CY7C4801-25AC Cypress Semiconductor Corp, CY7C4801-25AC Datasheet - Page 9

• Manufacturer Part Number: CY7C4801-25AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4801-25AC

• Density: 4Kb
• Word Size: 9b
• 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
RENA1, RENA2
(RENB1,RENB2)
First Data Word Latency after Reset with Simultaneous Read and Write
WCLKA,WCLKB
DA
(DB
WENA1(WENB1)
WENA2(WENB2)
(if applicable)
RCLKA(RCLKB)
EFA(EFB)
QA
(QB
OEA(OEB)
Notes:
15. When t
16. The first word is available the cycle after (EFA, EFB) goes HIGH, always.
0
0
0
0
DA
The Latency Timing applies only at the Empty Boundary (EFA, EFB= LOW).
QA
DB
QB
8
8
8
8
)
)
SKEW1
t
ENS
> minimum specification, t
t
DS
D
0
(FIRSTVALID WRITE)
(continued)
FRL
t
SKEW1
(maximum) = t
t
OLZ
t
FRL
CLK
[
15
+ t
]
SKEW1
t
D
REF
. When t
1
SKEW1
9
t
OE
< minimum specification, t
t
A
D
[
16
2
]
FRL
(maximum) = either 2*t
CY7C4831/4841/4851
CY7C4801/4811/4821
D
0
D
t
A
3
CLK
+ t
SKEW1
or t
CLK
D
48X1–9
+ t
1
D
SKEW1
4
.