IDT72221L15J IDT, Integrated Device Technology Inc, IDT72221L15J Datasheet - Page 10

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IDT72221L15J

Manufacturer Part Number
IDT72221L15J
Description
IC FIFO SYNC 1KX9 15NS 32PLCC
Manufacturer
IDT, Integrated Device Technology Inc
Series
7200r
Datasheet

Specifications of IDT72221L15J

Function
Synchronous
Memory Size
9K (1K x 9)
Data Rate
67MHz
Access Time
15ns
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
32-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
72221L15J

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NOTE:
1. Only one of the two write enable inputs, WEN1 or WEN2, needs to go inactive to inhibit writes to the FIFO.
NOTE:
1. When t
IDT72421/72201/72211/72221/72231/72241/72251 CMOS SyncFIFO™
64 x 9, 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9
(If Applicable)
(If Applicable)
When
The Latency Timings apply only at the Empty Boundary (EF = LOW).
Q
D
WCLK
t
WEN1
WEN2
REN1,
Q
RCLK
REN2
0
D
SKEW1
SKEW1
0
WCLK
WEN2
WEN1
- Q
REN1,
REN2
0
RCLK
- D
0
OE LOW
FF
- Q
- D
8
OE
8
EF
≥ minimum specification, t
< minimum specification, t
8
DATA IN OUTPUT REGISTER
8
t
DATA IN OUTPUT REGISTER
LOW
t
t
ENS
ENS
DS
t
ENS
DATA WRITE 1
t
NO WRITE
SKEW1
t
t
SKEW1
ENH
t
ENH
FRL
FRL
t
maximum = t
maximum = 2t
ENH
t
t
FRL
A
t
CLK
WFF
t
CLK
(1)
REF
+ t
+ t
SKEW1
SKEW1
t
t
ENS
ENS
t
DS
Figure 9. Empty Flag Timing
or t
Figure 8. Full Flag Timing
CLK
+ t
SKEW1
t
WFF
10
t
t
DATA READ
t
ENH
ENH
REF
t
A
t
t
ENS
ENS
t
t
ENS
DS
NO WRITE
DATA WRITE 2
t
ENH
t
A
t
t
t
ENH
SKEW1
ENH
t
DATA READ
SKEW1
COMMERCIAL AND INDUSTRIAL
t
WFF
NEXT DATA READ
t
TEMPERATURE RANGES
FFL
t
t
ENS
ENS
t
REF
(1)
(1)
(1)
OCTOBER 22, 2008
NO WRITE
2655 drw 11
2655 drw 10

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