable
Yes
Bus Direction
Uni-Directional
Package Type
TQFP
Clock Freq (max)
100MHz
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Supply Current
45mA
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
First Data Word Latency after Reset with Simultaneous Read and Write
Empty Flag Timing
Notes:
17. When t
18. The first word is available the cycle after EF goes HIGH, always.
Q
D
0
0
Q
WCLK
D
RCLK
–D
WEN
–Q
0
0
REN
WCLK
The Latency Timing applies only at the Empty Boundary (EF = LOW).
RCLK
OE
WEN
–Q
–D
EF
REN
17
17
OE
EF
17
17
SKEW2
t
ENS
t
DS
> minimum specification, t
t
t
DS
ENS
D
0
(FIRSTVALID WRITE)
D0
(continued)
t
SKEW2
t
ENH
t
FRL
FRL
t
SKEW2
[17]
(maximum) = t
t
OLZ
t
FRL
CLK
[17]
t
+ t
REF
SKEW2
t
REF
D
. When t
1
SKEW2
8
t
t
OE
A
< minimum specification, t
t
REF
t
DS
t
ENS
t
D
A
2
FRL
(maximum) = either 2*t
D1
t
t
SKEW2
ENH
CY7C4425/4205/4215
CY7C4225/4235/4245
t
FRL
[17]
D
0
t
A
D
[18]
3
CLK
D0
+ t
SKEW2
t
REF
or t
CLK
D
42X5–9
+ t
42X5–10
1
D
SKEW2
4
.